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SATO TOSHIRO

Academic OrganizationAcademic Assembly School of Science and Technology Institute of EngineeringTEL
Education and Research OrganizationFaculty of Engineering, Department of Electronics and Information Systems EngineeringFAX
PositionProfessorMail Address
Address4-17-1 Wakasato, Nagano, 380-8553Web sitehttp://amdl.shinshu-u.ac.jp/

Modified:11/02/2017

Profile

Assigned Class
Graduate School of Science and Technology
Interdisciplinary Graduate School of Science and Technology
Research Field
High Frequency Magnetic Materials
Microwave Magnetics
High Frequency Power Magnetics
Magnetic Sensor
Current Subject
Power Magnetics
Keywords:Micro smart power grid , Power supply on chip , Planar inductor , Ferrite thick film , Composite magnetic core
Sensor Magnetics
Keywords:Optical probe sensor , Kerr effect , Tunable sensor , Soft/hard hybrid magnetic film
Microwave Magnetics
Keywords:4G Cell phone , Magnetic thin film passives , Exchange biased high-frequency magnetic thin film , Granular magnetic thin film
Academic Societies
Academic Societies
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
Academic Background
Graduate School
Chiba University , (Product Engineering , Graduate School of Science and Technology) , 1989
Chiba University , (Electrical Engineering , Graduate School of Engineering) , 1984

College
Chiba University , (Faculty of Engineering) , 1982

Degree
Doctor of Philosophy
Master of Engineering
Bachelor of Engineering
Awards
2015 , 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 , Excellent Presentation Award, Spring Meeting, Japan Institute of Electronics Packaging
2015 , Academic Plaza 5 years Award, Japan Institute of Electronics Packaging, 2015 JPCA Show/Academic Plaza
2013 , 2013 Academic Plaza Award, Japan Institute of Electronics Packaging, 2013 JPCA Show/Academic Plaza
2013 , 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, 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 , 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 , Excellent Paper Presentation Award, Institute of Electrical Engineers of Japan
Research Career
Research 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.

Research

Books, Articles, etc.
Articles
Characterization of UHF Band LC Filter With RF Spiral Inductor Using Carbonyl-Iron Powder/Epoxy Composite Magnetic and Chip Capacitor
IEEE Transactions on Magnetics,53(11):#4002905-1-5 (5 pages) 2017(Nov.)
Author:Makoto Sonehara, Sota Yamaguchi, Yuki Miyajima, Toshiro Sato, Takeshi Inomata, and Yuji Ono


Surface-Oxidized Amorphous Alloy Powder/Epoxy-Resin Composite Bulk Magnetic Core and Its Application to Megahertz Switching LLC Resonant Converter
IEEE Transactions on Magnetics,53(11):#2801406-1-6 (6 pages) 2017(Nov.)
Author:Kanako Sugimura, Daisuke Shibamoto, Naoki Yabu, Tatsuya Yamamoto, Makoto Sonehara, Toshiro Sato, Tsutomu Mizuno, and Hideaki Mizusaki


Fabrication and evaluation of dispersed-Ag nanoparticles-in-polyimide thin films
Japanese Journal of Applied Physics,56(10S):10PB05 (4 pages) 2017(Sep.)
Author:Makoto Sonehara, Yuki Watanabe, Sota Yamaguchi, Takanori Kato, Yasuaki Yoshisaku, Toshiro Sato, and Eiji Itoh


High permeability and low loss of Ni-Zn-Fe ferrite/metal composite cores in high frequency region
AIP Advances, American Institute of Physics,7:056657-1-7 2017(Feb.)
Author:Satoshi Mori, Takeshi Mitsuoka, Makoto Sonehara, Toshiro Sato, Nobuhiro Matsushita


Relative Estimation of Water Content for Flat-Type Inductive-Based Oil Palm Fruit Maturity Sensor
Sensors (published monthly online by MDPI),52(17):10page 2016(Dec.)
Author:Norhisam Misron, Nor Aziana Aliteh, Noor Hasmiza Harun, Kunihisa Tashiro, Toshiro Sato and Hiroyuki Wakiwaka


Fundamental study of high Q-factor RF spiral inductor using carbonyl-iron/epoxy composite magnetic core
IEEJ Transactions on Electrical and Electronic Engineering,11(S1):S3-S8 2016(Aug.)
Author:Makoto Sonehara, Kazuaki Furihata, Jun Koguchi, Shingo Tanaka and Toshiro Sato


Fundamental Study of Non-Contact Water Salinity Sensor by Using Electromagnetic Means for Seawater Desalination Plants
IEEE Transactions on Magnetics,52(7):#4001604-1-4 2016(Jul.)
Author:Makoto Sonehara, Nguyen Van Toai, Toshiro Sato


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
AIP Advances, American Institute of Physics,6:055932-1-8 2016(May)
Author:K. Sugimura, Y. Miyajima, M. Sonehara, T. Sato, F. Hayashi, N. Zettsu, K. Teshima, and H. Mizusaki


Control of Magnetic Moment in Uniaxial Anisotropy Magnetic Thin Film Taking Leakage Flux in RF Planar Spiral Inductors with Closed-Magnetic Core into Account
Wiley Online Library, Electrical Engineering in Japan,191(2):1-6 2015(Apr.)
Author:Makoto Sonehara, Kenji Ikeda and Toshiro Sato


CMOS Switch Buck DC-DC Converter Fabricated in Organic Interposer with Embedded Zn-Fe Ferrite Core Inductor
Journal of the Magnetics Society of Japan,39(2):71-79 2015(Mar.)
Author: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


Embedded Planar Power Inductor in an Organic Interposer for Package-Level DC Power Grid
IEEE Transactions on Magnetics,50(11):#8401304-1-4 (4 pages) 2014(Nov.)
Author:Yuichiro Yazaki, Kazuma Ishidate, Kazuhiro Hagita, Yuta Kondo, Saki Hattori, Makoto Sonehara, Toshiro Sato, Tetsuro Watanabe, Yuto Seino, and Nobuhiro Matsushita


Efficiency Increase in On-Chip Buck Converter by Introduction of High Permeability Material to Inductor on Interposer
Journal of the Japan Society of Powder and Powder Metallurgy,61(S1):S340-S342 2014(May)
Author:H. Fuketa, Y. Shinozuka, K. Ishida, M. Takamiya, T. Fujii, H. Shimizu, K. Kobayashi, T. Sato, T. Sakurai


Magnetic and electronic properties of bimagnetic materials comprising cobalt particles within hollow silica decorated with magnetite nanoparticles
Journal of Applied Physics,114(12):124304 - 124304-8 2013(Sep.)
Author: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


Wideband Visible Wavelength Range MEMS Fabry-Perot Tunable Filter with Highly Accurate Calibration System
IEEE Sensors Journal,13(8):2930-2936 2013(Aug.)
Author:Nozomu Hirokubo, Hiroshi Komatsu, Nobuaki Hashimoto, Makoto Sonehara, and Toshiro Sato


Influence of Initial Surface Roughness on Severe Wear Volume for SUS304 Austenitic Stainless Steels
International Journal of Chemical, Materials Science and Engineering,7(11):126-130 2013(Jul.)
Author:A. Kawamura, K. Ishida, K. Okada, T. Sato


Carbonyl-Iron/Epoxy Composite Magnetic Core for Planar Power Inductor Used in Package-Level Power Grid
IEEE Transactions on Magnetics,49(7):4172-4175 2013(Jul.)
Author:Y. Sugawa, K. Ishidate, M. Sonehara, T. Sato


Characterization of Tunable Magnetic Sensor Using Bias Magnetic Field of a Hard Magnetic Film Magnetized by Pulsed-Magnetic Field
IEEE Transactions on Magnetics,49(7):3854-3857 2013(Jul.)
Author:M. Sonehara, H. Kamada, S. Iida, T. Sato


Fabrication of a Zn ferrite thick film planar power inductor for DC-DC converter LSI package
ELECTRONICS AND COMMUNICATIONS IN JAPAN,96(4):53-60 2013(Apr.)
Author:S. Okazaki, A. Takeuchi, A. Takeshima, M. Sonehara, T. Sato, N. Matsushita


90% High Efficiency and 100-W/cm3 High Power Density Integrated DC-DC Converter for Cellular Phones
IEEE Transactions on Power Electronics,28(4):1994-2004 2013(Apr.)
Author:Satoshi Sugahara, Kouhei Yamada, Masaharu Edo, Toshiro Sato, and Kiyohito Yamasawa


Wideband visible wavelength range MEMS Fabry-Perot Tunable Filter with Ag alloy mirror
ELECTRONICS AND COMMUNICATIONS IN JAPAN,96(3):17-23 2013(Mar.)
Author:N. Hirokubo, H. Komatsu, N. Hashimoto, M. Sonehara, T. Sato


A possibility of magnetic field biasing tunable inductive device using a hard magnetic film magnetized by pulsed-magnetic field
IEEE Transactions on Magnetics,49(3):978-981 2013(Mar.)
Author:Yosuke Obinata, Megumi Yuki, Makoto Sonehara, Yutaka Kuramoto, Kunihiko Suzuki, Toshiro Sato


Relation Between High-Frequency Properties and Direction of Anisotropy Magnetic Field in Magnetic Thin Film for RF Inductor Applications
IEEE Transactions on Magnetics,48(11):4515-4517 2012(Nov.)
Author:Makoto Sonehara, Toshiro Sato


OPTICAL PROBE CURRENT SENSOR MODULE USING THE KERR EFFECT OF EXCHANGE-COUPLED MAGNETIC FILM AND ITS APPLICATION TO IGBT SWITCHING CURRENT MEASUREMENTS
INTERNATIONAL JOURNAL ON SMART SENSING AND INTELLIGENT SYSTEMS,5(2):347-361 2012(Jun.)
Author:K. Ogawa, S. Suzuki, M. Sonehara, T. Sato, K. Asanuma


Fabrication of Planar Power Inductor for Embedded Passives in LSI Package for Hundreds Megahertz Switching DC-DC Buck Converter
IEEE Transactions on Magnetics,47(10):3204-3207 2011(Oct.)
Author:Hideyuki Ito, Asako Takeuchi, Shinya Okazaki, Hiroki Kobayashi, Yuichiro Sugawa, Akihiro Takeshima, Makoto Sonehara, Nobuhiro Matsushita, Toshiro Sato


Increase of Q-Factor of RF Magnetic Thin Film Inductor by Introducing Slit-Patterned Magnetic Thin Film and Multiline-Conductor Spiral Coil
IEEE Transactions on Magnetics,47(10):3196-3199 2011(Oct.)
Author:Takayuki Maruyama, Yosuke Obinata, Makoto Sonehara, Kenji Ikeda, Toshiro Sato


Characteristic Analysis of a Micro DC-DC Converter for Portable Electronic Devices and an Improvement of Transient Response Characteristic
ELECTRICAL ENGINEERING IN JAPAN,175(3):56-64 2011(Mar.)
Author:S. Sugahara, K. Yamada, H. Nishio, M. Edo, T. Sato, and K. Yamasawa


Crystal Orientation of Co35Fe65 Thin Film for the GHz Frequency Use with More Than 10 GHz
Journal of the Magnetics Society of Japan,34(3):248-253 2010(May)
Author:Makoto Munakata, Shin-ichi Aoqui, Masatoshi Ohkoshi, Koichiro Maki, Makoto Sonehara, Kenji Ikeda, Toshiro Sato


Strain sensor using stress-magnetoresistance effect of Ni–Fe/Mn–Ir exchange-coupled magnetic film
Journal of Applied Physics,107(9) 2010(May)
Author:M. Sonehara, T. Shinohara, T. Sato, K. Yamasawa, Y. Miura


Cross-talk suppression in high-density printed circuit boards using magnetic composite filled in spacing between signal lines
IEEE Transactions on Magnetics,45(10):4801-4803 2009(Oct.)
Author:S. Kayama, M. Sonehara, T. Sato, K. Yamasawa, Y. Miura


Development of an electromagnetic wave shielding textile by electroless Ni-based alloy plating
IEEE Transactions on Magnetics,45(10):4173-4175 2009(Oct.)
Author:M. Sonehara, S. Noguchi, T. Kurashina, T. Sato, K. Yamasawa, Y. Miura


Optical/High-frequency Applications of Functional Magnetic Materials
IEEJ Transactions on Electrical and Electronic Engineering,4(1):6-7 2009(Feb.)
Author:Mitsuteru Inoue, Toshiro Sato


CoFeSio/SiO2 multilayer granular films with very narrow ferromagnetic resonant linewidth
IEEE Transactions on Magnetics,45(10):4290-4293 2009
Author:K. Ikeda, T. Suzuki, T. Sato


FeNiSiO/SiO2 multi-layer granular magnetic films with high-resistivity
Transactions of the Materials Research Society of Japan,34(1):9-13 2009
Author:K. Ikeda, T. Suzuki, T. Sato


High Efficiency PWM Controlled Micro DC-DC Converter for Portable Electronic Equipments
IEICE Transactions on Communications,E91-B(11):3704-3711 2008
Author:S. Sugahara, K. Yamada, T. Kawashima, M. Edo, T. Sato, K. Yamasawa


Characterization of Novel Chip Temperature-Sensing Device Using Mn-Substituted Li-Zn-Cu Ferrite
IEEE Transactions on Magnetics,44(11):2985-2988 2008
Author:M. Naoe, M. Oishi, S. Okazaki, T. Sato, K. Yamasawa, Y. Miura


Preparation and Characterization of Nanofiber Nonwoven Textile for Electromagnetic Wave Shielding
IEEE Transactions on Magnetics,44(11):3107-3110 2008
Author:M. Sonehara, T. Sato, M. Takasaki, H. Konishi, K. Yamasawa, Y. Miura


Suppression of Sm Segregation and Improvement in Thermal Stability by Introducing Ru Underlayer in Co-Sm Amorphous Films
IEEE Transactions on Magnetics,44(11):3906-3909 2008
Author:K. Ikeda, T. Suzuki, T. Sato


Basic investigation of microtemperature sensor by means of a novel transmission-line technique using a temperature-sensitive Li-Zn-Cu ferrite substrate
Journal of the Magnetism and Magnetic Materials,320(20):949-953 2008
Author:M. Naoe, R. Takahashi, T. Omura, Y. Hotta, T. Sato, K. Yamasawa, Y. Miura


Magnetic properties of Co-Sm amorphous films in GHz band
Journal of the Magnetics Society of Japan,32(3):179-186 2008
Author:K. Ikeda, T. Suzuki, T. Sato


Synthesis and Characterization of Temperature Sensitive Li-Zn-Cu Ferrite
Japanese Journal of Applied Physics,47(1):550-553 2008
Author:M. Naoe, T. Omura, T. Sato, K. Yamasawa, Y. Miura


Ferromagnetic Resonance Simulation of Mn-Ir/Fe-Si Exchange-Coupled Film on Basis of LLG Equation Taking Exchange-Stiffness Dispersion Model into Account
Journal of the Magnetics Society of Japan,31(3):153-158 2007
Author:M. Sonehara, T. Ishikawa, K. Inagaki, T. Sato, K. Yamasawa, Y. Miura, H. Fujiwara


Relation between microwave complex permeability and ferromagnetic Fe-Si layer thickness in Mn-Ir/Fe-Si exchange-coupled film
IEEE Transactions on Magnetics,42(10):2984-2986 2006
Author:M. Sonehara, T. Sugiyama, T. Ishikawa, K. Inagaki, T. Sato, K. Yamasawa, Y. Miura


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
Journal of Applied Physics,99:08P508 2006
Author:Nakayama, H. Yamamoto, Y. Mizoguchi, Y. Nakazawa, M. Sato, T. Yamasawa, K. Miura, Y. Miyake, Y. Akie,M . Uehara, Y. Munakata, M. Yagi, M.


MnIr/FeSi exchange-coupled multilayer film with plural ferromagnetic resonance absorptions for wideband noise filter
Journal of Applied Physics,99:08M309 2006
Author:Sonehara, M. Ishikawa, T. Sugiyama, T. Sato, T. Yamasawa, K. Miura, Y.


Preparation and characterization of Mn-Ir/Fe-Si exchange-coupled multilayer film with Ru underlayer for high-frequency applications
IEEE Transactions on Magnetics,41(10):3511-3513 2005
Author:M. Sonehara, T. Sugiyama, T. Sato, K. Yamasawa, Y. Miura


A new wideband common-mode noise filter consisting of Mn-Zn ferrite core and copper/polyimide tape wound coil
IEEE Transactions on Magnetics,41(10):3571-3573 2005
Author:K. Yanagisawa, F. Zhang, T. Sato, K. Yamasawa


A thin film spiral microstrip transmission-line using CoZrNb soft magnetic thins film for a quarter wavelength transformer
IEEE Transactions on Magnetics,41(10):3574-3576 2005
Author:H. Suzuki, N. Sugiyama, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara


A planar inductor using Mn-Zn ferrite/polyimide composite thick film for low-voltage and large-current dc-dc converter
IEEE Transactions on Magnetics,41(10):3991-3993 2005
Author:I. Kowase, T. Sato, K. Yamasawa, Y. Miura


FeSi/IrMn Exchange-Coupled Multilayer Film with Plural FMR absorptions
Transactions of the Materials Research Society of Japan,29(4):1735-1738 2004
Author:M. Sonehara, T. Sato, K. Yamasawa, Y. Miura, M. Yamaguchi


Fabrication of a common- mode noise filter for balanced-mode signal transmission using Mn-Zn ferrite particle/polyimide composite thick film
IEEJ Transactions on Fundamentals and Meterials,124(1):91-97 2004
Author:T. Sato, T. Kokai, M. Moroishi, K. Yamasawa, T. Sakuma, H. Karasawa, K. Hirasawa


Spiral type transmission line with a Mn-Zn ferrite core
IEEE Transactions on Magnetics,39(5):3205-3207 2003
Author:T. Sato, K. Sato, K. Yamasawa, F. Zhang, K. Yanagisawa


Relation between power dissipation and signal transmission characteristic in CoZrNb/Polyimide hybrid microstrip line
Transactions of the Magnetics Society of Japan,2(5):377-383 2002
Author:T. Sato, S. Ikeda, H. Nakayama, K. Takizawa, and K. Yamasawa


Measurement of the source impedance of conducted emission using mode separable LISN: Conducted emission of a switching power supply
ELECTRICAL ENGINEERING IN JAPAN,139(2):72-78 2002
Author:J. Miyashita, M. Mitsuzawa, T. Karube, K. Yamasawa, T. Sato


A thin film type magnetic/dielectric hybrid transmission-line with a large wavelength shortening
IEEE Transactions on Magnetics,37(4):2903-2904 2001
Author:S. Ikeda, T. Sato, A. Ohshiro, K. Yamasawa, T. Sakuma


A new multilayered common-mode filter on Ni-Zn ferrite substrate
IEEE Transactions on Magnetics,37(4):2900-2902 2001
Author:T. Sato, S. Ikeda, Y. Hara, K. Yamasawa, T. Sakuma


Multilayered transformer utilizing Mn-Zn ferrite and its application to a forward-type DC-DC converter
ELECTRICAL ENGINEERING IN JAPAN,135(4):1-8 2001
Author:T. Sato, H. Yokoyama, K. Yamasawa, K. Toya, S. Kobayashi, T. Minamisawa


FeCoBN magnetic thin film inductor for MHz switching micro DC-DC converters
IEEJ Transactions on Industrial Applications,121-D:84-89 2001
Author:T. Sato, K. Yamasawa, H. Tomita, T. Inoue, T. Mizoguchi


Frequency-modulation type magnetic field sensor using transmission-line magnetic device
IEEE TRANSACTIONS ON MAGNETICS,35(5):3631-3633 1999
Author:S. Ikeda, T. Sato, K. Yamasawa


Sputter-deposited FeCoBC/AlNx multilayered film for wet-etching process
IEEE TRANSACTIONS ON MAGNETICS,35(5):3571-3573 1999
Author:H. Tomita, T. Inoue, T. Mizoguchi, T. Sato


A novel transmission-line type high frequency transformer using a fine-grain Mn-Zn ferrite
IEEE TRANSACTIONS ON MAGNETICS,35(5):3538-3540 1999
Author:T. Inoue, M. Furukawa, T. Sato, K. Yamasawa, T. Takahashi, Y. Sasaki, Y. Yamamoto, T. Hatanai, A. Makino


The effect of magnetic film structure on the inductance of a planar inductor
IEEE TRANSACTIONS ON MAGNETICS,34(4):1372-1374 1998
Author:Inoue, T; Nishijima, K; Yatabe, S; Mizoguchi, T; Sato, T


New applications of nanocrystalline Fe(Co-Fe)-Hf-O magnetic films to micromagnetic devices
JOURNAL OF APPLIED PHYSICS,83(11):6658-6660 1998
Author:T. Sato, Y. Miura, S. Matumura, K. Yamasawa, S. Morita, Y. Sasaki, T. Hatanai, A. Makino


High frequency soft magnetic properties of nanocrystalline Fe-(Co)-Hf-O films with high electrical resistivity and their application to micro DC-DC converter
NANOSTRUCTURED MATERIALS,8(8):1025-1032 1997
Author:Y. Sasaki, S. Morita, T. Hatanai, A. Makino, T. Sato, K. Yamasawa


Application of nanocrystalline Fe (or Co-Fe)-Hf-O magnetic films with high electrical resistivity to micro DC-DC converters
IEEE TRANSACTIONS ON MAGNETICS,33(5):3310-3312 1997
Author:T. Sato, E. Komai, K. Yamasawa, T. Hatanai, A. Makino


Epitaxial Fe72Co28(112) films grown on MgO(100) substrates
Japanese Journal of Applied Physics,34:1851-1854 1995
Author:H. Tomita, A. Sawabe, T. Sato, T. Mizoguchi


Simulation of Micro Magnetic Devices
IEEE Translation Journal on Magnetics in Japan,9(4):68-75 1994(Apr.)
Author:T. Sato, T. Mizoguchi, M. Sahashi


Oblique field annealing of CoZrNb amorphous magnetic thin film
IEEE Transactions on Magnetics,30(2):1336-1339 1994
Author:H. Tomita, T. Sato, T. Mizoguchi


A magnetic thin film inductor and its application to a MHz switching dc-dc converter
IEEE Transactions on Magnetics,30(2):217-223 1994
Author:T. Sato, H. Tomita, A. Sawabe, T. Inoue, T. Mizoguchi, M. Sahashi


Formula for dynamic power loss in ferrite cores taking into account displacement current
IEEE Transactions on Magnetics,29(6):3517-3519 1993
Author:Y. Sakaki, M. Yoshida, T. Sato


Planar inductor for very small dc-dc converters
IEICE Transactions on Communications,E75-B(11):1186-1191 1992
Author:T. Sato, M. Hasegawa, T. Mizoguchi, M. Sahashi


Study of high power planar inductor
IEEE Transactions on Magnetics,27(6):5277-5279 1991
Author:T. Sato, M. Hasegawa, T. Mizoguchi, M. Sahashi


Physical meaning of equivalent loss resistance of magnetic cores
IEEE Transactions on Magnetics,26(5):2894-2897 1990
Author:T. Sato, Y. Sakaki


Magnetization Mechanism of Polycrystalline Mn-Zn Ferrite in MHz Band
IEEE Translation Journal on Magnetics in Japan,3(7):531-533 1988(Jul.)
Author:T. Sato, Y. Sakaki


Very low loss ultrathin Co based amorphous ribbon cores
Journal of Applied Physics,64(10):6050-6052 1988
Author:M. Yagi, T. Sato, Y. Sakaki, T. Sawa, K. Inomata


Discussion on eddy current loss under square wave voltage excitation
IEEE Transactions on Magnetics,24(6):2904-2906 1988
Author:T. Sato, Y. Sakaki


100kHz - 10MHz iron loss measuring system
IEEE Transactions on Magnetics,23(5):2593-2595 1987
Author:T. Sato, Y. Sakaki


A high frequency iron loss measuring system
IEEE Transactions on Magnetics,20(5):1729-1731 1984
Author:T. Katane, T. Yamaguchi, T. Ito, T. Sato, Y. Sakaki


Large signal eddy current losses beyond 100kHz
IEEE Transactions on Magnetics,20(5):1487-1489 1984
Author:Y. Sakaki, T. Sato


Presentations
Transient Response Improvement of Digitally Controlled DC-DC Converter with Feedforward Compensation
IEEE Power Electronics Society , Proceedings of the International Telecommunications Energy Conference 2015 (INTELEC2017), P21 , :609-614 2017(Oct.)
Author:Kosuke Sato, Toshiro Sato, Makoto Sonehara


Fabrication and Evaluation of Electromagnetic Defect Detector for Laser Welding Joint on Stainless Steel Pipe
2015 Ninth International Conference on Sensing Technology (ICST 2015) , Proceedings of the ICST2015 , :338-341 2015(Dec.)
Author:Makoto Sonehara, Fumiya Nagashima, Toshiro Sato, Kohei Yazaki, Noritaka Aota, Susumu Shimadu


Transient Response Improvement of Digitally Controlled Buck-Type DC-DC Converter with Feedforward Compensator
IEEE Power Electronics Society , Proceedings of the International Telecommunications Energy Conference 2015 (INTELEC2015), PS08-54 , :1153-1157 2015(Oct.)
Author:Kosuke Sato, Toshiro Sato, Makoto Sonehara


Embedded Planar Power Inductor Technology for Package-level DC Power Grid
The Japan Institute of Electronics Packaging, IEEE CPMT Society Japan Chapter and iMAPS , ICEP-IAAC 2015 Proceedings (2015 International Conference on Electronics Packaging & iMAPS All Asia Conference) , :814-817 2015(Apr.)
Author: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


Development of Optical Probe Current Sensor with Kerr Effect for Power Electronics
IEEE , IEEE Sensors 2014 Proceedings, Valencia, Spain , :1928-1931 2014(Nov.)
Author:Daiki Karasawa, Makoto Sonehara, Shin Kitazawa, Toshiro Sato


Wafer level package by using post dicing process
ICEP2014 Proceedings (International Conference on Electronics Packaging 2014) , :34-38 2014(Apr.)
Author:Noriyuki Fujimori, Takatoshi Igarashi, Takahiro Shimohata, Takuro Suyama, Kazuhiro Yoshida, Yusuke Nakagawa, Tsutomu Nakamura, and Toshiro Sato


Efficiency Increase in On-Chip Buck Converter by Introduction of High Permeability Material to Inductor on Interposer
The Japan Society of Powder and Powder Metallurgy , THE 11TH INTERNATIONAL CONFERENCE ON FERRITES (ICF 11) , 18aA1-II-4 2013(Apr. 18)
Author:Hiroshi Fuketa, Yasuhiro Shinozuka, Koichi Ishida, Makoto Takamiya, Tomoharu Fujii, Hiroshi Shimizu, Kazutaka Kobayashi, Toshiro Sato, Takayasu Sakurai


Magnetic Properties of Spin-sprayed Ferrite Film Deposited on Glass/Epoxy Build-up Layer in Organic Interposer Substrate
The Japan Society of Powder and Powder Metallurgy , THE 11TH INTERNATIONAL CONFERENCE ON FERRITES (ICF 11) , 17pP-51 2013(Apr. 17)
Author:Kazuhiro Hagita, Hiroki Kobayashi, Fumihiro Sato, Yuichiro Yazaki, Makoto Sonehara, Toshiro Sato, Tetsuro Watanabe, Nobuhiro Matsushita, Tomoharu Fujii, Hiroshi Shimizu, Kazutaka Kobayashi


Magnetic core power inductor embedded in plastic interposer toward power supply integrated in LSI Package (Invited)
IEEE Power Electronics Society , The 3rd. International Workshop on Power Supply on Chip 2012 , 7-2 2012(Nov.)
Author: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


Wideband Visible Wavelength Range MEMS Fabry-Perot Tunable Filter with Calibration System
Proceedings of IEEE SENSORS 2012 , :303-306 2012(Oct.)
Author:N. Hirokubo, H. Komatsu, N. Hashimoto, M. Sonehara, T. Sato


Development of Micro Magnetic Devices for High-Frequency Power Conversion and RF Applications (Invited)
Magnetics Society of Japan , 2nd International Conference of the Asian Union of Magnetics Societies , :5aB-3 2012(Oct.)
Author:Toshiro Sato, Makoto Sonehara, Kenji Ikeda, Hidetoshi Nakayama, Kazutaka Takizawa


Planar Power Inductor with Magnetic Film for Embedded LSI Package
Internationa Microelectronics and Packaging Society , 45th International Symposium on Microelectronics 2012 , :464~472 2012(Sep.)
Author:Tomoharu Fujii, Kazutaka Kobayashi, Hiroshi Shimizu, Shinji Nakazawa, Toshiro Sato, Fumihiro Sato, Hiroki Kobayashi


Fundamental study of optical probe current sensor using Kerr effect of single magnetic domain film
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Proceedings of the 18th IEEE Conference on Sensors (IEEE Sensors 2009 Conference) , :1232-1237 2009
Author:M. Sonehara, K. Asanuma, N. Otani, T. Goto, Y. Kikuchi, T. Sato, K. Yamasawa, Y. Miura


Development of Integrated Magnetic Thin Film Devices for RF Applications (Invited)
Korean Magnetics Society, IEEE Magnetics Society , 2008 Asian Magnetics Conference , (EC-02):269 2008
Author:T. Sato, M. Sonehara, K. Takizawa, H. Nakayama, K. Yamasawa, Y. Miura


Low Power Consumption and High Power Density Integrated DC-DC Converter for Portable Equipments
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Proceedings of the IEEE Asian Solid-State Circuit Conference (ASSCC2008) , :149-152 2008
Author:S. Sugahara, K. Yamada, M. Edo, T. Sato, K. Yamasawa


Analysis of Directional Coupler Using Magnetic/Dielectric Hybrid Transmission-Line for Cellular Phone
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2006 Asia-Pacific Microwave Conference Proceedings , 2:1384-1387 2006
Author:K. Takizawa, S. Mizuta, M. Nakazawa, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, U. Uehara, M. Munakata, M. Yagi


Directional Coupler Composed of CoFeB Metallic Magnetic Film/Polyimide Dielectric Film Hybrid Transmission-Line
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2005 Asia-Pacific Microwave Conference Proceedings , :2819-2822 2005
Author:K. Takizawa, M. Nakazawa, T. Sato, K. Yamasawa, Y. Miura, M. Munakata, M. Yagi


Development of an Integrated RF Impedance Matching Device with LPF Function using a CoFeB Magnetic/Polyimide Dielectric Hybrid Thin-Fim Coplanar-Line
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2005 Asia-Pacific Microwave Conference Proceedings , :720-722 2005
Author:H. Nakayama, T. Yamamoto, Y. Mizoguchi, T. Sato, K. Yamasawa, Y. Miura, Y. Miyake, M. Akie, Y. Uehara, M. Munakata


Amplitude modulation effect of dc-dc converter noise on CMOS logic signal transmission on microstrip PCB
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Proceedings of the IEEE International Telecommunications Energy Conference , :510- 514 2003
Author:K.-I. Nishijima, T. Sato, K. Yamasawa


A study on hybrid thin film microstrip line composed of CoZrNb metallic magnetic film and Polyimide dielectric film
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2002 Asia-Pacific Microwave Conference Proceedings , :602-605 2002
Author:T. Sato, S. Ikeda, K. Takizawa, and K. Yamasawa


A high sensitive multilayered parametric magnetic sensor
IEEJ , Proceedings of the International Conference on Electrical Engineering (ICEE 2001) , 3:1677-1680 2001
Author:K. Karasawa, H. Matsushima, T. Sato, K. Yamasawa, Y. Tanno


Thin film inductor for micro switching converters using a high resistive Fe-Zr-O film
IEEJ , International Power Electronics Conference 2000 Proceedings , :315-319 2000
Author:Y. Sasaki, E. Komai, T. Hatanai, T. Sato, K. Yamasawa


Planar power inductor using FeCoBN magnetic film with high saturation magnetization and high electrical resistivity
IEEJ , International Power Electronics Conference 2000 Proceedings , :303-308 2000
Author:T. Sato, K. Yamasawa, H. Tomita, T. Inoue, T. Mizoguchi


A study of parametric models applied to in-service life prediction of dry vacuum pump
IMACS Symposium on MATHEMATICAL MODELLING , 1:111-114 2000
Author:A. Ishida, S. Konishi, T. Sato, K. Yamasawa


A new multilayered parametric magnetic sensor
Proceedings of the 2nd Magneto-Electronics International Symposium (Nagano magel’99) , :319-322 1999
Author:K. Karasawa, H. Matsushima, Y. Tanno, T. Sato, K. Yamasawa


A small and thin common mode choke composed of multilayered transformer structure with high coupling coefficient
Proceedings of the 2nd Magneto-Electronics International Symposium (Nagano magel’99) , :395-398 1999
Author:Y. Hara, T. Sato, K. Yamasawa, K. Toya, S. Kobayashi, T. Minamisawa


Device simulations of magnetic/dielectric hybrid transmission-lines by using electromagnetic field analysis
Proceedings of the 2nd Magneto-Electronics International Symposium (Nagano magel’99) , :399-402 1999
Author:S. Ikeda, N. Shirai, K. Ito, A. Hirano, T. Sato, K. Yamasawa


The optimum chip size of a thin film reactor for a high-efficiency operation of a micro dc-dc converter
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Record of the IEEE Power Electronics Specialists Conference (PESC’98) , :1499-1503 1998
Author:S. Sugahara, M. Edo, T. Sato, K. Yamasawa


A new multi-polar flat transformer and its application to a planar type dc/dc converter
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Record of the IEEE Power Electronics Specialists Conference (PESC’98) , :1548-1554 1998
Author:T. Minamisawa, T. Sato, K. Yamasawa


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
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Record of the IEEE Power Electronics Specialists Conference (PESC’98) , :1555-1560 1998
Author:Y. Sasaki, S. Morita, T. Hatanai, A. Makino, T. Sato, K. Yamasawa


Transmission-line low pass filter for switching power supplies
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Record of the IEEE Power Electronics Specialists Conference (PESC’98) , :1972-1978 1998
Author:T. Sato, S. Ikeda, K. Yamasawa, T. Mizoguchi


5MHz switching micro dc-dc converter using planar inductor
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Proceedings of the IEEE International Telecommunications Energy Conference (INTELEC’96) , :485-490 1996
Author:T. Sato, T. Inoue, H. Tomita, S. Yatabe, K. Nishijima, Y. Tokai, M. Nameki, N. Saito, T. Mizoguchi


Loss evaluation in converter transformer cores
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , Proceedings of the IEEE International Telecommunications Energy Conference (INTELEC’83) , :408-412 1983
Author:Y. Sakaki, T. Sato, T. Ito


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