SATO TOSHIRO

Academic Assembly School of Science and Technology Institute of Engineering

Interdisciplinary Cluster for Cutting Edge Research Research Center for Aerospace Systems 

Professor 

Degree

  • Doctor of Philosophy
  • Master of Engineering
  • Bachelor of Engineering

Research Keyword

    High-frequency magnetics, High-frequency power magnetics, Magnetic thin film/device/sensor

Field Of Study

  • High Frequency Magnetic Materials
  • Microwave Magnetics
  • High Frequency Power Magnetics
  • Magnetic Sensor

Career

  • 2005
    Professor, Faculty of Engineering, Shinshu University
  • 1996 - 2005
    Associate Professor, Faculty of Engineering, Shinshu University
  • 1996 - 1996
    Manager, Semiconductor Div., TOSHIBA Corp.
  • 1989 - 1996
    Researcher, R&D Center, TOSHIBA Corp.

Educational Background

  • 1986 - 1989, Chiba University, Graduate School of Science and Technology, Product Engineering
  • 1982 - 1984, Chiba University, Graduate School of Engineering, Electrical Engineering
  • 1980 - 1982, Chiba University, Faculty of Engineering, Electrical Engineering

Member History

  • 2023
    Executive Committee Chair, IEEE Japan SYWL Workshop (held in Nagano, Japan)
  • 2023
    Executive Committee Chair, IEEE Japan Metro Area Workshop (held in Nagano, Japan)
  • 2022 - 2023
    Local Committee Member, International Symposium on Integrated Magnetics 2023 (iSIM2023), Sendai, Japan, May14-15, 2023
  • 2022 - 2022
    日本磁気学会第46回学術講演会、実行委員会委員長, Magnetics Society of Japan
  • 2021 - 2023
    Chair, IEEE Region 10, Shin-etsu Section
  • 2021 - 2023
    Vice Chair, IEEE MAG-33 Shin-etsu Chapter
  • 2020 - 2025
    Chair, Techniacal Committee on Magnetics, Institute of Electrical Engineers of Japan
  • 2019 - 2020
    Vice Chair, IEEE Region 10, Shin-etsu Section
  • 2019 - 2020
    Chair, IEEE MAG-33 Shin-etsu Chapter
  • 2018 - 2019
    Organizing Committee Member, International Symposium on Advanced Power Packaging 2019, ISAPP2019 (Osaka, Japan)
  • 2014 - 2015
    Technical Program Committee Member, International Telecommunications Energy Conference, INTELEC2015 (Osaka, Japan), IEEE Power Electronics Society
  • 2013 - 2014
    Auditor, Fundamentals and Materials Society, Institute of Electrical Engineers of Japan
  • 2013 - 2014
    Executive Committee Member, International Conference on Microwave Magnetics, ICMM2014 (Boston, USA), IEEE Magnetics Society
  • 2013 - 2014
    Program Committee Chair, International Conference on Microwave Magnetics, ICMM2014 (Boston, USA), IEEE Magnetics Society
  • 2012 - 2018
    Member, Techniacal Committee on Magnetics, Institute of Electrical Engineers of Japan
  • 2012 - 2013
    Advisor to the Board of Directors, Magnetics Society of Japan
  • 2009 - 2011
    Editorial Director, Magnetics Society of Japan
  • 2007 - 2008
    Advisory Committee Member, 7th International Workshop on high frequency micromagnetic devices and materials, MMDM7 (Sacramento, USA), IEEE Magnetics Society
  • 2006 - 2008
    Council Member, Magnetics Society of Japan
  • 2006 - 2007
    Advisory Committee Member, 6th International Workshop on high frequency micromagnetic devices and materials, MMDM6 (Madrid, Spain), IEEE Magnetics Society
  • 2005 - 2006
    Advisory/Program Committee Member, 5th International Workshop on High Frequency Micromagnetic Devices and Materials, MMDM5 (Baltimore, USA)
  • 2005 - 2005
    日本応用磁気学会第29回学術講演会、実行委員会事務局長, Magnetics Society of Japan
  • 2004 - 2005
    Program Committee Member, Internatinal Magnetics Conference, INTERMAG2005 (Nagoya, Japan), IEEE Magnetic Society
  • 2004 - 2005
    Advisory/Program Committee Member, 4th International Workshop on High Frequency Micromagnetic Devices and Materials, MMDM4 (San Diego, USA)
  • 2002 - 2011
    Member, Techniacal Committee on Magnetics, Institute of Electrical Engineers of Japan
  • 2002 - 2003
    Publications Chair, 2nd International Workshop on high frequency micromagnetic devices and materials, MMDM2 (Bostont,USA)
  • 2002 - 2003
    Executive Committee Member, IUMRS-ICAM 2003 (Yokohama, Japan)
  • 2001 - 2002
    Publications Chair, 1st International Workshop on high frequency micromagnetic devices and materials, MMDM1 (Delft,Netherlands)
  • 1999 - 2009
    Chief Editor, High frequency magnetics and measurement, Editorial Committee, Magnetics Society of Japan
  • 1999 - 2005
    Member, Techniacal Committee on Telecommunications Energy, Institute of Electroncs, Information and Communication Engineers of Japan

Award

  • 2023
    Magnetics Society of Japan, Encouragement Paper Award : Fabrication of Coupled Inductor for LLC Resonant Converter with a Current-Doubler Rectification Circuit, N. Kawada, H. Oyama, T. Minamisawa, M. Sonehara, and T. Sato, Journal of the Magnetics Society of Japan, Vol.7, No.1, pp.80-84, 2023.
  • 2021
    Japan Institute of Electronics Packaging, Academic Plaza 10 years Award, 2021 JPCA Show/Academic Plaza, Japan Institute of Electronics Packaging
  • 2019
    Japan Institute of Electronics Packaging, JIEP Poster Award of ICEP 2019, Au–Sn Soldering Using a Micro-heater to Restrain Excess Temperature Rise Inside the Package, Hideaki Mizusaki, Toshiro Sato, Makoto Sonehara
  • 2019
    Magnetics Society of Japan, Encouragement Paper Award ;Integrated CMOS Switch Buck DC-DC Converter Fabricated in Organic Interposer with Embedded Magnetic Core Inductor, T. Akiyama, S. Ishida, T. Shirasawa, T. Fukuoka, S. Hara, H. Yoshida, M. Sonehara, T. Sato, K. Miyaji, Journal of the Magnetics Society of Japan, Vol.43, No.3, pp.64-69, May 2019..
  • 2018
    Japan Institute of Electronics Packaging, 2018 Academic Plaza Award, 2018 JPCA Show/Academic Plaza, Japan Institute of Electronics Packaging
  • 2017
    Magnetics Society of Japan, Encouragement Paper Award ; Low permeability composite magnetic core transformer with high coupling coefficient and its application to PFM controlled quasi-resonant mode flyback-type DC-DC converter, K. Sato, T. Sato, M. Sonehara, H. Takeuchi, Journal of the Magnetics Society of Japan, Vol.41, No.6, pp.132-139, Dec. 2017.
  • 2017
    Magnetics Society of Japan, Encouragement Paper Award : Investigation on Improvement of Figure of Merit of Faraday-effect of Fe (Co) Thin Film by Introduction of Induced Transmission Filter, M. Miyamoto, T. Kubo, T. Hanada, H. Ihara, T. Sato, M. Sonehara, Journal of the Magnetics Society of Japan, Vol.1, No.1, pp.14-19, 2017.
  • 2015
    Magnetics Society of Japan, MSJ Distinguished Paper Award, K. Hagita, Y. Yazaki, Y. Kondo, M. Sonehara, T. Sato, T. Fujii, K. Kobayashi, S. Nakazawa, H. Shimizu, T. Watanabe, Y. Seino, N, Matsushita, Y. Yanagihara, T. Someya, H. Fuketa, M. Takamiya, and T. Sakurai, "CMOS Switch Buck DC-DC Converter Fabricated in Organic Interposer with Embedded Zn-Fe Ferrite Core Inductor", Journal of the Magnetics Society of Japan, Vol.39, No.2, pp.71-79 (2015)
  • 2015
    Japan Institute of Electronics Packaging, Excellent Presentation Award, Spring Meeting, Japan Institute of Electronics Packaging
  • 2015
    Japan Institute of Electronics Packaging, Academic Plaza 5 years Award, 2015 JPCA Show/Academic Plaza, Japan Institute of Electronics Packaging
  • 2013
    Japan Institute of Electronics Packaging, 2013 Academic Plaza Award, 2013 JPCA Show/Academic Plaza, Japan Institute of Electronics Packaging
  • 2013
    11th International Conference on Ferrites 2013 (ICF11), ICF11, New Product & Novel Technology Award; Kazuhiro Hagita, Hiroki Kobayashi, Fumihiro Sato, Yuichiro Yazaki, Makoto Sonehara, Toshiro Sato, Tetsuro Watanabe, Nobuhiro Matsushita, Tomoharu Fujii, Hiroshi Shimizu, Kazutaka Kobayashi, "Magnetic Properties of Spin-sprayed Ferrite Film Deposited on Glass/Epoxy Build-up Layer in Organic Interposer Substrate", THE 11TH INTERNATIONAL CONFERENCE ON FERRITES, 17pP-51 (2013).
  • 2012
    IEEE Sensors 2012, IEEE Sensors 2012, Best Papers Award; N. Hirokubo, H. Komatsu, N. Hashimoto, M. Sonehara, T. Sato, "Wideband Visible Wavelength Range MEMS Fabry-Perot Tunable Filter with Calibration System", Proceedings of IEEE SENSORS 2012, pp.303-306 (2012).
  • 1999
    Magnetics Society of Japan, MSJ Distinguished Paper Award, T. Sato, S. Ikeda, K. Yamasawa, T. Mizoguchi, "Transmission-Line Low-Pass Filter Composed of Inner Copper Conductor Lines, Dielectric layeres, and Electrically Grounded Metallic Magnetic Layers", Journal of the Magnetics Society of Japan, Vol.23, No.4-2,pp.1653-1656 (1999).
  • 1994
    Institute of Electrical Engineers of Japan, Excellent Paper Presentation Award, Institute of Electrical Engineers of Japan

Paper

  • Fabrication of Fe-Based Nanocrystalline Powder-Pressed Magnetic Core and Application to Planar Reactor for Hundreds of kHz or Beyond
    Takanori Kanaya , Ryosuke Ohta, Makoto Sonehara , and Toshiro Sato
    IEEE Transactions on Magnetics, 59(11), #2801006 (6 pages), Nov. 2023
  • Development of an Optical Probe Current Sensor for Local and Narrow Area Measurement Using Magnetic Domain Reversal in Bismuth-Substituted Rare-Earth Iron Garnet Crystal
    Satoshi Sue, Mitsunori Miyamoto, Toshiya Kubo, Makoto Sonehara, and Toshiro Sato
    IEEE Transactions on Magnetics, 59(11), #4000506 (6 pages), Nov. 2023
  • Magnetic Properties of Soft Magnetic Powder/Epoxy Composite Sheet
    Hideki Oyama, Nanami Kawada, and Toshiro Sato
    IEEE Transactions on Magnetics, 59(11), #2001205 (5 pages), Nov. 2023
  • Crossed Anisotropy Multilayered Nanogranular Films Combining High Permeability, Ferromagnetic Resonance Frequency, and Resistivity
    Masayuki Naoe, Makoto Sonehara, Kousuke Miyaji, Toshiro Sato, Yasushi Endo, Sho Muroga, Nobukiyo Kobayashi, and Ken-Ichi Arai
    IEEE Transactions on Magnetics, 59(11), #2300305 (5 pages), Nov. 2023
  • Reduction of Alternating-Current Resistance and Heat Generation of Spiral Inductors with Magnetic Sealing Technique
    Kazuhiro Shimura, Takanori Kanaya, Shigeki Kobayashi, Mitsuhide Sato, Makoto Sonehara, Toshiro Sato, Tsutomu Mizuno
    IEEJ Transactions on Electrical and Electronic Engineering, 18(9), 1533-1543, Sep. 2023
  • A basic study on braking and regenerative braking torques for an axial gap type eddy current brake
    Naoki Morishita, Michiro Funaki, Yoshimi Kikuchi, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato
    INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS, 71(s1), S383-S392, Apr. 2023電子ジャーナル
  • Transient Characteristics of Cylindrical Magneto-rheological Fluid Brakes
    Hiroki Shiga , Kazuki Nagashima, Yoshimi Kikuchi, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato
    Proceedings of 2021 IEEE International Conference on Electrical, Control and Instrumentation Engineering, Kuala Lumpur, Malaysia, -4 pages, Nov. 2021
  • Considerations of DC/AC Eddy Current Brake Using Clad Material for Aircraft
    Kodai Kitahara, Kentaro Hori, Yoshimi Kikuchi, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato
    Proceedings of 2021 IEEE International Conference on Electrical, Control and Instrumentation Engineering, Kuala Lumpur, Malaysia, -5 pages, Nov. 2021
  • Considerations for Shear Stress in Cylindrical Magneto-rheological Fluid Brakes for Aircraft under High Temperature and in High Magnetic Fields
    Kazuki Nagashima, Hiroki Shiga, Yoshimi Kikuchi, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato
    Proceedings of 2021 IEEE International Conference on Electrical, Control and Instrumentation Engineering, Kuala Lumpur, Malaysia, -6 pages, Nov. 2021
  • Study of Effects of Magnetic Pole Arrangement on Braking Torque of Eddy Current Brakes
    Kentaro Hori, Daichi Mochizuki, Yosimi Kikuchi, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato
    Proceedings of 2021 IEEE International Conference on Electrical, Control and Instrumentation Engineering, Kuala Lumpur, Malaysia, -6 pages, Nov. 2021
  • Performance Comparison of Ferrite and Nanocrystalline Cores for Medium-Frequency Transformer of Dual Active Bridge DC-DC Converter
    Sakda Somkun, Toshiro Sato, Viboon Chunkag, Akekachai Pannawan, Pornnipa Nunocha and Tawat Suriwong
    Energies, 14(2407), 21 pages, Apr. 2021電子ジャーナル
  • Fundamental Study of Eddy Current Brakes by Using Magnetic Clad Material
    Kentaro Hori, Daichi Mochizuki, Yosimi Kikuchi, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato
    Proceedings of International Conference on Electrical Machines 2020 (ICEM2020), Virtual conference, Gothenburg, Sweden, Paper ID; SD-003123, 6 pages, Aug. 2020
  • Analysis and Examination of Eddy Current Brake for Aircraft Using Composite Disc
    Daichi Mochizuki, Kentaro Hori, Yoshimi Kikuchi, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato
    Proceedings of International Conference on Electrical Machines 2020 (ICEM2020), Virtual conference, Gothenburg, Sweden, Paper ID; SD-004898, 6 pages, Aug. 2020
  • Braking Torque and Time Constant in Aircraft Magneto-rheological Fluid Brake at High Temperature
    Hiroki Shiga, Yoshimi Kikuchi, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato
    Proceedings of International Conference on Electrical Machines 2020 (ICEM2020), Virtual conference, Gothenburg, Sweden, Paper ID; SD-006777, 5 pages, Aug. 2020
  • Fundamental Study of Magnetrorheological Fulid Brakes for Regional Jets
    T. Sumi, N. Sato, M. Sonehara, T. Sato, H. Wakiwaka and Y. Kikuchi
    Journal of the Japan Society of Applied Electromagnetics and Mechanics, 27(1), 122-127, May 2019
  • Integrated CMOS Switch Buck DC-DC Converter Fabricated in Organic Interposer with Embedded Magnetic Core Inductor
    T. Akiyama, S. Ishida, T. Shirasawa, T. Fukuoka, S. Hara, H. Yoshida, M. Sonehara, T. Sato, K. Miyaji
    Journal of the Magnetics Society of Japan, 43(3), 64-69, May 2019
  • Au–Sn Soldering Using a Micro-heater to Restrain the Excess Temperature Rise Inside the Package
    Hideaki Mizusaki, Toshiro Sato, Makoto Sonehara
    Proceedings of 2019 International Conference on Electronics Packaging (ICEP 2019), Niigata, Japan, P02, 6 pages, Apr. 2019
  • An 86% Eficiency, 20MHz, 3D-Integrated Buck Converter with Magnetic Core Inductor Embedded in Interposer Fabricated by Epoxy/Magnetic-Filler Composite Build-Up Sheet
    Takanobu Fukuoka, Yuki Karasawa, Tomoki Akiyama, Ryoutaro Oka, Shu Ishida, Tomohiro Shirasawa, Makoto Sonehara, Toshiro, Sato, Kousuke Miyaji
    Proceedings of the 34th Applied Power Electronics Conference and Exposition 2019 (APEC2019), 1561-1566, Mar. 2019
  • Enhancement of Faraday effect of transparent ferromagnetic Co-MgF2 granular film by introducing Fabry-Perot resonant structure
    Miyamoto M., Kubo T., Fujishiro Y., Shiota K., Sonehara M., Sato T.
    ELECTRICAL ENGINEERING IN JAPAN, 206(4), 3-10, Mar. 2019
  • Loss Reduction of LLC Resonant Converter using Magnetocoated Wire
    Tatsuya Yamamoto, Yasuyuki Konno, Kanako Sugimura, Toshiro Sato, Yinggang Bu, Tsutomu Mizuno
    IEEJ Journal of Industry Applications, 8(1), 51-56, Jan. 2019
  • Fabrication and Evaluation of Composite Magnetic Core Using Iron-Based Amorphous Alloy Powder with Different Particle Size Distributions
    Naoki Yabu, Kanako Sugimura, Makoto Sonehara, Toshiro Sato
    IEEE Transactions on Magnetics, 54(11), #2801605-1-#2801605-5, Nov. 2018
  • Novel Method for Making Surface Insulation Layer on Fe-Based Amorphous Alloy Powder by Surface-Modification using Two-Step Acid Solution Processing
    Kanako Sugimura, Naoki Yabu, Makoto Sonehara, Toshiro Sato
    IEEE Transactions on Magnetics, 54(11), #2801805-1-#2801805-5, Nov. 2018
  • Fabrication of Ferromagnetic Co–MgF2 Granular Film with High Transmittance and Large Faraday Effect for Optical Magnetic Field Sensor
    Mitsunori Miyamoto, Toshiya Kubo, Yuta Fujishiro, Kenta Shiota, Makoto Sonehara, Toshiro Sato
    IEEE Transactions on Magnetics, 54(11), #2501205-1-#2501205-5, Nov. 2018
  • Core-shell structured Mn-Zn-Fe ferrite/Fe-Si-Cr particles for magnetic composite cores with low loss
    Satoshi Mori, Takeshi Mitsuoka, Kanako Sugimura, Ryosuke Hirayama, Makoto Sonehara, Toshiro Sato, Nobuhiro Matsushita
    ADVANCED POWDER TECHNOLOGY, 29(6), 1481-1486, Jun. 2018
  • Pseudo-differential CMOS analog front-end circuit for wide-bandwidth optical probe current sensor
    Takaharu Uekura, Kousuke Oyanagi, Makoto Sonehara, Toshiro Sato, and Kousuke Miyaji
    Japanese Journal of Applied Physics, 57(04FF06), 1-6, Mar. 2018
  • Low permeability composite magnetic core transformer with high coupling coefficient and its application to PFM controlled quasi-resonant mode flyback-type DC-DC converter
    K. Sato, T. Sato, M. Sonehara, H. Takeuchi
    Journal of the Magnetics Society of Japan, 41(6), 132-139, Dec. 2017
  • Surface-Oxidized Amorphous Alloy Powder/Epoxy-Resin Composite Bulk Magnetic Core and Its Application to Megahertz Switching LLC Resonant Converter
    Kanako Sugimura, Daisuke Shibamoto, Naoki Yabu, Tatsuya Yamamoto, Makoto Sonehara, Toshiro Sato, Tsutomu Mizuno, and Hideaki Mizusaki
    IEEE Transactions on Magnetics, 53(11), #2801406-1-#2801406-6, Nov. 2017
  • Characterization of UHF Band LC Filter With RF Spiral Inductor Using Carbonyl-Iron Powder/Epoxy Composite Magnetic and Chip Capacitor
    Makoto Sonehara, Sota Yamaguchi, Yuki Miyajima, Toshiro Sato, Takeshi Inomata, and Yuji Ono
    IEEE Transactions on Magnetics, 53(11), #4002905-1-#4002905-5, Nov. 2017
  • Transient Response Improvement of Digitally Controlled DC-DC Converter with Feedforward Compensation
    Kosuke Sato, Toshiro Sato, Makoto Sonehara
    Proceedings of the International Telecommunications Energy Conference 2017 (INTELEC2017), 609-614, Oct. 2017
  • Fabrication and evaluation of dispersed-Ag nanoparticles-in-polyimide thin films
    Makoto Sonehara, Yuki Watanabe, Sota Yamaguchi, Takanori Kato, Yasuaki Yoshisaku, Toshiro Sato, and Eiji Itoh
    Japanese Journal of Applied Physics, 56(10S), 10PB05 (4 pages), Sep. 2017
  • High permeability and low loss of Ni-Zn-Fe ferrite/metal composite cores in high frequency region
    Satoshi Mori, Takeshi Mitsuoka, Makoto Sonehara, Toshiro Sato, Nobuhiro Matsushita
    AIP Advances, 7, 056657-1-7, Feb. 2017
  • Relative Estimation of Water Content for Flat-Type Inductive-Based Oil Palm Fruit Maturity Sensor
    Norhisam Misron, Nor Aziana Aliteh, Noor Hasmiza Harun, Kunihisa Tashiro, Toshiro Sato and Hiroyuki Wakiwaka
    Sensors, 17(1), 10page, Jan. 2017
  • Fundamental study of high Q-factor RF spiral inductor using carbonyl-iron/epoxy composite magnetic core
    Makoto Sonehara, Kazuaki Furihata, Jun Koguchi, Shingo Tanaka and Toshiro Sato
    IEEJ Transactions on Electrical and Electronic Engineering, 11(s1), S3-S8, Aug. 2016
  • Fundamental Study of Non-Contact Water Salinity Sensor by Using Electromagnetic Means for Seawater Desalination Plants
    Makoto Sonehara, Nguyen Van Toai, Toshiro Sato
    IEEE Transactions on Magnetics, 52(7), #4001604-1-#4001604-4, Jul. 2016
  • Formation of high electrical-resistivity thin surface layer on carbonyl-iron powder (CIP) and thermal stability of nanocrystalline structure and vortex magnetic structure of CIP
    K. Sugimura, Y. Miyajima, M. Sonehara, T. Sato, F. Hayashi, N. Zettsu, K. Teshima, and H. Mizusaki
    AIP Advances, American Institute of Physics, 6, 055932-1-055932-8, May 2016
  • Fabrication and Evaluation of Electromagnetic Defect Detector for Laser Welding Joint on Stainless Steel Pipe
    Makoto Sonehara, Fumiya Nagashima, Toshiro Sato, Kohei Yazaki, Noritaka Aota, Susumu Shimadu
    Proceedings of the ICST2015 (International Conference on Sensing Technology 2015), Auckland, New Zealand, 338-341, Dec. 2015
  • Transient Response Improvement of Digitally Controlled Buck-Type DC-DC Converter with Feedforward Compensator
    Kosuke Sato, Toshiro Sato, Makoto Sonehara
    Proceedings of the International Telecommunications Energy Conference 2015 (INTELEC2015), 1153-1157, Oct. 2015
  • Embedded Planar Power Inductor Technology for Package-level DC Power Grid
    Yuta Kondo, Yuichiro Yazaki, Makoto Sonehara, Toshiro Sato, Tetsuro Watanabe, Yuto Seino, Nobuhiro Matsushita, Tomoharu Fujii, Kazutaka Kobayashi, Hiroshi Shimizu, Yuki Yanagisawa, Teruki Someya, Hiroshi Fuketa, Makoto Takamiya, Takayasu Sakurai
    ICEP-IAAC 2015 Proceedings (2015 International Conference on Electronics Packaging & iMAPS All Asia Conference), 814-817, Apr. 2015
  • Control of Magnetic Moment in Uniaxial Anisotropy Magnetic Thin Film Taking Leakage Flux in RF Planar Spiral Inductors with Closed-Magnetic Core into Account
    Makoto Sonehara, Kenji Ikeda and Toshiro Sato
    ELECTRICAL ENGINEERING IN JAPAN, 191(2), 1-6, Apr. 2015電子ジャーナル
  • CMOS Switch Buck DC-DC Converter Fabricated in Organic Interposer with Embedded Zn-Fe Ferrite Core Inductor
    K. Hagita, Y. Yazaki, Y. Kondo, M. Sonehara, T. Sato, T. Fujii, K. Kobayashi, S. Nakazawa, H. Shimizu, T. Watanabe, Y. Seino, N, Matsushita, Y. Yanagihara, T. Someya, H. Fuketa, M. Takamiya, and T. Sakurai
    Journal of the Magnetics Society of Japan, 39(2), 71-79, Mar. 2015
  • Development of Optical Probe Current Sensor with Kerr Effect for Power Electronics
    Daiki Karasawa, Makoto Sonehara, Shin Kitazawa, Toshiro Sato
    IEEE Sensors 2014 Proceedings, Valencia, Spain, 1928-1931, Nov. 2014
  • Embedded Planar Power Inductor in an Organic Interposer for Package-Level DC Power Grid
    Yuichiro Yazaki, Kazuma Ishidate, Kazuhiro Hagita, Yuta Kondo, Saki Hattori, Makoto Sonehara, Toshiro Sato, Tetsuro Watanabe, Yuto Seino, and Nobuhiro Matsushita
    IEEE Transactions on Magnetics, 50(11), #8401304-1-#8401304-4, Nov. 2014WebofScienceリポジトリ電子ジャーナル
  • Efficiency Increase in On-Chip Buck Converter by Introduction of High Permeability Material to Inductor on Interposer
    H. Fuketa, Y. Shinozuka, K. Ishida, M. Takamiya, T. Fujii, H. Shimizu, K. Kobayashi, T. Sato, T. Sakurai
    Journal of the Japan Society of Powder and Powder Metallurgy, 61(s1), S340-S342, May 2014
  • Wafer level package by using post dicing process
    Noriyuki Fujimori, Takatoshi Igarashi, Takahiro Shimohata, Takuro Suyama, Kazuhiro Yoshida, Yusuke Nakagawa, Tsutomu Nakamura, and Toshiro Sato
    ICEP2014 Proceedings (International Conference on Electronics Packaging 2014), 34-38, Apr. 2014
  • Magnetic and electronic properties of bimagnetic materials comprising cobalt particles within hollow silica decorated with magnetite nanoparticles
    T. Okada, Y. Gonzalez-Alfaro, A. Espinosa, N. Watanabe, T. Haeiwa, M. Sonehara, S. Mishima, T. Sato, A. Munoz-Noval, P. Aranda, M. Garcia-Hernandez, E. Ruiz-Hitzky
    JOURNAL OF APPLIED PHYSICS, 114(12), 124304, Sep. 2013WebofScienceリポジトリ電子ジャーナル
  • Wideband Visible Wavelength Range MEMS Fabry-Perot Tunable Filter with Highly Accurate Calibration System
    Nozomu Hirokubo, Hiroshi Komatsu, Nobuaki Hashimoto, Makoto Sonehara, and Toshiro Sato
    IEEE Sensors Journal, 13(8), 2930-2936, Aug. 2013
  • Influence of Initial Surface Roughness on Severe Wear Volume for SUS304 Austenitic Stainless Steels
    A. Kawamura, K. Ishida, K. Okada, T. Sato
    International Journal of Chemical, Materials Science and Engineering, 7(11), 126-130, Jul. 2013
  • Characterization of Tunable Magnetic Sensor Using Bias Magnetic Field of a Hard Magnetic Film Magnetized by Pulsed-Magnetic Field
    M. Sonehara, H. Kamada, S. Iida, T. Sato
    IEEE Transactions on Magnetics, 49(7), 3854-3857, Jul. 2013WebofScienceリポジトリ電子ジャーナル
  • Carbonyl-Iron/Epoxy Composite Magnetic Core for Planar Power Inductor Used in Package-Level Power Grid
    Y. Sugawa, K. Ishidate, M. Sonehara, T. Sato
    IEEE Transactions on Magnetics, 49(7), 4172-4175, Jul. 2013WebofScienceリポジトリ電子ジャーナル
  • 90% High Efficiency and 100-W/cm3 High Power Density Integrated DC-DC Converter for Cellular Phones
    Satoshi Sugahara, Kouhei Yamada, Masaharu Edo, Toshiro Sato, and Kiyohito Yamasawa
    IEEE Transactions on Power Electronics, 28(4), 1994-2004, Apr. 2013
  • Fabrication of a Zn ferrite thick film planar power inductor for DC-DC converter LSI package
    S. Okazaki, A. Takeuchi, A. Takeshima, M. Sonehara, T. Sato, N. Matsushita
    Electronics and Communications in Japan, 96(4), 53-60, Apr. 2013
  • Wideband visible wavelength range MEMS Fabry-Perot Tunable Filter with Ag alloy mirror
    N. Hirokubo, H. Komatsu, N. Hashimoto, M. Sonehara, T. Sato
    Electronics and Communications in Japan, 96(3), 17-23, Mar. 2013
  • A Possibility of Magnetic Field Biasing Tunable Inductive Device Using a Hard Magnetic Film Magnetized by Pulsed-Magnetic Field
    Yosuke Obinata, Megumi Yuki, Makoto Sonehara, Yutaka Kuramoto, Kunihiko Suzuki, Toshiro Sato
    IEEE Transactions on Magnetics, 49(3), 978-981, Mar. 2013WebofScienceリポジトリ電子ジャーナル
  • Relation Between High-Frequency Properties and Direction of Anisotropy Magnetic Field in Magnetic Thin Film for RF Inductor Applications
    Makoto Sonehara, Toshiro Sato
    IEEE Transactions on Magnetics, 48(11), 4515-4517, Nov. 2012WebofScienceリポジトリ電子ジャーナル
  • Wideband Visible Wavelength Range MEMS Fabry-Perot Tunable Filter with Calibration System
    N. Hirokubo, H. Komatsu, N. Hashimoto, M. Sonehara, T. Sato
    Proceedings of IEEE SENSORS 2012, 303-306, Oct. 2012
  • Planar Power Inductor with Magnetic Film for Embedded LSI Package
    Tomoharu Fujii, Kazutaka Kobayashi, Hiroshi Shimizu, Shinji Nakazawa, Toshiro Sato, Fumihiro Sato, Hiroki Kobayashi
    45th International Symposium on Microelectronics 2012 Proceedings, 464~472, Sep. 2012
  • Optical Probe Current Sensor Module using the Kerr Effect of Exchange-coupled Magnetic Film and its Application to IGBT Switching Current Measurements
    K. Ogawa, S. Suzuki, M. Sonehara, T. Sato, K. Asanuma
    International Journal on Smart Sensing and Intelligent Systems, 5(2), 347-361, Jun. 2012
  • Optical probe current sensor module using the Kerr effect and its application to IGBT switching current measurements
    Keisuke Ogawa,Shin Suzuki,Makoto Sonehara,Toshiro Sato,Kazushi Asanuma
    Proceedings of 5th International Conference on Sensing Technology 2011 (ICST2011), Palmerston North, New Zealand, Nov. 2011
  • Increase of Q-Factor of RF Magnetic Thin Film Inductor by Introducing Slit-Patterned Magnetic Thin Film and Multiline-Conductor Spiral Coil
    Takayuki Maruyama, Yosuke Obinata, Makoto Sonehara, Kenji Ikeda, Toshiro Sato
    IEEE Transactions on Magnetics, 47(10), 3196-3199, Oct. 2011WebofScienceリポジトリ電子ジャーナル
  • Fabrication of Planar Power Inductor for Embedded Passives in LSI Package for Hundreds Megahertz Switching DC-DC Buck Converter
    Hideyuki Ito, Asako Takeuchi, Shinya Okazaki, Hiroki Kobayashi, Yuichiro Sugawa, Akihiro Takeshima, Makoto Sonehara, Nobuhiro Matsushita, Toshiro Sato
    IEEE Transactions on Magnetics, 47(10), 3204-3207, Oct. 2011WebofScienceリポジトリ電子ジャーナル
  • Characteristic Analysis of a Micro DC-DC Converter for Portable Electronic Devices and an Improvement of Transient Response Characteristic
    S. Sugahara, K. Yamada, H. Nishio, M. Edo, T. Sato, and K. Yamasawa
    ELECTRICAL ENGINEERING IN JAPAN, 175(3), 56-64, Mar. 2011
  • Crystal Orientation of Co35Fe65 Thin Film for the GHz Frequency Use with More Than 10 GHz
    Makoto Munakata, Shin-ichi Aoqui, Masatoshi Ohkoshi, Koichiro Maki, Makoto Sonehara, Kenji Ikeda, Toshiro Sato
    Journal of the Magnetics Society of Japan, 34(3), 248-253, May 2010
  • Strain sensor using stress-magnetoresistance effect of Ni–Fe/Mn–Ir exchange-coupled magnetic film
    M. Sonehara, T. Shinohara, T. Sato, K. Yamasawa, Y. Miura
    JOURNAL OF APPLIED PHYSICS, 107(9), 3 pages, May 2010WebofScienceリポジトリ電子ジャーナル
  • Development of an Electromagnetic Wave Shielding Textile by Electroless Ni-Based Alloy Plating
    M. Sonehara, S. Noguchi, T. Kurashina, T. Sato, K. Yamasawa, Y. Miura
    IEEE Transactions on Magnetics, 45(10), 4173-4175, Oct. 2009WebofScienceリポジトリ電子ジャーナル
  • Cross-Talk Suppression in High-Density Printed Circuit Boards Using Magnetic Composite Filled in Spacing Between Signal Lines
    S. Kayama, M. Sonehara, T. Sato, K. Yamasawa, Y. Miura
    IEEE Transactions on Magnetics, 45(10), 4801-4803, Oct. 2009WebofScienceリポジトリ電子ジャーナル
  • Optical/High-frequency Applications of Functional Magnetic Materials
    Mitsuteru Inoue, Toshiro Sato
    IEEJ Transactions on Electrical and Electronic Engineering, 4(1), 6-7, Feb. 2009
  • Fundamental study of optical probe current sensor using Kerr effect of single magnetic domain film
    M. Sonehara, K. Asanuma, N. Otani, T. Goto, Y. Kikuchi, T. Sato, K. Yamasawa, Y. Miura
    Proceedings of the 18th IEEE Conference on Sensors (IEEE Sensors 2009), 1232-1237, 2009
  • CoFeSio/SiO2 multilayer granular films with very narrow ferromagnetic resonant linewidth
    K. Ikeda, T. Suzuki, T. Sato
    IEEE Transactions on Magnetics, 45(10), 4290-4293, 2009WebofScienceリポジトリ電子ジャーナル
  • FeNiSiO/SiO2 multi-layer granular magnetic films with high-resistivity
    K. Ikeda, T. Suzuki, T. Sato
    Transactions of the Materials Research Society of Japan, 34(1), 9-13, 2009リポジトリ
  • Low Power Consumption and High Power Density Integrated DC-DC Converter for Portable Equipments
    S. Sugahara, K. Yamada, M. Edo, T. Sato, K. Yamasawa
    Proceedings of the IEEE Asian Solid-State Circuit Conference (ASSCC2008), 149-152, 2008
  • Synthesis and Characterization of Temperature Sensitive Li-Zn-Cu Ferrite
    M. Naoe, T. Omura, T. Sato, K. Yamasawa, Y. Miura
    Japanese Journal of Applied Physics, 47(1), 550-553, 2008
  • Magnetic properties of Co-Sm amorphous films in GHz band
    K. Ikeda, T. Suzuki, T. Sato
    Journal of the Magnetics Society of Japan, 32(3), 179-186, 2008
  • Basic investigation of microtemperature sensor by means of a novel transmission-line technique using a temperature-sensitive Li-Zn-Cu ferrite substrate
    M. Naoe, R. Takahashi, T. Omura, Y. Hotta, T. Sato, K. Yamasawa, Y. Miura
    Journal of the Magnetism and Magnetic Materials, 320(20), 949-953, 2008
  • Suppression of Sm Segregation and Improvement in Thermal Stability by Introducing Ru Underlayer in Co-Sm Amorphous Films
    K. Ikeda, T. Suzuki, T. Sato
    IEEE Transactions on Magnetics, 44(11), 3906-3909, 2008
  • Preparation and Characterization of Nanofiber Nonwoven Textile for Electromagnetic Wave Shielding
    M. Sonehara, T. Sato, M. Takasaki, H. Konishi, K. Yamasawa, Y. Miura
    IEEE Transactions on Magnetics, 44(11), 3107-3110, 2008
  • Characterization of novel chip temperature-sensing device using Mn-substituted Li-Zn-Cu ferrite
    M. Naoe, M. Oishi, S. Okazaki, T. Sato, K. Yamasawa, Y. Miura
    IEEE Transactions on Magnetics, 44(11), 2985-2988, 2008
  • High efficiency PWM controlled micro DC-DC converter for portable electronic equipments
    S. Sugahara, K. Yamada, T. Kawashima, M. Edo, T. Sato, K. Yamasawa
    IEICE TRANSACTIONS ON COMMUNICATIONS, E91-B(11), 3704-3711, 2008
  • Ferromagnetic Resonance Simulation of Mn-Ir/Fe-Si Exchange-Coupled Film on Basis of LLG Equation Taking Exchange-Stiffness Dispersion Model into Account
    M. Sonehara, T. Ishikawa, K. Inagaki, T. Sato, K. Yamasawa, Y. Miura, H. Fujiwara
    Journal of the Magnetics Society of Japan, 31(3), 153-158, 2007
  • Analysis of Directional Coupler Using Magnetic/Dielectric Hybrid Transmission-Line for Cellular Phone
    K. Takizawa, S. Mizuta, M. Nakazawa, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, U. Uehara, M. Munakata, M. Yagi
    2006 Asia-Pacific Microwave Conference Proceedings, 2, 1384-1387, 2006
  • Relation Between Microwave Complex Permeability and Ferromagnetic Fe-Si Layer Thickness in Mn-Ir/Fe-Si Exchange-Coupled Film
    M. Sonehara, T. Sugiyama, T. Ishikawa, K. Inagaki, T. Sato, K. Yamasawa, Y. Miura
    IEEE Transactions on Magnetics, 42(10), 2984-2986, 2006WebofScience
  • MnIr/FeSi exchange-coupled multilayer film with plural ferromagnetic resonance absorptions for wideband noise filter
    Sonehara, M. Ishikawa, T. Sugiyama, T. Sato, T. Yamasawa, K. Miura, Y.
    JOURNAL OF APPLIED PHYSICS, 99, 08M309, 2006WebofScienceリポジトリ電子ジャーナル
  • Suppression of insertion loss by slit patterning of a magnetic film in a CoFeB/polyimide hybrid thin-film coplanar line for a rf impedance matching device
    Nakayama, H. Yamamoto, Y. Mizoguchi, Y. Nakazawa, M. Sato, T. Yamasawa, K. Miura, Y. Miyake, Y. Akie,M . Uehara, Y. Munakata, M. Yagi, M.
    JOURNAL OF APPLIED PHYSICS, 99, 08P508, 2006WebofScienceリポジトリ電子ジャーナル
  • Development of an Integrated RF Impedance Matching Device with LPF Function using a CoFeB Magnetic/Polyimide Dielectric Hybrid Thin-Fim Coplanar-Line
    H. Nakayama, T. Yamamoto, Y. Mizoguchi, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara, M. Munakata
    2005 Asia-Pacific Microwave Conference Proceedings, 720-722, 2005
  • Directional Coupler Composed of CoFeB Metallic Magnetic Film/Polyimide Dielectric Film Hybrid Transmission-Line
    K. Takizawa, M. Nakazawa, T. Sato, K. Yamasawa, Y. Miura, M. Munakata, M. Yagi
    2005 Asia-Pacific Microwave Conference Proceedings, 2819-2822, 2005
  • A planar inductor using Mn-Zn ferrite/polyimide composite thick film for low-voltage and large-current dc-dc converter
    I. Kowase, T. Sato, K. Yamasawa, Y. Miura
    IEEE Transactions on Magnetics, 41(10), 3991-3993, 2005WebofScience
  • A Thin Film Spiral Microstrip Transmission-Line Using CoZrNb Soft Magnetic Thin Film for a Quarter Wavelength Transformer
    H. Suzuki, N. Sugiyama, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara
    IEEE Transactions on Magnetics, 41(10), 3574-3576, 2005WebofScience
  • A new wideband common-mode noise filter consisting of Mn-Zn ferrite core and copper/polyimide tape wound coil
    K. Yanagisawa, F. Zhang, T. Sato, K. Yamasawa, Y. Miura
    IEEE Transactions on Magnetics, 41(10), 3571-3573, 2005WebofScience
  • Preparation and Characterization of Mn-Ir/Fe-Si Exchange-Coupled Multilayer Film With Ru Underlayer for High-Frequency Applications
    M. Sonehara, T. Sugiyama, T. Sato, K. Yamasawa, Y. Miura
    IEEE Transactions on Magnetics, 41(10), 3511-3513, 2005WebofScience
  • Fabrication of a common- mode noise filter for balanced-mode signal transmission using Mn-Zn ferrite particle/polyimide composite thick film
    T. Sato, T. Kokai, M. Moroishi, K. Yamasawa, T. Sakuma, H. Karasawa, K. Hirasawa
    IEEJ Transactions on Fundamentals and Meterials, 124(1), 91-97, 2004
  • FeSi/IrMn Exchange-Coupled Multilayer Film with Plural FMR absorptions
    M. Sonehara, T. Sato, K. Yamasawa, Y. Miura, M. Yamaguchi
    Transactions of the Materials Research Society of Japan, 29(4), 1735-1738, 2004
  • Amplitude modulation effect of dc-dc converter noise on CMOS logic signal transmission on microstrip PCB
    K.-I. Nishijima, T. Sato, K. Yamasawa
    Proceedings of the IEEE International Telecommunications Energy Conference (INTELEC2003), 510-514, 2003
  • Spiral type transmission line with a Mn-Zn ferrite core
    T. Sato, K. Sato, K. Yamasawa, F. Zhang, K. Yanagisawa
    IEEE Transactions on Magnetics, 39(5), 3205-3207, 2003WebofScience
  • A study on hybrid thin film microstrip line composed of CoZrNb metallic magnetic film and Polyimide dielectric film
    T. Sato, S. Ikeda, K. Takizawa, and K. Yamasawa
    2002 Asia-Pacific Microwave Conference Proceedings, 602-605, 2002
  • Relation between power dissipation and signal transmission characteristic in CoZrNb/Polyimide hybrid microstrip line
    T. Sato, S. Ikeda, H. Nakayama, K. Takizawa, and K. Yamasawa
    Transactions of the Magnetics Society of Japan, 2(5), 377-383, 2002
  • Measurement of the source impedance of conducted emission using mode separable LISN: Conducted emission of a switching power supply
    J. Miyashita, M. Mitsuzawa, T. Karube, K. Yamasawa, T. Sato
    ELECTRICAL ENGINEERING IN JAPAN, 139(2), 72-78, 2002WebofScience
  • FeCoBN magnetic thin film inductor for MHz switching micro DC-DC converters
    T. Sato, K. Yamasawa, H. Tomita, T. Inoue, T. Mizoguchi
    IEEJ Transactions on Industrial Applications, 121-D, 84-89, 2001
  • A high sensitive multilayered parametric magnetic sensor
    K. Karasawa, H. Matsushima, T. Sato, K. Yamasawa, Y. Tanno
    Proceedings of the International Conference on Electrical Engineering (ICEE 2001), 3, 1677-1680, 2001
  • Multilayered transformer utilizing Mn-Zn ferrite and its application to a forward-type DC-DC converter
    T. Sato, H. Yokoyama, K. Yamasawa, K. Toya, S. Kobayashi, T. Minamisawa
    ELECTRICAL ENGINEERING IN JAPAN, 135(4), 1-8, 2001WebofScience
  • A new multilayered common-mode filter on Ni-Zn ferrite substrate
    T. Sato, S. Ikeda, Y. Hara, K. Yamasawa, T. Sakuma
    IEEE Transactions on Magnetics, 37(4), 2900-2902, 2001WebofScience
  • A thin film type magnetic/dielectric hybrid transmission-line with a large wavelength shortening
    S. Ikeda, T. Sato, A. Ohshiro, K. Yamasawa, T. Sakuma
    IEEE Transactions on Magnetics, 37(4), 2903-2904, 2001WebofScience
  • A study of parametric models applied to in-service life prediction of dry vacuum pump
    A. Ishida, S. Konishi, T. Sato, K. Yamasawa
    Proceedings of IMACS Symposium on MATHEMATICAL MODELLING, 1, 111-114, 2000
  • Planar power inductor using FeCoBN magnetic film with high saturation magnetization and high electrical resistivity
    T. Sato, K. Yamasawa, H. Tomita, T. Inoue, T. Mizoguchi
    International Power Electronics Conference 2000 Proceedings (IPEC2000), 303-308, 2000
  • Thin film inductor for micro switching converters using a high resistive Fe-Zr-O film
    Y. Sasaki, E. Komai, T. Hatanai, T. Sato, K. Yamasawa
    International Power Electronics Conference 2000 Proceedings (IPEC2000), 315-319, 2000
  • Device simulations of magnetic/dielectric hybrid transmission-lines by using electromagnetic field analysis
    S. Ikeda, N. Shirai, K. Ito, A. Hirano, T. Sato, K. Yamasawa
    Proceedings of the 2nd Magneto-Electronics International Symposium (Nagano magel’99), 399-402, 1999
  • A small and thin common mode choke composed of multilayered transformer structure with high coupling coefficient
    Y. Hara, T. Sato, K. Yamasawa, K. Toya, S. Kobayashi, T. Minamisawa
    Proceedings of the 2nd Magneto-Electronics International Symposium (Nagano magel’99), 395-398, 1999
  • A new multilayered parametric magnetic sensor
    K. Karasawa, H. Matsushima, Y. Tanno, T. Sato, K. Yamasawa
    Proceedings of the 2nd Magneto-Electronics International Symposium (Nagano magel’99), 319-322, 1999
  • A novel transmission-line type high frequency transformer using a fine-grain Mn-Zn ferrite
    T. Inoue, M. Furukawa, T. Sato, K. Yamasawa, T. Takahashi, Y. Sasaki, Y. Yamamoto, T. Hatanai, A. Makino
    IEEE Transactions on Magnetics, 35(5), 3538-3540, 1999WebofScience
  • Sputter-deposited FeCoBC/AlNx multilayered film for wet-etching process
    H. Tomita, T. Inoue, T. Mizoguchi, T. Sato
    IEEE Transactions on Magnetics, 35(5), 3571-3573, 1999WebofScience
  • Frequency-modulation type magnetic field sensor using transmission-line magnetic device
    S. Ikeda, T. Sato, K. Yamasawa
    IEEE Transactions on Magnetics, 35(5), 3631-3633, 1999WebofScience
  • Transmission-line low pass filter for switching power supplies
    T. Sato, S. Ikeda, K. Yamasawa, T. Mizoguchi
    Record of the IEEE Power Electronics Specialists Conference (PESC’98), 1972-1978, 1998
  • Operation characteristics of a buck/boost converter using a layered inductor with high resistive Fe(Co-Fe)-M-O (M=Hf, Zr, rare-earth) films
    Y. Sasaki, S. Morita, T. Hatanai, A. Makino, T. Sato, K. Yamasawa
    Record of the IEEE Power Electronics Specialists Conference (PESC’98), 1555-1560, 1998
  • A new multi-polar flat transformer and its application to a planar type DC/DC converter
    T. Minamisawa, T. Sato, K. Yamasawa
    Record of the IEEE Power Electronics Specialists Conference (PESC’98), 1548-1554, 1998
  • The optimum chip size of a thin film reactor for a high-efficiency operation of a micro dc-dc converter
    S. Sugahara, M. Edo, T. Sato, K. Yamasawa
    Record of the IEEE Power Electronics Specialists Conference (PESC’98), 1499-1503, 1998
  • New applications of nanocrystalline Fe(Co-Fe)-Hf-O magnetic films to micromagnetic devices
    T. Sato, Y. Miura, S. Matumura, K. Yamasawa, S. Morita, Y. Sasaki, T. Hatanai, A. Makino
    JOURNAL OF APPLIED PHYSICS, 83(11), 6658-6660, 1998WebofScience電子ジャーナル
  • The effect of magnetic film structure on the inductance of a planar inductor
    Inoue, T; Nishijima, K; Yatabe, S; Mizoguchi, T; Sato, T
    IEEE Transactions on Magnetics, 34(4), 1372-1374, 1998WebofScience電子ジャーナル
  • Application of nanocrystalline Fe (or Co-Fe)-Hf-O magnetic films with high electrical resistivity to micro DC-DC converters
    T. Sato, E. Komai, K. Yamasawa, T. Hatanai, A. Makino
    IEEE Transactions on Magnetics, 33(5), 3310-3312, 1997WebofScience
  • High frequency soft magnetic properties of nanocrystalline Fe-(Co)-Hf-O films with high electrical resistivity and their application to micro DC-DC converter
    Y. Sasaki, S. Morita, T. Hatanai, A. Makino, T. Sato, K. Yamasawa
    Nanostructured Materials, 8(8), 1025-1032, 1997WebofScience電子ジャーナル
  • 5MHz switching micro dc-dc converter using planar inductor
    T. Sato, T. Inoue, H. Tomita, S. Yatabe, K. Nishijima, Y. Tokai, M. Nameki, N. Saito, T. Mizoguchi
    Proceedings of the IEEE International Telecommunications Energy Conference (INTELEC’96), 485-490, 1996
  • Epitaxial Fe72Co28(112) films grown on MgO(100) substrates
    H. Tomita, A. Sawabe, T. Sato, T. Mizoguchi
    Japanese Journal of Applied Physics, 34, 1851-1854, 1995
  • Simulation of Micro Magnetic Devices
    T. Sato, T. Mizoguchi, M. Sahashi
    IEEE Translation Journal on Magnetics in Japan, 9(4), 68-75, Apr. 1994
  • A magnetic thin film inductor and its application to a MHz switching dc-dc converter
    T. Sato, H. Tomita, A. Sawabe, T. Inoue, T. Mizoguchi, M. Sahashi
    IEEE Transactions on Magnetics, 30(2), 217-223, 1994
  • Oblique field annealing of CoZrNb amorphous magnetic thin film
    H. Tomita, T. Sato, T. Mizoguchi
    IEEE Transactions on Magnetics, 30(2), 1336-1339, 1994
  • Formula for dynamic power loss in ferrite cores taking into account displacement current
    Y. Sakaki, M. Yoshida, T. Sato
    IEEE Transactions on Magnetics, 29(6), 3517-3519, 1993
  • Planar inductor for very small dc-dc converters
    T. Sato, M. Hasegawa, T. Mizoguchi, M. Sahashi
    IEICE TRANSACTIONS ON COMMUNICATIONS, E75-B(11), 1186-1191, 1992
  • Study of high power planar inductor
    T. Sato, M. Hasegawa, T. Mizoguchi, M. Sahashi
    IEEE Transactions on Magnetics, 27(6), 5277-5279, 1991
  • Physical meaning of equivalent loss resistance of magnetic cores
    T. Sato, Y. Sakaki
    IEEE Transactions on Magnetics, 26(5), 2894-2897, 1990
  • Magnetization Mechanism of Polycrystalline Mn-Zn Ferrite in MHz Band
    T. Sato, Y. Sakaki
    IEEE Translation Journal on Magnetics in Japan, 3(7), 531-533, Jul. 1988
  • Discussion on eddy current loss under square wave voltage excitation
    T. Sato, Y. Sakaki
    IEEE Transactions on Magnetics, 24(6), 2904-2906, 1988
  • Very low loss ultrathin Co based amorphous ribbon cores
    M. Yagi, T. Sato, Y. Sakaki, T. Sawa, K. Inomata
    JOURNAL OF APPLIED PHYSICS, 64(10), 6050-6052, 1988
  • 100kHz - 10MHz iron loss measuring system
    T. Sato, Y. Sakaki
    IEEE Transactions on Magnetics, 23(5), 2593-2595, 1987
  • Large signal eddy current losses beyond 100kHz
    Y. Sakaki, T. Sato
    IEEE Transactions on Magnetics, 20(5), 1487-1489, 1984
  • A high frequency iron loss measuring system
    T. Katane, T. Yamaguchi, T. Ito, T. Sato, Y. Sakaki
    IEEE Transactions on Magnetics, 20(5), 1729-1731, 1984
  • Loss evaluation in converter transformer cores
    Y. Sakaki, T. Sato, T. Ito
    Proceedings of the IEEE International Telecommunications Energy Conference (INTELEC’83), 408-412, 1983

MISC

  • Technology Trend in Magnetics, Special Issue Review (10)
    H. Matsuki, K. Ishiyama, T. Sato, K. Kobayashi
    IEEJ Transactions on Fundamentals and Materials, 129(2), 81-83, 2009

Lectures, oral presentations, etc.

  • Fabrication of Planar Power Inductor for beyond 10MHz Using Fe-based Composite Magnetic Core
    R. Miyata; S. Kimura; N. Kawada; T. Minamisawa; M. Sonehara; K. Miyaji; T. Sato
    IEEE International Magnetics Conference 2023 (INTERMAG2023), AR-06, Sendai, Japan, May 2023
  • Development of an Optical Probe Current Sensor for Local and Narrow Area Measurement Using Magnetic Domain Reversal in Bi-Substituted Rare-Earth Iron Garnet Crystal
    S. Sue; M. Miyamoto; T. Kubo; M. Sonehara; T. Sato
    IEEE International Magnetics Conference 2023 (INTERMAG2023), AU-03, Sendai, Japan, May 2023
  • Fabrication of Fe-based nanocrystalline powder pressed magnetic core with low coercivity and small iron loss
    T. Kanaya; R. Ohta; M. Sonehara; T. Sato
    IEEE International Magnetics Conference 2023 (INTERMAG2023), BW-07, Sendai, Japan, May 2023
  • Magnetic Properties of Soft Magnetic Powder/Epoxy Composite Sheet
    H. Ooyama; N. Kawada; T. Sato
    IEEE International Magnetics Conference 2023 (INTERMAG2023), CF-08, Sendai, Japan, May 2023
  • Crossed Anisotropy Multilayered Nanogranular Films Combining High Permeability, Ferromagnetic Resonance Frequency, and Resistivity
    M. Naoe; M. Sonehara; K. Miyaji; T. Sato; Y. Endo; N. Kobayashi; K. Arai
    IEEE International Magnetics Conference 2023 (INTERMAG2023), EV-12, Sendai, Japan, May 2023
  • A Collaboration from High Frequency Soft Magnetic Materials to Integrated Circuit Design for beyond 10MHz Switching Power Supply (Invited)
    K. Miyaji; M. Sonehara; T. Sato
    IEEE International Magnetics Conference 2023 (INTERMAG2023), FA-06, Sendai, Japan, May 2023
  • Development of anisotropic nanocrystalline ribbon core and powdered core for high frequency transformers and inductors (Invited)
    T. Sato; T. Tada; T. Kanaya; M. Sonehara; T. Mizuno
    IEEE International Magnetics Conference 2023 (INTERMAG2023), HA-04, Sendai, Japan, May 2023
  • Fabrication and evaluation of anisotropic Fe-based nanocrystal alloy ribbons
    Tomoya Tada, Makoto Sonehara, Toshiro Sato
    IEEE Shin-etsu Section Student Branch (SSB) Online Poster Session 2022, Dec. 2022
  • Reducing Heat Generation in a Boost Inductor Using a Magnetic Tape
    Kazuhiro SHIMURA, Takanori KANAYA, Syuichi HOSHINA, Shigeki KOBAYASHI, Mitsuhide SATO, Makoto SONEHARA, Toshiro SATO, Tsutomu MIZUNO
    20th International Symposium on Applied Electromagnetics and Mechanics 2022 (ISEM2022), Jun. 2022
  • A basic study braking and regenerative braking torques for an axial gap type eddy current brake
    Naoki Morishita, Michiro Funaki, Hiroyuki Wakiwaka, Makoto Sonehara, Toshiro Sato, Yoshimi Kikuchi
    20th International Symposium on Applied Electromagnetics and Mechanics 2022 (ISEM2022), Jun. 2022
  • A basic study on anti-skid braking using cylindrical magnetrorheological fluid brakes
    Takeshi Hikosaka, Makoto Sonehara, Tosiro Sato, Hiroyuki Wakiwaka, Yoshimi Kikuchi
    20th International Symposium on Applied Electromagnetics and Mechanics 2022 (ISEM2022), Jun. 2022
  • Fabrication of iron-based amorphous spherical powder pressed magnetic core with low coercivity and low iron loss
    Takanori Kanaya, Makoto Sonehara, Toshiro Sato
    IEEE Shin-etsu Section Student Branch (SSB) Online Poster Session 2021, Dec. 2021
  • Basic investigation of planar power inductor for 15MHz switching DC-DC converter
    Soichi Kimura, Makoto Sonehara, Toshiro Sato
    IEEE Shin-etsu Section Student Branch (SSB) Online Poster Session 2021, Dec. 2021
  • Basic investigation of coupled-line EMI filter for beyond-MHz switching power supplies using high permeability and high loss magnetic material
    Eiichi Yoshida, Makoto Sonehara, Toshiro Sato
    IEEE Shin-etsu Section Student Branch (SSB) Online Poster Session 2021, Dec. 2021
  • Millimeter-Wave Electromagnetic Simulation for Conductive Paste Bonding Using Single Fullerene Shaped Model
    Nozomi Shimoishizaka , Kousuke Hishida, Makoto Sonehara, Junpei Mochiduki, Toshiro Sato
    EM-NANO2021 (The Eighth International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies), Toyama, Japan, Paper No.:P2-15, Jun. 2021
  • Basic investigation of LLC-LC resonant DC-DC converter using Fe-based metal composite bulk core transformer
    Kozen Sato, Takayuki Denda, Takaaki Sako, Toshitaka Minamisawa, Toshiro Sato, Makoto Sonehara
    International Magnetics Conference 2020 (INTERMAG2020), Montréal, Canada (cancelled due to COVID-19), Paper Number: BH-04, Apr. 2020
  • Fabrication of Fe-based soft magnetic flake powders for flake-composite magnetic sheet core
    Yuan Ying, Yutaro Inagaki, Ryu Nomata, Makoto Sonehara, and Toshiro Sato
    International Magnetics Conference 2020 (INTERMAG2020), Montréal, Canada (cancelled due to COVID-19), Paper Number: BS-09, Apr. 2020
  • Fundamental Study of Power Inductor with Carbonyl- Iron Powder/Epoxy Composite Magnetic Core for Several Hundred MHz Switching Convertor in POL Supply
    Makoto Sonehara, Sota Yamaguchi, Toshiro Sato
    International Magnetics Conference 2020 (INTERMAG2020), Montréal, Canada (cancelled due to COVID-19), Paper Number: GQ-13, Apr. 2020
  • Fe-based Composite Magnetic Core for GaN Power Device Switching Converter (Invited)
    Toshiro Sato
    International Symposium on Advanced Power Packaging 2019 (ISAPP2019), Osaka, Japan, Oct. 2019
  • Fe-based Metal composite Magnetic Core and Its Application to High-frequency Switching DC-DC Converter (Invited)
    Toshiro Sato, Tsutomu Mizuno, Makoto Sonehara, Kousuke Miyaji, Tsuyoshi Funaki, Takaaki Ibuchi
    2018 International Workshop on Power Supply On Chip, 4-1, NCTU, Hsinchu, Taiwan, Oct. 2018, IEEE Power Electronics Society
  • Fundamental Study on Eddy Current Braking Using DC/AC Excitaion Methods for Regional Jets
    Norihiro Sato, Taichiro Sumi, Makoto Sonehara, Toshiro Sato, Hiroyuki Wakiwaka, Yoshimi Kikuchi
    Asia-Pacific Symposium on Applied Electromagnetics and Mechanics (APSAEM 2018) , Yogyakarta, INDONESIA, Jul. 2018
  • Fundamental Study on Magnetorheological Fluid Brakes for Regional Jets
    Taichiro Sumi, Norihiro Sato, Makoto Sonehara, Toshiro Sato, Hiroyuki Wakiwaka, Yoshimi Kikuchi
    Asia-Pacific Symposium on Applied Electromagnetics and Mechanics (APSAEM 2018) , Yogyakarta, INDONESIA, Jul. 2018
  • Fabrication and evaluation of composite magnetic core using iron-based amorphous alloy powder with different particle-size distribution
    Naoki Yabu, Kanako Sugimura, Yutaro Inagaki, Daiki Ueda, Makoto Sonehara, Toshiro Sato
    International Magnetics Conference 2018 (INTERMAG2018), Singapore, Apr. 2018
  • Novel making method of high resistive surface layer of Fe-based amorphous powder by surface-modification using two-step acid solution process
    Kanako Sugimura, Naoki Yabu, Makoto Sonehara, Toshiro Sato
    International Magnetics Conference 2018 (INTERMAG2018), Singapore, Apr. 2018
  • Fabrication of ferromagnetic Co-MgF2 granular film with high transmittance and large Faraday-effect for optical magnetic field sensor
    Mitsunori Miyamoto, Toshiya Kubo, Yuta Fujishiro, Kenta Shiota, Makoto Sonehara, Toshiro Sato
    International Magnetics Conference 2018 (INTERMAG2018), Singapore, Apr. 2018
  • A 120dB-Ohm 16MHz Pseudo Differential CMOS Analog Front End Circuit for Optical Probe Current Sensor
    Takaharu Uekura, Kousuke Oyanagi, Makoto Sonehara, Toshiro Sato, and Kousuke Miyaji
    International Conference on Solid State Devices and Materials 2017 (SSDM2017), Sendai, Japan, Sep. 2017
  • Surface-oxidized amorphous alloy powder/epoxy resin composite bulk magnetic core and its application to MHz band switching LLC resonant converter
    Kanako Sugimura, Daisuke Shibamoto, Tatsuya Yamamoto, Ryosuke Hirayama, Atsuya Ueno, Kelvin Lai Siong Ong, Naoki Yabu, Makoto Sonehara, Toshiro Sato, Tsutomu Mizuno, Hideaki Mizusaki
    International Magnetics Conference 2017 (INTERMAG2017), Dublin, Ireland, Apr. 2017
  • Characterization of UHF band LC filter with RF spiral inductor using carbonyl-iron-particle/epoxy composite magnetic and chip capacitor
    Makoto Sonehara, Yuki Miyajima, Sota Yamaguchi, Toshiro Sato
    International Magnetics Conference 2017 (INTERMAG2017), Dublin, Ireland, Apr. 2017
  • LLC resonant converter using magnetocated wire and iron-based metal composite core
    Tatsuya Yamamoto, Y. Konno, T. Dobashi, Kanako Sugimura, Toshiro Sato, Y. Bu, Tsutomu Mizuno
    International Magnetics Conference 2017 (INTERMAG2017), Dublin, Ireland, Apr. 2017
  • Magnetic Properties of Ni-Zn Ferrite/Metal Composite Core in MHz Range
    Satoshi Mori, Takeshi Mitsuoka, Makoto Sonehara, Toshiro Sato, Nobuhiro Matsushita
    61st Annual Conference on Magnetism and Magnetic Materials, New Orleans, LA, USA, Nov. 2016
  • Formation of high electrical-resistivity thin surface layer on Carbonyl-iron powder (CIP) and thermal stability of nanocrystalline structure and curling magnetic structure of CIP
    Kanako Sugimura, Yuki Miyajima, Fumitaka Hayashi, Makoto Sonehara, Toshiro Sato, Nobuyuki Zettsu, Katsuya Teshima, Hideaki Mizusaki
    MMM-Intermag 2016 Joint Conference, San Diego, CA, USA, Jan. 2016
  • Fundamental study of non-contact water salinity sensor by using electromagnetic means for seawater desalination plants
    Nguyen Van Toai, Makoto Sonehara, Toshiro Sato
    MMM-Intermag 2016 Joint Conference, San Diego, CA, USA, Jan. 2016
  • Surface-oxidized Carbonyl-iron powder/epoxy composite bulk magnetic core and its application to a MHz switching buck dc-dc converter
    Kanako Sugimura, Atsuya Ueno, Daisuke Shibamoto, Kosuke Sato, Makoto Sonehara, Toshiro Sato
    MMM-Intermag 2016 Joint Conference, San Diego, CA, USA, Jan. 2016
  • Q-factor increase of RF spiral inductor using composite magnetic core
    Kazuaki Furihata, Jun Koguchi, Shingo Tanaka, Makoto Sonehara and Toshiro Sato
    International Conference on Microwave Magnetics 2014 (ICMM2014), Sendai, Japan, Jul. 2014
  • Development of Simplified Quasi Transmission Line Thin Film Common Mode Filter With Air-Core Spiral Inductor and MIM Capacitors for Cell Phone
    Yasuaki Yoshisaku,Ryuji Nakagomi, Yuki Watanabe, Hidetoshi Nakayama, Makoto Sonehara, Toshiro Sato
    International Conference on Microwave Magnetics 2014 (ICMM2014), Sendai, Japan, Jul. 2014
  • Embedded planar power inductor in organic interposer for package-level DC power gird
    Yuichiro Yazaki, Kazuma Ishidate, Kazuhiro Hagita, Yuta Kondo, Saki Hattori, Makoto Sonehara, Toshiro Sato, Nobuhiro Matsushita, Tetsuro Watanabe, Yuto Seino
    International Magnetics Conference 2014 (INTERMAG2014), Dresden, Germany, May 2014
  • Influence of Initial Surface Roughness on Severe Wear Volume for SUS304 Austenitic Stainless Steels
    Akira Kawamura,Kazuyoshi Ishida,Katsuzo Okada, Toshiro Sato
    International Conference on Tribology and Interface Engineering 2013 (ICTIE2013), Venezia, Italy, Nov. 2013
  • Zn-Co Substituted Ferrite Films Prepared by Solution Process
    Tetsuro Watanabe, Kiminori Ushida, Kenichi Katsumata, Nobuhiro Matsushita, Kiyoshi Okada, Kazuhiro Hagita, Makoto Sonehara, Toshiro Sato
    11th International Conference on Ferrites (ICF11), Okinawa, Japan, Apr. 2013
  • Efficiency Increase in On-Chip Buck Converter by Introduction of High Permeability Material to Inductor on Interposer
    Hiroshi Fuketa, Yasuhiro Shinozuka, Koichi Ishida, Makoto Takamiya, Tomoharu Fujii, Hiroshi Shimizu, Kazutaka Kobayashi, Toshiro Sato, Takayasu Sakurai
    11th International Conference on Ferrites (ICF11), Okinawa, Japan, Apr. 2013
  • Magnetic Properties of Spin-sprayed Ferrite Film Deposited on Glass/Epoxy Build-up Layer in Organic Interposer Substrate
    Kazuhiro Hagita, Hiroki Kobayashi, Fumihiro Sato, Yuichiro Yazaki, Makoto Sonehara, Toshiro Sato, Tetsuro Watanabe, Nobuhiro Matsushita, Tomoharu Fujii, Hiroshi Shimizu, Kazutaka Kobayashi
    11th International Conference on Ferrites (ICF11), Okinawa, Japan, Apr. 2013
  • Characterization of current sensor with variable sensitivity and measuring range using bias magnetic field of a hard magnetic film magnetized by pulsed-current method
    Makoto Sonehara, Hiroki Kamada, Satoko Iida, Toshiro Sato
    12th Joint MMM-Intermag Conference, Chicago, IL, USA, Jan. 2013
  • Carbonyl-iron/epoxy composite magnetic core for planar power inductor used in POL DC-DC converter for package-level power grid
    Yuichiro Sugawa, Kazuma Ishidate, Makoto Sonehara, Toshiro Sato
    12th Joint MMM-Intermag Conference, Chicago, IL, USA, Jan. 2013
  • Magnetic core power inductor embedded in plastic interposer toward power supply integrated in LSI package (Invited)
    Toshiro Sato, Makoto Sonehara, Hiroki Kobayashi, Fumihiro Sato, Kazuhiro Hagita, Rie Takeda, Nobuhiro Matsushita, Tomohiro Fujii, Shinji Nakazawa, Hiroshi Shimizu, Kazutaka Kobayashi, Yasuhiro Shinozuka, Yuji Fuketa, Makoto Takamiya, Takayasu Sakurai
    The 3rd. International Workshop on Power Supply on Chip 2012, San Francisco, CA, USA, Nov. 2012
  • Linearity evaluation for optical probe current sensor using the magnetic Kerr effect
    Shin Suzuki, Hiroki Morisaki, Makoto Sonehara, Keisuke Ogawa, Toshiro Sato
    International Conference of the Asian Union of Magnetic Societies 2012 (ICAUMS2012), Nara, Japan, Oct. 2012
  • A study of Zn-ferrite film planar power inductor embedded in LSI interposer for integrated power supply
    Hiroki Kobayashi, Fumihiro Sato, Kazuhiro Hagita, Rie Takeda, Makoto Sonehara, Toshiro Sato, Nobuhiro Matsushita, Kazutaka Kobayashi, Hiroshi Shimizu, Tomohiro Fujii, Koichi Ishida, Takayasu Sakurai
    International Conference of the Asian Union of Magnetic Societies 2012 (ICAUMS2012), Nara, Japan, Oct. 2012
  • Development of Micro Magnetic Devices for High-Frequency Power Conversion and RF Applications (Invited)
    Toshiro Sato, Makoto Sonehara, Kenji Ikeda, Hidetoshi Nakayama, Kazutaka Takizawa
    2nd International Conference of the Asian Union of Magnetics Societies (ICAUMS2012), Oct. 2012
  • A possibility of tunable soft magnetic inductive device using bias magnetic field of a hard magnetic film magnetized by pulsed-current method
    Yosuke Obinata, Megumi Yuki, Makoto Sonehara, Yutaka Kuramoto, Kunihiko Suzuki, Kenji Ikeda, Toshiro Sato
    International Conference on Microwave Magnetics 2012 (ICMM2012), Kaiserslautern, Germany, Aug. 2012
  • Relation between high-frequency properties and direction of anisotropy magnetic field in magnetic thin film for RF inductor
    Makoto Sonehara, Toshiro Sato
    International Magnetics Conference 2012 (INTERMAG2012), Vancouver, Canada, May 2012
  • A possibility of tunable soft magnetic inductive device using DC bias magnetic field of hard magnetic film magnetized by pulse current method
    Megumi Yuki, Kenji Ikeda, Yutaka Kuramoto, Kunihiko Suzuki, Makoto Sonehara, Toshiro Sato
    International Magnetics Conference 2012 (INTERMAG2012), Vancouver, Canada, May 2012
  • Increase of Q-factor of RF magnetic thin film inductor by introducing multi conductor line spiral coil and slit-patterned magnetic thin film
    Takayuki Maruyama, Yosuke Obinata, Makoto Sonehara, Kenji Ikeda, Toshiro Sato
    International Magnetics Conference 2011 (INTERMAG2011), Taipei, Taiwan, Apr. 2011
  • Fabrication of planar power inductor for embedded passives in LSI package for hundreds megahertz switching DC-DC buck converter
    Hideyuki Ito, Asako Takeuchi, Shinya Okazaki, Hiroki Kobayashi, Yuichiro Sugawa, Akihiro Takeshima, Makoto Sonehara, Nobuhiro Matsushita, Toshiro Sato
    International Magnetics Conference 2011 (INTERMAG2011), Taipei, Taiwan, Apr. 2011
  • Relation between high-frequency properties and angle of anisotropy magnetic field in magnetic thin film for spiral inductor
    Makoto Sonehara, Keisuke Ogawa, Kenji Ikeda, Toshiro Sato
    International Magnetics Conference 2011 (INTERMAG2011), Taipei, Taiwan, Apr. 2011
  • CoFeSiO/SiO2 Magnetic Thin Film Inductor for CSP RF-IC
    Takayuki Maruyama, Megumi Yuki, Daisuke Kobayashi, Tomotake Minemura, Makoto Sonehara, Kenji Ikeda, Toshiro Sato
    International Conference on Microwave Magnetics 2010 (ICMM2010), Boston, MA, USA, Jun. 2010
  • Development of Zn-Ferrite Thick Film Planar Power Inductor
    Shinya Okazaki, Asako Takeuchi, Makoto Sonehara, Toshiro Sato, Nobuhiro Matsushita
    International Conference on Microwave Magnetics 2010 (ICMM2010), Boston, MA, USA, Jun. 2010
  • Strain sensor using stress-magnetoresistance effect of Ni-Fe/Mn-Ir exchange-coupled magnetic film
    T. Shinohara, M. Sonehara, T. Sato, K. Yamasawa, Y. Miura
    11th Joint MMM-Intermag Conference, Washington DC, USA, Jan. 2010
  • Development of electromagnetic wave shielding textile by electroless Ni-based alloy plating
    M. Sonehara,T. Sato,K. Yamasawa,Y. Miura
    International Magnetics Conference 2009 (INTERMAG2009), Sacramento, CA, USA, May 2009
  • CoFeSiO/SiO2 multilayer granular film with very narrow ferromagnetic resonant linewidth
    K. Ikeda, T. Suzuki, T. Sato
    International Magnetics Conference 2009 (INTERMAG2009), Sacramento, CA, USA, May 2009
  • Cross-talk suppression in high density printed circuit board using magnetic composite filled in spacing between signal lines
    S. Kayama, M. Sonehara,T. Sato,K. Yamasawa,Y. Miura
    International Magnetics Conference 2009 (INTERMAG2009), Sacramento, CA, USA, May 2009
  • Experimental results on electromagnetic wave shielding using nano-fiber textile with metallic magnetic material
    Makoto Sonehara,Toshiro Sato,Midori Takasaki,Hajime Konishi,Kiyohito Yamasawa,Yoshimasa Miura
    6th International Workshop on High Frequency Micromagnetic Devices and Materials (MMDM2008), Madrid, Spain, May 2008
  • Suppression of Sm segregation and improvement of thermal stability by introducing Ru underlayer in Co-Sm amorphous films
    Kenji Ikeda, Toshimasa Suzuki, Toshiro Sato
    International Magnetics Conference 2008 (INTERMAG2008), Madrid, Spain, May 2008
  • Preparation and characterization of nano-fiber nonwoven textile for electromagnetic wave shielding
    Makoto Sonehara,Toshiro Sato,Midori Takasaki,Hajime Konishi,Kiyohito Yamasawa,Yoshimasa Miura
    International Magnetics Conference 2008 (INTERMAG2008), Madrid, Spain, May 2008
  • Fabrication of novel chip temperature sensing device using Mn substituted Li-Zn-Cu ferrite
    Masayuki Naoe, Masayuki Oishi, Shinya Okazaki, Toshiro Sato, Kiyohito Yamasawa, Yoshimasa Miura
    International Magnetics Conference 2008 (INTERMAG2008), Madrid, Spain, May 2008
  • Development of Integrated Magnetic Thin Film Devices for RF Applications (Invited)
    T. Sato, M. Sonehara, K. Takizawa, H. Nakayama, K. Yamasawa, Y. Miura
    2008 Asian Magnetics Conference, 2008, Invited
  • Basic Investigation of Micro Temperature Sensor by means of A Novel Transmission-Line Technique using A Temperature Sensing Li-Zn-Cu Ferrite Substrate
    M. Naoe, R. Takahashi, T. Omura, Y. Hotta, T. Sato, K. Yamasawa, and Y. Miura
    18th Soft Magnetic Materials Conference 2007, Cardiff, UK, Sep. 2007
  • Synthesis and characterization of Temperature Sensitive Li-Zn-Cu Ferrite
    M. Naoe, T. Omura, T. Sato, K. Yamasawa, and Y. Miura
    2007 International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO 2007), Nagano, Japan, Jun. 2007
  • Mn-Ir/Fe-Si exchange-coupled film and its microwave magnetic properties
    M. Sonehara, K. Inagaki, T. Sato, K. Yamasawa, Y. Miura
    2007 International Symposium on Organic and Inorganic Electronic Materials and Related Nanotechnologies (EM-NANO 2007), Nagano, Japan, Jun. 2007
  • Fabrication of magnetic thin film directional coupler for mobile phones
    K. Takizawa, M. Nakazawa, K. Sugiura, S. Mizuta, A. Hashimoto, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara, M. Munakata, M. Yagi
    5th International Workshop on High Frequency Micromagnetic Devices and Materials (MMDM5), Baltimore, MD, USA, Jan. 2007
  • Li-Zn-Cu ferrite for temperature sensing
    M. Naoe, T. Omura, R. Takahashi, T. Sato, Y. Yamasawa, and Y. Miura
    3rd Asia Forum on Magnetics, Matsue, Japan, Sep. 2006
  • Investigation of high frequency permeability of Mn-Ir/Fe-Si exchange-coupled film on the basis of micromagnetic simulator
    M. Sonehara, T. Ishikawa, K. Inagaki, T. Sato, K. Yamasawa, Y. Miura, H. Fujiwara
    3rd Asia Forum on Magnetics, Matsue, Japan, Sep. 2006
  • Temperature characteristics of the polycrystalline Li-Zn-Cu ferrite
    M. Naoe, T. Omura, R. Takahashi, T. Sato, K. Yamasawa, and Y. Miura
    International Conference on Magnetism (ICM2006), Kyoto, Japan, Aug. 2006
  • Fabrication and evaluation of the directional coupler using CoFeB metallic magnetic film/polyimide dielectric film hybrid transmission-line
    K. Takizawa, S. Mizuta, M. Nakazawa, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara, M. Munakata, M. Yagi
    International Magnetics Conference 2006 (INTERMAG2006), San Diego, CA, USA, May 2006
  • Fabrication of an insulating type transmission-line transformer for high frequency inverter for discharge lamp
    T. Miyazaki, A. Kikuchi, T. Sato, K. Yamasawa, Y. Miura
    International Magnetics Conference 2006 (INTERMAG2006), San Diego, CA, USA, May 2006
  • Relation between microwave complex permeability and ferromagnetic Fe-Si layer thickness in Mn-Ir/Fe-Si exchange-coupled film
    M. Sonehara, T. Sugiyama, T. Ishikawa, K. Inagaki, S. Ikeda, T. Sato, K. Yamasawa, Y. Miura
    International Magnetics Conference 2006 (INTERMAG2006), San Diego, CA, USA, May 2006
  • Mn-Ir/Fe-Si exchange-coupled multilayer film with plural FMR absorptions for wideband noise filter
    M. Sonehara, T. Ishikawa, T. Sugiyama, T. Sato, K. Yamasawa, Y. Miura
    50th Conference on Magnetism and Magnetic Materials, San Jose, CA, USA, Nov. 2005
  • Suppression of insertion loss by slit-patterning of a magnetic film on a CoFeB/Polyimide hybrid thin-film coplanar-line for a RF impedance matching device
    H. Nakayama, T. Yamamoto, Y. Mizoguchi, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara, M. Munakata, M. Yagi
    50th Conference on Magnetism and Magnetic Materials, San Jose, CA, USA, Nov. 2005
  • Latest activities on the high frequency micromagnetic devices and materials in Japan (invited)
    Toshiro Sato
    3rd International Workshop on High Frequency Micromagnetic Devices and Materials (MMDM3), Sendai, Japan, Apr. 2005
  • A coplanar-coupled-line common-mode filter using CoZrNb magnetic thin film for GHz frequency band
    Y. Sudo, K. Watanabe, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara
    International Magnetics Conference 2005 (INTERMAG2005), Nagoya, Japan, Apr. 2005
  • A planar inductor using Mn-Zn ferrite/polyimide composite thick film for low-voltage, large-current dc-dc converter
    I. Kowase, T. Sato, K. Yamasawa, Y. Miura
    International Magnetics Conference 2005 (INTERMAG2005), Nagoya, Japan, Apr. 2005
  • A thin film spiral microstrip transmission-line using CoZrNb soft magnetic thin film for a quarter wavelength transformer
    H. Suzuki, N. Sugiyama, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara
    International Magnetics Conference 2005 (INTERMAG2005), Nagoya, Japan, Apr. 2005
  • A wideband common-mode noise filter with a Mn-Zn ferrite and Cu/polyimide tape wound coil for switching power supplies used in electronic measuring instruments
    K. Yanagisawa, F. Zhang, T. Sato, K. Yamasawa, Y. Miura
    International Magnetics Conference 2005 (INTERMAG2005), Nagoya, Japan, Apr. 2005
  • Preparation and characterization of Mn-Ir/Fe-Si exchange-coupled multilayer film with Ru underlayer for high-frequency micromagnetic devices
    M. Sonehara, T. Sugiyama, T. Sato, K. Yamasawa, Y. Miura
    International Magnetics Conference 2005 (INTERMAG2005), Nagoya, Japan, Apr. 2005
  • FeSi/IrMn exchange coupled multilayer film with plural FMR absorptions
    Makoto Sonehara, Toshiro Sato, Kiyohito Yamasawa, Yoshimasa Miura, Masahiro Yamaguchi
    IUMRS-ICAM 2003, Yokohama, Japan, Oct. 2003
  • Magnetic thin film inductor for MHz switching dc-dc converter (invited)
    Toshiro Sato
    2rd International Workshop on High Frequency Micromagnetic Devices and Materials (MMDM2), Boston, MA, USA, Apr. 2003
  • Spiral type transmission line with a Mn-Zn ferrite core
    Toshiro Sato, Kousuke Sato, Kiyohito Yamasawa, Fuchun Zhang, Koichi Yanagisawa
    International Magnetics Conference 2003 (INTERMAG2003), Boston, MA, USA, Apr. 2003
  • A new multilayered common-mode filter on Ni-Zn ferrite substrate
    T. Sato, S. Ikeda, Y. Hara, K. Yamasawa, T. Sakuma
    8th Joint MMM-Intermag Conference, San Antonio, TX, USA, Jan. 2001
  • A novel transmission-line type high frequency transformer using a fine-grain Mn-Zn ferrite
    T. Inoue, M. Furukawa, T. Sato, K. Yamasawa, T. Takahashi, Y. Sasaki, Y. Yamamoto, T. Hatanai, A. Makino
    International Magnetics Conference 1999 (INTERMAG1999), Kyongju, Korea, May 1999
  • Sputter-deposited FeCoBC/AlNx multilayered film for wet-etching process
    H. Tomita, T. Inoue, T. Mizoguchi, T. Sato
    International Magnetics Conference 1999 (INTERMAG1999), Kyongju, Korea, May 1999
  • Frequency-modulation type magnetic field sensor using transmission-line magnetic device
    S. Ikeda, T. Sato, K. Yamasawa
    International Magnetics Conference 1999 (INTERMAG1999), Kyongju, Korea, May 1999
  • New applications of nanocrystalline Fe(Co-Fe)-Hf-O magnetic films to micromagnetic devices
    T. Sato, Y. Miura, S. Matumura, K. Yamasawa, S. Morita, Y. Sasaki, T. Hatanai, A. Makino
    7th Joint Intermag-MMM Conference, San Francisco, CA, USA, Jan. 1998
  • Application of nanocrystalline Fe (or Co-Fe)-Hf-O magnetic films with high electrical resistivity to micro DC-DC converters
    T. Sato, E. Komai, K. Yamasawa, T. Hatanai, A. Makino
    International Magnetics Conference 1997 (INTERMAG1997), New Orleans, LA, USA, Apr. 1997
  • Study of high power planar inductor
    T. Sato, M. Hasegawa, T. Mizoguchi, M. Sahashi
    5th Joint Intermag-MMM Conference, Pittsburgh, PA, USA, Jun. 1991
  • Discussion on eddy current loss under square wave voltage excitation
    T. Sato, Y. Sakaki
    4th Joint Intermag-MMM Conference, Vancouver, Canada, Jul. 1988
  • Very low loss ultrathin Co based amorphous ribbon cores
    M. Yagi, T. Sato, Y. Sakaki, T. Sawa, K. Inomata
    4th Joint Intermag-MMM Conference, Vancouver, Canada, Jul. 1988
  • 100kHz - 10MHz iron loss measuring system
    T. Sato, Y. Sakaki
    International Magnetics Conference 1987 (INTERMAG1987), Tokyo, Japan, Apr. 1987
  • Large signal eddy current losses beyond 100kHz
    Y. Sakaki, T. Sato
    International Magnetics Conference 1984 (INTERMAG1984), Hamburg, Germany, Apr. 1984
  • A high frequency iron loss measuring system
    T. Katane, T. Yamaguchi, T. Ito, T. Sato, Y. Sakaki
    International Magnetics Conference 1984 (INTERMAG1984), Hamburg, Germany, Apr. 1984

Affiliated academic society

  • Magnetic Society of Japan
  • Institute of Electrical Engineers of Japan
  • Institute of Electronics, Information and Communication Engineers of Japan
  • IEEE Magnetics Society
  • Hokuriku-Shinetsu Branch, Japanese Society for Engineering Education
  • The Japan Society of Applied Electromagnetics and Mechanics

Research Themes

  • Power Magnetics
  • Sensor Magnetics
  • Microwave Magnetics