Doctor of Engineering, Tokyo Institute of Technology

Master of Engineering, Tokyo Institute of Technology

Polymer materials

2007
-:Tokyo Institute of Technology Depertment of Organic and Polymeric Mterials, Graduate School of Science and Engineering Assistant Professor

2007
-:東京工業大学 大学院理工学研究科 有機・高分子物質専攻 助教

2001 - 2007
:Toray Industries, Inc. Resercher

2001 - 2007
:東レ株式会社 研究員

2000 - 2001
:Kanazawa Institute of Thechnology Advanced Materials Science Reserch & Development Center Post Doctor

2000 - 2001
:金沢工業大学 高度材料科学研究開発センター 博士研究員

2000, Tokyo Institute of Technology, Science of Engineering, 有機材料工学専攻

2010 - Present
Planning committee member, Society of Fiber Science and Technology, Japan

2010 - Present
Editorial committee member, Japan Society of Polymer Processing

2007
若手委員, 繊維学会

Effect of solvent and concentration on internal structure developments of electrospun polyamide 6 nanofibers
Zichen Yang; Rei Udagawa; Dongyang Li; Minoru Ashizawa; Wataru Takarada; Hidetoshi Matsumoto
Polymer, Jun. 2026

Stereocomplex crystal formation in sheath/core and sea/island Poly(L-lactic acid)/poly(D-lactic acid) fibers prepared through laser-heated melt electrospinning and subsequent annealing processes
Zongzi Hou; Haruki Kobayashi; Katsufumi Tanaka; Wataru Takarada; Takeshi Kikutani; Midori Takasaki
Polymer, 317, Jan. 2025

Small-angle x-ray scattering analysis of carbon fiber voids considering void length distribution
Daisuke Kimura; Masahiko Demura; Kenji Nagata; Toshihira Irisawa; Yoshiki Sugimoto; Wataru Takarada; Masatoshi Shioya
Carbon Trends, 100346-100346, Mar. 2024

Laser-Assisted Melt Electrospinning of Poly(L-lactide-co-ɛ-caprolactone): Effect of Laser Power on Spinning Behavior and Fiber Structure Formation
Zongzi Hou; Haruki Kobayashi; Katsufumi Tanaka; Wataru Takarada; Takeshi Kikutani; Midori Takasaki
Fibers and Polymers, 25(1), 35-46, Jan. 2024

Compressive strength and compressive failure mechanism of high-modulus carbon fibers from polyacrylonitrile and mesophase pitch
Daisuke Kimura; Naoki Akimoto; Wataru Takarada; Masatoshi Shioya
Carbon Reports, 2024

Effect of the Fiber Diameter of Polyamide 11 Nanofibers on Their Internal Molecular Orientation and Properties
Wataru Takarada
Macromolecular Rapid Communications, Jun. 2023, Refereed

The relation between reversible thermal shrinkage and orientation change of polyamide fibers
Daisuke Kimura; Toshihira Irisawa; Wataru Takarada; Masatoshi Shioya
AIP Conference Proceedings, 2884, 080001-080001, 2023

Corrigendum to “Effect of hydrogen–deuterium exchange in amide linkages on properties of electrospun polyamide nanofibers” [Polymer 229 (2022) 123994](S0032386121006170)(10.1016/j.polymer.2021.123994)
Dongyang Li; Wataru Takarada; Minoru Ashizawa; Takuya Yamamoto; Hidetoshi Matsumoto
Polymer, 2023

Verification of the Influence of Processing History through Comparing High-Speed Melt Spinning Behavior of Virgin and Recycled Polypropylene.
Wataru Takarada; Mohammad A Barique; Tatsuma Kunimitsu; Takao Kameda; Takeshi Kikutani
Polymers, 14(16), Aug. 2022, Refereed
Lead

3D‐Knit Dry Electrodes using Conductive Elastomeric Fibers for Long‐Term Continuous Electrophysiological Monitoring
Ladan Eskandarian; Amirali Toossi; Farah Nassif; Sahar Golmohammadi Rostami; Siting Ni; Amin Mahnam; Milad Alizadeh Meghrazi; Wataru Takarada; Takeshi Kikutani; Hani E. Naguib
Advanced Materials Technologies, Jul. 2022

Mechanism of fiber structure development in melt spinning of PLA
Nanjaporn Roungpaisan; Midori Takasaki; Wataru Takarada; Takeshi Kikutani
Poly(lactic acid): Synthesis, Structures, Properties, Processing, Applications, and End of Life, 425-438, Jun. 2022

Laser-Assisted Melt Electrospinning of Poly(L-lactide-co-ε-caprolactone): Analyses on Processing Behavior and Characteristics of Prepared Fibers
Zongzi Hou; Haruki Kobayashi; Katsufumi Tanaka; Wataru Takarada; Takeshi Kikutani; Midori Takasaki
Polymers, 14(12), Jun. 2022, Refereed

The origin of contraction of twisted polymer fiber muscles: whether the cause is entropic elasticity or thermal expansion
Daisuke Kimura; Toshihira Irisawa; Kentaro Takagi; Kenji Tahara; Daichi Sakurai; Haruhiko Watanabe; Wataru Takarada; Masatoshi Shioya
Electroactive Polymer Actuators and Devices (EAPAD) XXIV, Apr. 2022

Planar or Biaxial Stretching of Poly(ethylene terephthalate) Fiber Webs Prepared by Laser-Electrospinning.
Tomoki Tokuda; Ryo Tsuruda; Takuya Hara; Zongzi Hou; Haruki Kobayashi; Katsufumi Tanaka; Wataru Takarada; Takeshi Kikutani; Juan P Hinestroza; Joselito M Razal; Midori Takasaki
Materials (Basel, Switzerland), 15(6), Mar. 2022, Refereed

微細毛静電チャックの表面柔軟性確保のためのシート状交互五層（導電層、絶縁層）高分子複合材料の開発
駒田 ひろ; 田岡 祐樹; 宝田 亘; 齊藤 滋規
精密工学会学術講演会講演論文集, 2022S, 777-778, Mar. 2022

Reversible Thermal Expansion and Construction of Polyamide Fibers
Daisuke Kimura; Daichi Sakurai; Toshihira Irisawa; Kenji Tahara; Kentaro Takagi; Wataru Takarada; Haruhiko Watanabe; Masatoshi Shioya
Journal of Fiber Science and Technology, 78(5), 192-194, 2022

Effect of Introducing Long Chain Branching on Fiber Diameter and Fiber Diameter Distribution in Melt Blowing Process of Polypropylene
K. Iiba; W. Takarada; T. Kikutani
International Polymer Processing, 36(4), 403-409, Sep. 2021

Bamboo Charcoal/Poly(L-lactide) Fiber Webs Prepared Using Laser-Heated Melt Electrospinning.
Zongzi Hou; Nahoko Itagaki; Haruki Kobayashi; Katsufumi Tanaka; Wataru Takarada; Takeshi Kikutani; Midori Takasaki
Polymers, 13(16), Aug. 2021, Refereed

Effect of hydrogen-deuterium exchange in amide linkages on properties of electrospun polyamide nanofibers
Dongyang Li; Wataru Takarada; Minoru Ashizawa; Takuya Yamamoto; Hidetoshi Matsumoto
POLYMER, 229, Aug. 2021, Refereed

Mechanism for anisotropic thermal expansion of polyamide fibers
Daisuke Kimura; Toshihira Irisawa; Kentaro Takagi; Kenji Tahara; Daichi Sakurai; Haruhiko Watanabe; Wataru Takarada; Masatoshi Shioya
Sensors and Actuators B: Chemical, 344, 130262-130262, Jun. 2021, Refereed

Preparation of Perfluorosulfonated Ionomer Nanofibers by Solution Blow Spinning
Masahiro Shinkawa; Kazunori Motai; Keita Eguchi; Wataru Takarada; Minoru Ashizawa; Hiroyasu Masunaga; Noboru Ohta; Yuhei Hayamizu; Hidetoshi Matsumoto
MEMBRANES, 11(6), Jun. 2021, Refereed

Melt-Spun Fibers from Bio-Based Polyester-Fiber Structure Development in High-Speed Melt Spinning of Poly(ethylene 2,5-furandicarboxylate) (PEF).
Wataru Takarada; Kenichi Sugimoto; Hajime Nakajima; Hendrikus A Visser; Gert-Jan M Gruter; Takeshi Kikutani
Materials (Basel, Switzerland), 14(5), Mar. 2021, Refereed
Lead

In-situ Birefringence Measurement in Fiber and Film Processing
Wataru Takarada
Sen'i Gakkaishi, 2021

Structure and Properties of Poly(ethylene terephthalate) Fiber Webs Prepared via Laser-Electrospinning and Subsequent Annealing Processes.
Tomoki Tokuda; Ryo Tsuruda; Takuya Hara; Haruki Kobayashi; Katsufumi Tanaka; Wataru Takarada; Takeshi Kikutani; Juan P Hinestroza; Joselito M Razal; Midori Takasaki
Materials (Basel, Switzerland), 13(24), Dec. 2020, Refereed

Improvement of mechanical properties of biodegradable PHBH fibers through high-speed melt spinning process equipped with a liquid isothermal bath
Yuki Miyao; Wataru Takarada; Takeshi Kikutani
AIP Conference Proceedings, 2289, Nov. 2020

Crystallization Behavior of Bombyx mori Silkworm Fibroin in Liquid Silk in Static and Flow States: Influence of the Interactions of the Sericin Fractions with the Fibroin
Yutaka Kawahara; Kazuhiro Yoshida; Shouhei Okamura; Wataru Takarada; Taiyo Yoshioka; Hideaki Minami; Kaeko Kamei; Takeshi Kikutani
Journal of Macromolecular Science, Part B, 1-22, Nov. 2020, Refereed

Experimental and Numerical Analysis of Unstable Behavior of Melt Blowing Process
Wataru Takarada; Sho Hatano; Takeshi Kikutani
Journal of Fiber Science and Technology, 76(7), 208-216, Jul. 2020, Refereed
Lead, Corresponding

Fiber Structure, Tensile Behavior and Antibacterial Activity of Polylactide/Poly(butylene terephthalate) Bicomponent Fibers Produced by High-Speed Melt-Spinning
Yutaka Kawahara; Wataru Takarada; Masaki Yamamoto; Yasuhito Kondo; Kohji Tashiro; Takeshi Kikutani
Journal of Macromolecular Science, Part B: Physics, 59(7), 440-456, Jul. 2020

Improvement of the Mechanical Properties of Poly(Glycolic Acid) Fibers Through Control of Molecular Entanglements in the Melt Spinning Process
K. Saigusa; W. Takarada; T. Kikutani
Journal of Macromolecular Science, Part B: Physics, 59(6), 399-414, Jun. 2020

Analysis of fiber structure and properties of drawn fibers prepared by cold drawing in ethanol and subsequent hot drawing
Go Dongwoo; Takarada Wataru; Aneja Arun; Kikutani Takeshi
AIP Conference Proceedings, 2205, Jan. 2020

Dyeing Behavior and Multi-Functionalities of Polylactide/Poly (Ethylene Terephthalate) Conjugate Fibers Produced by High-Speed Melt-Spinning
Yutaka Kawahara; Wataru Takarada; Koji Takeda; Yoshimitsu Ikeda; Kouki Onda; Takeshi Kikutani
Journal of Macromolecular Science, Part B: Physics, 60(1), 63-75, 2020

High-Speed Melt Spinning of Polylactide/Poly(Butyleneterephthalate) Bicomponent Fibers: Mechanism of Fiber Structure Development and Dyeing Behavior
Yutaka Kawahara; Motohiro Hanada; Shota Onosato; Wataru Takarada; Midori Takasaki; Koji Takeda; Yoshimitsu Ikeda; Takeshi Kikutani
Journal of Macromolecular Science, Part B: Physics, 58(10), 828-846, Oct. 2019

Force evaluation of electrostatic gripper with arrayed fibers consisting of parallel and coaxial electrodes
Shigeki Saito; Kazuteru Kawamura; Radon Dhelika; Pasomphone Hemthavy; Kunio Takahashi; Wataru Takarada; Takeshi Kikutani
Smart Materials and Structures, 28(9), Aug. 2019

Continuous drawing of poly(ethylene terephthalate) in ethanol and agile functionalization through infusion
Dongwoo Go; Wataru Takarada; Arun Aneja; Takeshi Kikutani
Materials Today Communications, 19, 98-105, Jun. 2019

High-speed melt spinning of sheath/core bicomponent fibers of poly(L-lactide)s with different molecular weight
N. Roungpaisan; W. Takarada; T. Kikutani
AIP Conference Proceedings, 2065, Feb. 2019

Structure-property relationship for poly(ethylene terephthalate) fibers prepared through continuous drawing in ethanol
Dongwoo Go; Wataru Takarada; Arun Aneja; Takeshi Kikutani
AIP Conference Proceedings, 2065, Feb. 2019

In-situ observation of multiple-necking behavior in continuous cold drawing of PET filaments in ethanol
Dongwoo Go; Wataru Takarada; Arun Aneja; Takeshi Kikutani
AIP Conference Proceedings, 2055, Jan. 2019

Preparation of polylactide fibers consisting of highly oriented stereocomplex crystals
Nanjaporn Roungpaisan; Wataru Takarada; Takeshi Kikutani
Fiber Society's Fall 2019 Technical Meeting and Conference: Revitalizing the Textile Industry Through Innovative Research, Education, and Entrepreneurship, 2019

Fiber formation mechanism in high-speed melt spinning and spin-drawing processes of various polyether-esters
Gaku Kanazawa; Wataru Takarada; Takeshi Kikutani
Fiber Society's Fall 2019 Technical Meeting and Conference: Revitalizing the Textile Industry Through Innovative Research, Education, and Entrepreneurship, 2019

Peculiar crystallization and melting behavior of oriented amorphous poly(l-lactic acid) fibers revealed by high-speed dsc measurement
Yuki Fukuda; Wataru Takarada; Takeshi Kikutani
Fiber Society's Fall 2019 Technical Meeting and Conference: Revitalizing the Textile Industry Through Innovative Research, Education, and Entrepreneurship, 2019

Development of polylactide fibers consisting of highly oriented stereocomplex crystals utilizing high-speed bicomponent melt spinning process
Nanjaporn Roungpaisan; Wataru Takarada; Takeshi Kikutani
Journal of Fiber Science and Technology, 75(9), 119-131, 2019

Development of poly(lactic acid) fibers through high-speed melt spinning and annealing of equimolar blend of PLLA and PDLA
Nanjaporn Roungpaisan; Wataru Takarada; Takeshi Kikutani
Fiber Society 2019 Spring Conference - Renaissance of Fibers and Fibrous Materials: Science, Technology, Fashion, and New Applications, 86, 2019

Effect of biaxial-simultaneous stretching conditions on OTR and CO2 permeation of CO2 laser perforated poly(lactic acid) film
Wataru Takarada
Packaging Technology and Science, 31(8), 545-556, Aug. 2018, Refereed, Not invited

Effect of mutual interaction between high and low stereo-regularity components on structure formation in melt spinning process of isotactic polypropylene blend fibers
K. Kawai; W. Takarada; T. Kikutani
International Polymer Processing, 33(3), 387-396, Jul. 2018

High-performance structure of a coil-shaped soft-actuator consisting of polymer threads and carbon nanotube yarns
Hirotaka Inoue; Takayuki Yoshiyama; Masaki Hada; Daiki Chujo; Yoshitaka Saito; Takeshi Nishikawa; Yoshifumi Yamashita; Wataru Takarada; Hidetoshi Matsumoto; Yasuhiko Hayashi
AIP ADVANCES, 8(7), Jul. 2018, Refereed, Not invited

Preparation of polyether-ester elastomeric fibers through high-speed melt spinning and in-line drawing processes
Gaku Kanazawa; Wataru Takarada; Takeshi Kikutani
Fiber Society's Fall 2018 Technical Meeting and Conference: Advanced, Smart, and Sustainable Fibers, Materials, and Textiles, 2018

Structure and properties of biodegradable PHBH fibers prepared through high-speed melt spinning process equipped with a liquid isothermal bath
Yuki Miyao; Wataru Takarada; Takeshi Kikutani
Fiber Society's Fall 2018 Technical Meeting and Conference: Advanced, Smart, and Sustainable Fibers, Materials, and Textiles, 2018

Structure and properties of PET fibers prepared with infusion of ethanol in continuous cold drawing process
Dongwoo Go; Wataru Takarada; Arun Aneja; Takeshi Kikutani
Fiber Society's Fall 2018 Technical Meeting and Conference: Advanced, Smart, and Sustainable Fibers, Materials, and Textiles, 2018

Crystalline structure in high-speed melt spun fibers of blend of poly(L-lactic acid) and poly(D-lactic acid)
Nanjaporn Roungpaisan; Wataru Takarada; Takeshi Kikutani
Fiber Society 2018 Spring Conference: Fibers and Textiles for Value Creation in Connected Industries, 2018

PET fiber formation through continuous cold drawing process with infusion of organic solvent
Dongwoo Go; Wataru Takarada; Arun Aneja; Takeshi Kikutani
Fiber Society 2018 Spring Conference: Fibers and Textiles for Value Creation in Connected Industries, 2018

Structure and properties of poly(ethylene terephthalate) fiber webs prepared through laser-heated electrospinning and biaxial stretching processes
Tomoki Tokuda; Takuya Hara; Atsuya Odake; Wataru Kita; Midori Takasaki; Haruki Kobayashi; Katsufumi Tanaka; Wataru Takarada; Takeshi Kikutani
Fiber Society 2018 Spring Conference: Fibers and Textiles for Value Creation in Connected Industries, 2018

Microhole Formation Behavior of Polypropylene Film Using CO2 Laser Irradiation
Wataru Takarada
Journal of Fiber Science and Technology, 73(10), 240-250, Oct. 2017, Refereed, Not invited

Structural characterization of polypropylene/poly(lactic acid) bicomponent meltblown
Selven Rungiah; Renukarn Ruamsuk; Philippe Vroman; Wataru Takarada; Jean-Christophe Appert-Collin; Takeshi Kikutani
JOURNAL OF APPLIED POLYMER SCIENCE, 134(14), Apr. 2017, Refereed, Not invited

Fiber Structure Development of PHBH through Stress-Induced Crystallization in High-Speed Melt Spinning Process
Qing Qin; Wataru Takarada; Takeshi Kikutani
JOURNAL OF FIBER SCIENCE AND TECHNOLOGY, 73(2), 49-60, Feb. 2017, Refereed, Not invited

Structural analysis of melt-processed polyethylene products containing micro-fibrillated cellulose fibers
Yuta Sekiguchi; Wataru Takarada; Takeshi Kikutani
Fiber Society 2017 Fall Meeting and Technical Conference and International Symposium on Materials from Renewables, ISMR 2017: Advanced, Smart, and Sustainable Polymers, Fibers, and Textiles, 2017-, 2017

Differentiation of molecular chain entanglement structure through laser Raman spectrum measurement of High strength PET fibers under stress
D. Go; W. Takarada; T. Kikutani
17TH WORLD TEXTILE CONFERENCE AUTEX 2017 - SHAPING THE FUTURE OF TEXTILES, 254, 2017, Refereed, Not invited

Effect of Processing Conditions on Heat Seal Strength for Peelable Heat Sealing of Multilayered Polyethylene Films with Different Sealant Layers
Toshiharu Iwasaki; Wataru Takarada; Takeshi Kikutani
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS, 56(9), 709-723, 2017, Refereed, Not invited

Multiple Melting Behavior of High-Speed Melt Spun Polylactide Fibers
Midori Takasaki; Natsumi Fukushi; Miku Yoshizawa; Shota Onosato; Motohiro Hanada; Wataru Takarada; Yutaka Kawahara; Takeshi Kikutani; Haruki Kobayashi; Katsufumi Tanaka
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS, 56(3), 143-160, 2017, Refereed, Not invited

Structure and Properties of Melt-spun Fibers of Polyethylene Blended with Cellulose Fibers
Sekiguchi Yuta; Takarada Wataru; Kikutani Takeshi
PROCEEDINGS OF PPS-32: THE 32ND INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY, 1914, 2017, Refereed, Not invited

Influence of processing conditions on heat sealing behavior and resultant heat seal strength for peelable heat sealing of multilayered polyethylene films
Toshiharu Iwasaki; Wataru Takarada; Takeshi Kikutani
JOURNAL OF POLYMER ENGINEERING, 36(9), 909-916, Nov. 2016, Refereed, Not invited

Effect of Cross-Sectional Configuration on Fiber Formation Behavior in the Vicinity of Spinning Nozzle in Bicomponent Melt Spinning Process
Yiwen Chen; Wataru Takarada; Takeshi Kikutani
JOURNAL OF FIBER SCIENCE AND TECHNOLOGY, 72(7), 154-159, Jul. 2016, Refereed, Not invited

Fine Filament Formation Behavior of Polymethylpentene and Polypropylene near Spinneret in Melt Blowing Process
R. Ruamsuk; W. Takarada; T. Kikutani
INTERNATIONAL POLYMER PROCESSING, 31(2), 217-223, May 2016, Refereed, Not invited

Relationship between Cooling Conditions After Heat Sealing and Variation of Heat Seal Strength After Sterilization Treatment for Peelable Heat Sealing of Multilayered Polyethylene Films
岩崎 年晴; 宝田 亘; 鞠谷 雄士
成形加工 = Journal of the Japan Society of Polymer Processing : プラスチック成形加工学会誌, 28(1), 34-40, Jan. 2016, Refereed

Alkaline Hydrolysis Kinetics of Poly(ethylene terephthalate) Fibers
Yutaka Kawahara; Taiyo Yoshioka; Wataru Takarada; Takeshi Kikutani; Masaki Tsuji
JOURNAL OF FIBER SCIENCE AND TECHNOLOGY, 72(1), 9-16, Jan. 2016, Refereed, Not invited

Structure development of poly(ethylene terephthalate) undrawn filament upon cold drawing assisted with infusion of ethanol
Rina Khanum; Wataru Takarada; Arun Aneja; Takeshi Kikutani
Fiber Society 2016 Spring Conference: Textile Innovations - Opportunities and Challenges, 2016

Melt-blowing Conditions for Preparing Webs Consisting of Fine Fibers
Ruamsk Renukarn; Wataru Takarada; Takeshi Kikutani
PROCEEDINGS OF THE REGIONAL CONFERENCE GRAZ 2015 - POLYMER PROCESSING SOCIETY PPS: CONFERENCE PAPERS, 1779, 2016, Refereed, Not invited

Mutual Interaction between High and Low Stereo-regularity Components for Crystallization and Melting Behaviors of Polypropylene Blend Fibers
Kouya Kawai; Youhei Kohri; Wataru Takarada; Tomoaki Takebe; Toshitaka Kanai; Takeshi Kikutani
PROCEEDINGS OF PPS-31: THE 31ST INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY, 1713, 2016, Refereed, Not invited

Effect of Drawing Speed on Infusion and Drawing Behaviors of Poly(ethylene terephthalate) Filaments upon Cold Drawing in Ethanol
Rina Khanum; Dong Woo Go; Wataru Takarada; Arun Aneja; Takeshi Kikutani
SEN-I GAKKAISHI, 71(9), 273-283, Sep. 2015, Refereed, Not invited

Role of ethanol concentration on drawing and infusion behavior of poly(ethylene terephthalate) filaments upon cold drawing
Rina Khanum; Dong Woo Go; Wataru Takarada; Arun Aneja; Takeshi Kikutani
POLYMER, 70, 19-29, Jul. 2015, Refereed, Not invited

Fabrication of Fiber-Reinforced Single-Polymer Composites through Compression Molding of Bicomponent Fibers Prepared by High-Speed Melt Spinning Process
Yuan Jing Zhang; Wataru Takarada; Takeshi Kikutani
SEN-I GAKKAISHI, 71(5), 172-179, May 2015, Refereed, Not invited

Structure and properties of low-isotacticity polypropylene elastomeric fibers prepared by sheath-core bicomponent spinning: effect of localization of high-isotacticity component near the fiber surface
Youhei Kohri; Tomoaki Takebe; Yutaka Minami; Toshitaka Kanai; Wataru Takarada; Takeshi Kikutani
JOURNAL OF POLYMER ENGINEERING, 35(3), 277-285, Apr. 2015, Refereed, Not invited

Crystallization of poly(ethylene terephthalate) filaments by infusion of ethanol upon cold drawing
Rina Khanum; Wataru Takarada; Arun Aneja; Takeshi Kikutani
POLYMER, 59, 26-34, Feb. 2015, Refereed, Not invited

Application of high-speed melt spinning process for enhanced fiber structure formation of PHBH
Qing Qin; Wataru Takarada; Takeshi Kikutani
Fiber Society's Spring 2015 Conference, in conjunction with the 2015 International Conference on Advanced Fibers and Polymer Materials: Functional Fibers and Textiles - Program, 2015

Fiber Structure Formation in Melt Spinning of Bio-Based Aliphatic Co-polyesters
Qing Qin; Wataru Takarada; Takeshi Kikutani
PROCEEDINGS OF PPS-30: THE 30TH INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY, 1664, 2015, Refereed, Not invited

Effect of Polymer Viscosities on the Fiber Structure and Membrane Properties of Polypropylene/Polyethylene Bicomponent Hollow Fibers
Satoshi Sugiura; Wataru Takarada; Takeshi Kikutani
PROCEEDINGS OF PPS-30: THE 30TH INTERNATIONAL CONFERENCE OF THE POLYMER PROCESSING SOCIETY, 1664, 2015, Refereed, Not invited

Structure and Properties of Low-Isotacticity Polypropylene Elastomeric Fibers Prepared by Sheath-Core Bicomponent Spinning - Effect of the Composition of Sheath Layer with Constant High-Isotacticity Polypropylene Content
Youhei Kohri; Tomoaki Takebe; Yutaka Minami; Toshitaka Kanai; Wataru Takarada; Takeshi Kikutani
SEN-I GAKKAISHI, 70(9), 203-212, Sep. 2014, Refereed, Not invited

Compliant electrostatic chuck based on hairy microstructure (vol 22, 015019, 2013)
Shigeki Saito; Takeshi Kikutani; Kunio Takahashi; Wataru Takarada; Fumiaki Soda; Kenji Sawai; Radon Dhelika
SMART MATERIALS AND STRUCTURES, 23(7), Jul. 2014, Refereed, Not invited

Morphology and Crystallization Behavior of Nylon 6-Clay/Neat Nylon 6 Bicomponent Nanocomposite Fibers
Shahin Kazemi; Mohammad Reza Mohaddes Mojtahedi; Wataru Takarada; Takeshi Kikutani
JOURNAL OF APPLIED POLYMER SCIENCE, 131(6), Mar. 2014, Refereed, Not invited

Young Scientist Committee Foreward
Wataru Takarada
Sen'i Gakkaishi, 2014

Effects of Pre-annealing on the Uni- and Bi-axial Stretching Behavior of Poly(ethylene naphthalate) Films
T. Abe; W. Takarada; T. Kikutani
PROCEEDINGS OF PPS-29: THE 29TH INTERNATIONAL CONFERENCE OF THE POLYMER - CONFERENCE PAPERS, 1593, 68-71, 2014, Refereed, Not invited

Electrostatic chuck consisting of polymeric electrostatic inductive fibers for handling of objects with rough surfaces
Radon Dhelika; Kenji Sawai; Kunio Takahashi; Wataru Takarada; Takeshi Kikutani; Shigeki Saito
Smart Materials and Structures, 22(9), pp. 9, Sep. 2013, Refereed, Not invited

Compliant electrostatic chuck based on hairy microstructure
Shigeki Saito; Fumiaki Soda; Radon Dhelika; Kunio Takahashi; Wataru Takarada; Takeshi Kikutani
SMART MATERIALS AND STRUCTURES, 22(1), Jan. 2013, Refereed, Not invited

Evaluation of surface roughness development of polyamide 6/poly(ethylene terephthalate) blend fibers through fiber diameter measurement using three types of optical equipment
Wataru Takarada
Textile Research Journal, 2013

Mechanism of surface roughness development in melt spinning of blend fibers for artificial hair
Xiaoshi Xu; Yutaka Shirakashi; Junya Ishibashi; Wataru Takarada; Takeshi Kikutani
TEXTILE RESEARCH JOURNAL, 82(13), 1382-1389, Aug. 2012, Refereed, Not invited

Studies on High-Speed Melt-Spinning of Polypropylenes with Highly Controlled Stereo Regularities
Wataru Takarada
Sen'i Gakkaishi, 2012

Young Scientist Committee Foreword
Wataru Takarada
Sen'i Gakkaishi, 2012

Effect of the blending of high-tacticity component on the structure and properties of elastomeric fibers of low-tacticity polypropylene
Takahiro Sakurai; Wataru Takarada; Takeshi Kikutani; Tomoaki Takebe; Yohei Kohri; Toshitaka Kanai; Lixia Rong; Shigeyuki Toki; Benjamin S. Hsiao
International Symposium on New Frontiers in Fiber Materials Science, Conference Proceedings, 2011

Effect of the Control of Polymer Flow in the Vicinity of Spinning Nozzle on Mechanical Properties of Poly(ethylene terephthalate) Fibers
M. Masuda; W. Takarada; T. Kikutani
INTERNATIONAL POLYMER PROCESSING, 25(2), 159-169, May 2010, Refereed, Not invited

Resume of the Papers Receiving the JSPP Best Paper Award
KOHRI Yohei; TAKARADA Wataru; ITO Hiroshi; TAKEBE Tomoaki; MINAMI Yutaka; KANAI Toshitaka; KIKUTANI Takeshi
成形加工, 21(9), 527-527, Aug. 2009, Refereed

On-line Measurement Studies on Orientation Development and Characteristic Short-Period Diameter Fluctuation in High Speed In-line Drawing of Poly(ethylene terephthalate) Fiber
W-G Hahm; W. Takarada; H. Ito; T. Kikutani
INTERNATIONAL POLYMER PROCESSING, 24(3), 280-287, Jul. 2009, Not invited

Effect of Nozzle Diameter on Mechanical Properties of Poly(ethylene terephthalate) Fibers Prepared in Melt Spinning Process
Masato Masuda; Wataru Takarada; Takeshi Kikutani
SEN-I GAKKAISHI, 65(4), 118-126, Apr. 2009, Refereed, Not invited

9,9-Diarylfluorene-Based Poly(alkyl aryl ether)s: Synthesis and Property
Hideki Hayashi; Masayo Takizawa; Takayuki Arai; Keisuke Ikeda; Wataru Takarada; Takeshi Kikutani; Yasithito Koyama; Toshikazu Takata
POLYMER JOURNAL, 41(8), 609-615, 2009, Not invited

Effect of the Blending of Low Stereo-regularity Component in High-Speed Melt Spinning of Polypropylene
KOHRI Yohei; TAKARADA Wataru; ITO Hiroshi; TAKEBE Tomoaki; MINAMI Yutaka; KANAI Toshitaka; KIKUTANI Takeshi
Seikei-Kakou, 20(11), 831-839, 2008, Not invited

High-speed melt spinning of polyethylene terephthalate with periodic oscillation of take-up velocity
W Takarada; K Kazama; H Ito; T Kikutani
INTERNATIONAL POLYMER PROCESSING, 19(4), 380-387, Dec. 2004, Refereed, Not invited
Lead

Studies on high-speed melt spinning of noncircular cross-section fibers. II. On-line measurement of the spin line, including change in cross-sectional shape
W Takarada; H Ito; T Kikutani; N Okui
JOURNAL OF APPLIED POLYMER SCIENCE, 80(9), 1582-1588, May 2001, Refereed, Not invited
Lead

Studies on high-speed melt spinning of noncircular cross-section fibers. I. Structural analysis of As-spun fibers
W Takarada; H Ito; T Kikutani; N Okui
JOURNAL OF APPLIED POLYMER SCIENCE, 80(9), 1575-1581, May 2001, Refereed, Not invited
Lead

Studies on high-speed melt spinning of noncircular cross-section fibers. III. Modeling of melt spinning process incorporating change in cross-sectional shape
W Takarada; H Ito; T Kikutani; N Okui
JOURNAL OF APPLIED POLYMER SCIENCE, 80(9), 1589-1600, May 2001, Refereed, Not invited
Lead

On-line measurement of orientation development in the high-speed melt spinning process
T Kikutani; K Nakao; W Takarada; H Ito
POLYMER ENGINEERING AND SCIENCE, 39(12), 2349-2357, Dec. 1999, Not invited

カーボンナノチューブ(CNT)紡績糸とポリエチレンテレフタレート(PET)糸からなる複合撚線型ソフトアクチュエータの開発
吉山貴之; 井上寛隆; 齋藤慶考; 羽田真毅; 宝田亘; 松本英俊; 林靖彦
日本繊維機械学会年次大会研究発表論文集・講演要旨集, 71st, 2018

Analysis of Multiple Melting of High-Speed Melt Spun Polylactide Fibers Based on Kinetic Modeling
Wataru Takarada
Journal of Macromolecular Science - Physics, 57(2), 110 - 128, 2018, Not invited

Development of New Fiber Materials through Innovation of Fiber Spinning Technology
Wataru Takarada; Takeshi Kikutani
SEN-I GAKKAISHI, 72(7), 348 - 349, Jul. 2016, Refereed, Not invited

静電誘導ファイバー集積構造による曲面対応静電チャックの開発
澤井賢司; 宝田亘; 鞠谷雄士; 高橋邦夫; 齋藤滋規
2011年度精密工学会春季大会論文集, pp.877 - 878, Mar. 2011, Not invited
http://orcid.org/0000-0001-5663-975X

静電誘導ファイバーによる物体吸着機構の開発
早田史明; 宝田亘; 鞠谷雄士; 齋藤滋規
2010年度精密工学会春季大会論文集, pp.627 - 628, Mar. 2010, Not invited
http://orcid.org/0000-0001-5663-975X

Methods of Birefringence Measurement and Examples of Data Analysis
Takeshi Kikutani; Wataru Takarada
SEN-I GAKKAISHI, 66(1), P39 - P44, Jan. 2010, Refereed, Not invited

Methods of Birefringence Measurement and Examples of Data Analysis
KIKUTANI TAKESHI; TAKARADA WATARU
Sen-ito Kogyo, 66(1), P-39 - P-44 - P.44, 2010, Not invited

Effect of nozzle diameter on mechanical properties of poly(ethylene terephthalate) Fibers prepared in melt spinning process
Masato Masuda; Wataru Takarada; Takeshi Kikutani
Journal of Fiber Science and Technology, 65(4), 118 - 126, 2009, Not invited

海外だより アーヘン工科大学テキスタイル技術研究所
宝田亘
成形加工, 21(9), 559, 2009, Not invited

Utilization of Melt Spinning Process for the Preparation of Fibers with Optical Functionality
Advanced Polymeric Materials and Technology Symposium (APMT2010), 2010, Not invited

Effect of Drawing History on Birefringence Development during Sequential Biaxial Stretching of Cyclo Olefin Copolymer Film
Advanced Polymeric Materials and Technology Symposium (APMT2010), 2010, Not invited

Analysis on the Development of Surface Roughness in Melt Spinning of Fibers for Artificial Hair
Advanced Polymeric Materials and Technology Symposium (APMT2010), 2010, Not invited

Utilization of High-Speed Melt Spun Bicomponent Fibers for the Preparation of Reflective Polarizing Film
Polymer Processing Society 26th Annual Meeting, 2010, Not invited

On-line measurement of birefringence development during stretching of cyclo olefin copolymer films
Polymer Processing Society 26th Annual Meeting, 2010, Not invited

Sequential and Simultaneous Biaxial Stretching of Polypropylene Films Containing -form crystalline Structure
Polymer Processing Society 26th Annual Meeting, 2010, Not invited

Preparation of Elastomeric Fibers by Melt Spinning of Polypropylenes of Low Stereo-regularity
5th Pacific Rim Conference on Rheology (PRCR-5), 2010, Not invited

Utilization of Melt Spinning Process for the Preparation of Fibers with Optical Functionality
Advanced Polymeric Materials and Technology Symposium (APMT2010), 2010, Not invited

Effect of Drawing History on Birefringence Development during Sequential Biaxial Stretching of Cyclo Olefin Copolymer Film
Advanced Polymeric Materials and Technology Symposium (APMT2010), 2010, Not invited

Analysis on the Development of Surface Roughness in Melt Spinning of Fibers for Artificial Hair
Advanced Polymeric Materials and Technology Symposium (APMT2010), 2010, Not invited

Utilization of High-Speed Melt Spun Bicomponent Fibers for the Preparation of Reflective Polarizing Film
Polymer Processing Society 26th Annual Meeting, 2010, Not invited

On-line measurement of birefringence development during stretching of cyclo olefin copolymer films
Polymer Processing Society 26th Annual Meeting, 2010, Not invited

Sequential and Simultaneous Biaxial Stretching of Polypropylene Films Containing -form crystalline Structure
Polymer Processing Society 26th Annual Meeting, 2010, Not invited

Preparation of Elastomeric Fibers by Melt Spinning of Polypropylenes of Low Stereo-regularity
5th Pacific Rim Conference on Rheology (PRCR-5), 2010, Not invited

Birefringence Change during Sequential Biaxial Stretching of PET Film
2009, Not invited

Birefringende development during sequential biaxial stretching of Cyclo Olefin Copolymer film
JSPP '09 Technical Papers, 2009, Not invited

Analysis on the development of surface roughness in melt sinning of fibers for artificial hair
JSPP '09 Technical Papers, 2009, Not invited

Development of elastomeric fibers by melt spinning of polypropylenes with controlled stereo-regularity distribution
JSPP '09 Technical Papers, 2009, Not invited

Low temperature characteristics of melt-spun poly(ether ester) thermoplastic elastomer fibers
Fiber Preprints, Japan, 2009, Not invited

Development of fibers with optical functionality utilizing birefringence-controllability in high-speed melt spinning
Fiber Preprints, Japan, 2009, Not invited

Effect of molecular rigidity on structure development in melt spinning with water-quenching bath placed at extremely short air-gap
Fiber Preprints, Japan, 2009, Not invited

Stability of the melt spinning process of poly(ethylene terephthalate) with CO2 laser irradiation: Experiment and simulation
Fiber Preprints, Japan, 2009, Not invited

Analysis on the Development of Surface Roughness in Melt Spinning of Fibers for Artificial Hair
The 10th Asian Textile Conference, 2009, Not invited

Fiber Structure Development in Melt Spinning and Subsequent Drawing Process of Poly(vinilidene fluoride)/Polypropylene Bicomponent Fibers
Japanese-Sino Fiber Symposium 2009, 2009, Not invited

Measurement of Birefringence Variation during Sequential Biaxial Stretching of PET Film
The 10th Asian Textile Conference, 2009, Not invited

On-line Measurement of Birefringence Development during Sequential Biaxial Stretching of cyclo Olefin Copolymer Films
Polymer Processing Society Europe / Africa Regional Meeting, 2009, Not invited

Birefringence development during sequential biaxial stretching of Cyclo Olefin Copolymer film
2009, Not invited

Development of fibers with optical functionality utilizing birefringence-controllabillity in high-speed melt spinning of bicomponent fibers
成形加工シンポジア'09, 2009, Not invited

Studies on the stability of melt spinning process with CO2 laser irradiation
成形加工シンポジア'09, 2009, Not invited

PETフィルムの逐次二軸延伸過程における複屈折変化
日本繊維機械学会 第62回年次大会, 2009, Not invited

環状オレフィンコポリマーフィルムの逐次二軸延伸過程における複屈折変化
プラスチック成形加工学会 第２０回年次大会, 2009, Not invited

人口毛髪用繊維の溶融紡糸における表面粗面化挙動の解析
プラスチック成形加工学会 第２０回年次大会, 2009, Not invited

組成分布制御ポリプロピレンを用いた弾性糸の開発
プラスチック成形加工学会 第２０回年次大会, 2009, Not invited

溶融紡糸により作製したポリエーテルエステル系熱可塑性エラストマー繊維の低温特性
平成２１年度 繊維学会年次大会, 2009, Not invited

複合繊維の高速溶融紡糸における複屈折制御性を利用した光学機能繊維の開発
平成２１年度 繊維学会年次大会, 2009, Not invited

極微小エアーギャップ溶融紡糸における繊維構造形成機構に及ぼす分子鎖剛直性の影響
平成２１年度 繊維学会年次大会, 2009, Not invited

Stability of the melt spinning process of poly(ethylene terephthalate) with CO2 laser irradiation: Experiment and simulation
Fiber Preprints, Japan, 2009, Not invited

Analysis on the Development of Surface Roughness in Melt Spinning of Fibers for Artificial Hair
The 10th Asian Textile Conference, 2009, Not invited

Fiber Structure Development in Melt Spinning and Subsequent Drawing Process of Poly(vinilidene fluoride)/Polypropylene Bicomponent Fibers
Japanese-Sino Fiber Symposium 2009, 2009, Not invited

Measurement of Birefringence Variation during Sequential Biaxial Stretching of PET Film
The 10th Asian Textile Conference, 2009, Not invited

On-line Measurement of Birefringence Development during Sequential Biaxial Stretching of cyclo Olefin Copolymer Films
Polymer Processing Society Europe / Africa Regional Meeting, 2009, Not invited

環状オレフィンコポリマーフィルムの逐次二軸延伸過程における複屈折変化
日本レオロジー学会 第２１回 高分子加工技術討論会, 2009, Not invited

複合繊維の高速溶融紡糸における複屈折制御性を利用した光学機能繊維の開発
第１７回 プラスチック成形加工学会 秋季大会 （成形加工シンポジア'09）, 2009, Not invited

炭酸ガスレーザー照射溶融紡糸における紡糸線の安定性に関する研究
第１７回 プラスチック成形加工学会 秋季大会 （成形加工シンポジア'09）, 2009, Not invited

Process stability and structure development in melt spinning with water-quenching bath placed at extremely short air-gap
2008, Not invited

Improvement of mechanical properties of polyoxymethylene fibers by laser-irradiation heating in melt spinning process
2008, Not invited

Structure development in melt spinning of polyether-ester thermoplastic elastomers with different soft segment
2008, Not invited

Effect of Drawing History on Higher-Structure Development in Sequential Biaxial Stretching of PET Film
2008, Not invited

On-line birefringence measurement during biaxial elongation of cyclo olefin copolymer film
Fiber Preprints, Japan, 2008, Not invited

Mechanism of Fiber Formation in Melt Spinning of Polyester ether Elastomer
Polymer Processing Society 24th Annual Meeting, 2008, Not invited

Effect of Laser-irradiation Heating in Melt Spinning Process of Polyoxymethylene
2008, Not invited

Fiber Structure Development in Melt Spinning of Polyether-ester Elastomer
2008, Not invited

Melt Spinning of Elastomeric Fibers
Asian Workshop on Polymer Processing, 2008, Not invited

Morphological and Mechanical Characteristics of Melt-spun Poly(ether ester) Thermoplastic Elastomer Fibers at Room and Low Temperatures
Asian Workshop on Polymer Processing, 2008, Not invited

Effect of Drawing History on Higher-structure Development in Sequential Biaxial Stretching of PET Film
Asian Workshop on Polymer Processing, 2008, Not invited

Effect of the Blending of Low Stereoregularity Component on Spinnability and Fiber Property Development in High-speed Melt Spinning of Polypropylene
Polymer Processing Society American Regional Meeting, 2008, Not invited

Effect of Laser-Irradiation Heating in Melt Spinning Process of Polyoxymethylene on Structure and Properties of Resultant Fibers
Polymer Processing Society American Regional Meeting, 2008, Not invited

極微小エアーギャップ溶融紡糸における紡糸過程の安定化と繊維構造形成
第５７回高分子学会年次大会, 2008, Not invited

ポリオキシメチレンの溶融紡糸における紡糸線のレーザー加熱による繊維物性の改良
日本繊維機械学会第６１回年次大会, 2008, Not invited

・ｿソフトセグメントの異なるポリエーテルエステル系熱可塑性エラストマーの溶融紡糸と繊維構造形成
プラスチック成形加工学会 第１９回年次大会, 2008, Not invited

・ｿ逐次二軸延伸PET フィルムの高次構造形成に及ぼす延伸履歴依存性
プラスチック成形加工学会 第１９回年次大会, 2008, Not invited

ポリプロピレンの溶融紡糸における低立体規則性成分添加効果 －立体規則性，分子量依存性－
平成２０年度繊維学会年次大会, 2008, Not invited

環状オレフィンコポリマーフィルムの二軸伸長過程における複屈折変化
平成２０年度繊維学会年次大会, 2008, Not invited

Mechanism of Fiber Formation in Melt Spinning of Polyester ether Elastomer
Polymer Processing Society 24th Annual Meeting, 2008, Not invited

Effect of Laser-irradiation Heating in Melt Spinning Process of Polyoxymethylene
2008, Not invited

Fiber Structure Development in Melt Spinning of Polyether-ester Elastomer
2008, Not invited

Melt Spinning of Elastomeric Fibers
Asian Workshop on Polymer Processing, 2008, Not invited

Morphological and Mechanical Characteristics of Melt-spun Poly(ether ester) Thermoplastic Elastomer Fibers at Room and Low Temperatures
Asian Workshop on Polymer Processing, 2008, Not invited

Effect of Drawing History on Higher-structure Development in Sequential Biaxial Stretching of PET Film
Asian Workshop on Polymer Processing, 2008, Not invited

Effect of the Blending of Low Stereoregularity Component on Spinnability and Fiber Property Development in High-speed Melt Spinning of Polypropylene
Polymer Processing Society American Regional Meeting, 2008, Not invited

Effect of Laser-Irradiation Heating in Melt Spinning Process of Polyoxymethylene on Structure and Properties of Resultant Fibers
Polymer Processing Society American Regional Meeting, 2008, Not invited

環状オレフィンコポリマーフィルムの逐次二軸延伸過程における複屈折変化の延伸履歴依存性
第１６回プラスチック成型加工学会秋季大会 成形加工シンポジア’０８, 2008, Not invited

溶融紡糸法により作製したポリエーテルエステル系熱可塑性エラストマー繊維の室温及び低温での構造・力学特性評価
第１６回プラスチック成型加工学会秋季大会 成形加工シンポジア’０８, 2008, Not invited

Japan Society of Polymer Processing

Textile Machinery Society of Japan

Society of Fiber Science and Technology

成形加工学会

日本繊維機械学会

繊維学会

脱炭素・資源循環に資するバイオモノマテリアルを用いた革新的ナノ衣服材料の創製
科学研究費助成事業, 日本学術振興会, 基盤研究(B)
横浜国立大学
01 Apr. 2025 - 31 Mar. 2028

Functional Design of Nanofibers Based on the Synergetic Effects of Hydrogen/Deuterium Exchange and Polymer Chain Confinement
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B)
Tokyo Institute of Technology
01 Apr. 2023 - 31 Mar. 2027

安心・安全で持続可能な衣生活を指向した「天然由来」新奇ナノファブリックの創製
科学研究費助成事業, 日本学術振興会, 基盤研究(B)
京都工芸繊維大学
01 Apr. 2021 - 31 Mar. 2024

薄膜状電子デバイスの複曲面上実装を実現する微細毛柔軟静電吸着ハンドリングシステム
科学研究費助成事業, 日本学術振興会, 基盤研究(B)
東京工業大学
01 Apr. 2020 - 31 Mar. 2024

Preparation of innovative nano-smart textiles utilizing traditional Japanese textile processing technology
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B)
Kyoto Institute of Technology
01 Apr. 2018 - 31 Mar. 2021

Analysis on crystallization behaviors of bi-axially oriented films with various processing histories
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B)
Tokyo Institute of Technology
01 Apr. 2013 - 31 Mar. 2016

Analysis of molecular orientation of cyclo-olefin copolymer film during sequential-biaxial stretching.
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Grant-in-Aid for Young Scientists (B)
Tokyo Institute of Technology
2010 - 2011

Effect of flow history on higher order structure development in melt-processing of fibers and films
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Grant-in-Aid for Scientific Research (B)
Tokyo Institute of Technology
2006 - 2008