Doctor of Engineering

高分子材料化学（高分子駆動材料，膜輸送、形状記憶材料）

1976, Osaka Prefecture University, Graduate School, Division of Engineering

1970, Shinshu University, Faculty of Textile Science and Technology

Effect of plasticizer on the electric-field-induced adhesion of dielectric PVC gels
Ali, Mohammad; Hirai, Toshihiro
Journal of Materials Science, 47(8), 3777-3783, Apr. 2012

A Mechanism for Ultraviolet Light Irradiation-induced Whitening of Poly(vinyl alcohol) Film
Y. Okada, W. Kawanobe, N. Hayakawa, S. Tsubokura, R. Chujo, H. Fujimatsu, T. Takizawa, T. Hirai
Materiaru Raifu Gakkaishi, 24(1), 27-33, 2012

Electric-Field-Induced Actuation of Poly(vinyl alcohol) Microfibers
H. Xia, Y. Hashimoto, T. Hirai
J. Phys. Chem. C, 116, 23236-23242, 2012

Dielectric and Electromechanical studies on Plasticized PVC Fabricated from Plastisol
M. Ali, T. Hirai
Polym. Internal., in press, 2012

Enhancement of the actuation performance of dielectric triblock copolymers modified with additives
Yeonju Jang, Toshihiro Hirai, Takamitsu Ueki and Toshinori Kato
Polym. Internal., 61(2), 228-234, 2012

Relationship between electrode polarization and electrical actuation of dielectric PVC gel actuators
Ali, Mohammad; Hirai, Toshihiro
Soft Matter, 8(13), 3694-3699, 2012

Effects of pH and Temperature on Assembly of Multiresponsive Janus Microgels
Y. Umeda, T. Kobayashi, T. Hirai, D. Suzuki
Colloid Polym. Sci., 289(5-6), 729-737, 2011

実践的人材育成のための産学協同大学院教育プログラムの開発
阿部隆夫、深瀬康司、平井利博、藤本哲也、高橋伸英、森川英明
工学教育, 59(6), 97-103, 2011

Solvent-Induced Phase-Inversion and Electrical Actuation of Dielectric Copolymer Films
Yeonju Jang and Toshihiro Hirai
Mat. Sci. Appl., 2, 186-194, 2011

Influence of Plasticizer Content on the Transition of Electromechanical Behavior of PVC Gel Actuator
Mohammad Ali, Takamitsu Ueki, Daijiro Tsurumi, and Toshihiro Hirai
LANGMUIR, 27, 7902-7908, 2011

Direct Observation by Laser Scanning Confocal Microscopy of Microstructure and Phase Migration of PVC Gels in an Applied Electric Field
H. Xia, T. Ueki, T. Hirai
LANGMUIR, 27(3), 1207-1201, 2011

Performance of PMMA-PnBA-PMMA dielectric film actuator with controllable phase morphology
Yeonju Jang, Toshinori Kato, Takamitsu Ueki and Toshihiro Hirai,
Sensors and Actuators A: Physical, 168(2), 300-306, 2011

Characteristics of the creep-induced bending deformation of a PVC gel actuator by an electric field
Mohammad Ali, and Toshihiro Hirai
J. Mat. Sci., 46, 7681-7688, 2011

A control method for triblock copolymer actuators by nano-lamellar pattern
Yeonju Jang and Toshihiro Hirai
Soft Matter, 7, 10818-10823, 2011

The Effects of Adding Ionic Liquids to Plasticized PVC Gel Actuators
T. Hirai, H. Xia, K. Hirai
IEEEICMA, 2010, 71-76, 2010

Actuation Mechanism of Plasticizer PVC by Electric Field
H. Xia, M. Takasaki, T. Hirai
Sensor Actuat. A. Phys., 157, 307-312, 2010

Electric-Field-Induced Local Layer Structure in Plasticized PVC Actuator
H. Xia, T. Hirai
J. Phys. Chem. B, 114(33), 10756-10762, 2010

Whitening of polyvinyl alcohol used as restoration material for Shohekiga
Y. Okada, W. Kawanobe, N. Hayakawa, S. Tsubokura, R. Chujo, H. Fujimatsu, T. Takizawa, T. Hirai,
Polym. J., 43, 1-4, 2010

収縮型PVCゲルアクチュエータの構造と駆動特性
山野美咲、小川尚希、橋本稔、高崎緑、平井利博
日本ロボット学会誌, 27(7), 718-724, 2009

Electrical Response and Mechanical Behavior of Plasticized PVC Actuators
H. Xia, T. Ueki, T. Hirai
Adv. Mater. Res., 79-82, 2063-2066, 2009

Space Charge Distribution and Mechanical Properties in Plasticized PVC Actuators
H. Xia, T. Hirai
IEEE ICMA, 164-169, 2009

Space Charge Distribution and Mechanical Properties in Plasticized PVC Actuators
H. Xia, T. Hirai
IEEE ICMA, 164-169, 2009

Electrically Active Artificial Pupil Showing Amoeba-like Pseudopodial Deformation
T. Hirai, T. Ogiwara, K. Fujii, T. Ueki, K. Kinoshita, M. Takasaki
ADVANCED MATERIALS, 21, 2886-2888, 2009

Electrical Actuation of Textile Polymer Materials
T. Hirai, T. Ueki, M. Takasaki
J. Fiber Bioeng. Informatics, 1(1), 1-6, 2008

Effects of human hair and nail proteins and their films on rat mast cells
T. Fujii, S. Murai, K. Ohkawa, K. T. Hirai
J. Mater Sci.: Mater Med, 19, 2335-2342, 2008

Ultra-Fine Fibers Produced by Laser-Electrospinning
M. Takasaki, H. Fu, K. Nakata, Y. Ohkoshi, T. Hirai
SEN’I GAKKAISHI, 64(1), 29-31, 2008

Electrically Active Non-ionic Artificial Muscle
T. Hirai
J. Intelligent Mater. Sys. Struct., 18(2), 117-122, 2007

Behavior of bending motion of polyurethane film with carbon nanofiber as electrode
T. Hirai, M. H. Islam, M. Takasaki, M. Watanabe
J. Appl. Phys., 101(5), 053533-1-5, 2007

ATPase-coupled release control from polyion complex capsules encapsulating muscle proteins
K. Sugiura, K. Ohkawa, T. Hirai, T. Fujii
Macromol. Biosci., 7, 508-516, 2007

Preparation and properties of protein particles from human hair
J. Biol. Macromol., 6, 30-35, 2006

Thermal Switching of the Actuation Ability of an Electroactive Polymer Actuator
Watanabe, M; Wakimoto, N; Hirai, T; Yokoyama, M
Journal of Applied Polymer Science, 95(6), 1566-1570, 2005

The PVA solution structure-change effect for alpha-amylase specific activation
Takada, T; Hirai, T
Polymer Bulletin, 53(1), 63-71, 2004

A novel preparation method for capsules containing a high proportion of magnetite using a magnetic field
Takada, T; Hirai, T
Polymer Bulletin, 52(6), 437-442, 2004

Polypyrrole Film with Striped Pattern
Watanabe, M; Hirai, T
JOURNAL OF POLYMER SCIENCEPART B-POLYMER PHYSICS, 42(13), 2460-2466, 2004

Close Relationship between Bending-electrostrictive Response and Space Charge Distribution in a Polyurethane Film
Watanabe, M; Hirai, T
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES&REVIEW PAPERS, 43(4A), 1446-1448, 2004

Bending-electrostrictive Response of Polyurethane Films Subjected to a Reversed Electric Field
Watanabe, M; Hirai, T
Journal of Applied Polymer Science, 92(6), 3644-3650, 2004

Gel-coated electrodes for an ion drag pump
Watanabe, M; Hara, A; Hirai, T
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 11(1), 139-143, 2004

Space charge distribution in bending-electrostrictive polyurethane films doped with salts
Watanabe, M; Hirai, T
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 42(3), 523-531, 2004

Liquid-liquid Two-layer Electrohydrodynamic Flow System
Watanabe, M; Shirai, H; Hirai, T
SENSORS AND ACTUATORS B-CHEMICAL, 94(3), 267-270, 2003

Effects of plasticizers on novel electromechanical actuations with different poly(vinyl chloride) gels
Uddin, Z; Watanabe, M; Shirai, H; Hirai, T
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 41(18), 2119-2127, 2003

Bending Electrostriction and Space-charge Distribution in Polyurethane Films
Watanabe, M; Wakimoto, N; Shirai, H; Hirai, T
JOURNAL OF APPLIED PHYSICS, 94(4), 2494-2497, 2003

A Pumping Technique Using Electrohydrodynamic Flow Inside a Gel
Watanabe, M; Zheng, JM; Hara, A; Shirai, H; Hirai, T
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 10(1), 181-185, 2003

Wrinkled Polypyrrole Electrode for Electroactive Polymer Actuators
Watanabe, M; Shirai, H; Hirai, T
JOURNAL OF APPLIED PHYSICS, 92(8), 4631-4637, 2002

Ionic Polarization in Bending-electrostrictive Response of Polyurethane Films
Watanabe, M; Shirai, H; Hirai, T
JOURNAL OF APPLIED PHYSICS, 90(12), 6316-6320, 2001

Electrically Induced Creeping and Bending Deformation of Plasticized Poly(vinyl chloride)
Uddin, MZ; Yamaguchi, M; Watanabe, M; Shirai, H; Hirai, T
Chemistry Letters, (4), 360-361, 2001

Control of bending electrostriction in polyurethane films by doping with salt
Watanabe, M; Kato, T; Suzuki, M; Hirako, Y; Shirai, H; Hirai, T
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 39(10), 1061-1069, 2001

Hysteresis in Bending Electrostriction of Polyurethane Films
Watanabe, M; Suzuki, M; Hirako, Y; Shirai, H; Hirai, T
Journal of Applied Polymer Science, 79(6), 1121-1126, 2001

汎用高分子からなる柔軟駆動材料の電場変形
平井利博
高分子エレクトロニクス研究会（高分子マイクロアクチュエータ）, Jan-00, 9-15, 2000

Electroactive Nonionic Polymer Gel
- Swift Bending and Crawling Motion -
T. Hirai;J. Zheng;M. Watanabe;H. Shirai;M. Yamaguchi
Mat. Res. Soc. Symp. Proc., 600, 267-272, 2000

Electrically Induced Rapid Deformation of Nonionic Gel
Zheng, JM; Watanabe, M; Shirai, H; Hirai, T
Chemistry Letters, (5), 500-501, 2000

Bending electrostriction in polyurethane using in situ ultraviolet and visible spectroscopies
Watanabe, M; Shirai, H; Hirai, T; Suzuki, M; Hirako, Y
JOURNAL OF APPLIED PHYSICS, 88(9), 5328-5333, 2000

Well-defined Polynuclear Iron(II) Complexes Bridged by Back-to-back Ligands
M. Kimura;T. Horai;T. Muto;K. Hanabusa;H. Shirai
Chemistry Letters, 1129-1130, 1999

Effects of Polymer Networks on the Bending Electrostriction of Polyurethanes
M. Watanabe;N. Takahashi;T. Ueda;T. Ueda;M. Suzuki;Y. Amaike;T. Hirai
The Wiley Polymer Networks Group Review Series, 2, 214-221, 1999

Surface Modification of Polymer Hydrogel and its Effect on the Wall-shearing Stress in Water
M. H. Islam;H. Morikawa;N. Watanabe;M. Watanabe;T. Hirai
The Wiley Polymer Networks Group Review Series, 2, 430-438, 1999

Solvent-drag bending motion of polymer gel induced by electric field
T. Hirai;Jianming Zheng;M. Watanabe
Proceedings of SPIE, SPIE's 6th Annual International Symposium on Smart Structures and Materials, Electro-active Polymer Actuators and Devices, 3669, 209-217, 1999

Polymer gel generating bending and crawling motion
T. Hirai
WW-EAP Lett., 1(1), 4-5, 1999

PVC gel deforms like a tongueby applyingan electric field
T. Hirai;M. Watanabe;M. Yamaguchi
WW-EAP Lett., 1(2), 7-8, 1999

Bending Electrostriction in Polyurethanes Containing Ions as Contaminants or Additives
Watanabe, M; Kato, T; Suzuki, M; Amaike, Y; Hirai, T
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 38(8A), L872-L874, 1999

Electric Conduction in Bending Electrostriction of Polyurethanes
Watanabe, M; Hirai, T; Suzuki, M; Amaike, Y
Appl. Phys. Lett., 74(18), 2717-2719, 1999

Lens functions of polymer microparticle arrays
Hirai, T; Hayashi, S
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 153(1-3), 503-513, 1999

Polyurethane Actuators Using Bending Piezoelectricity and Bending Electrostriction
Watanabe, M; Hirai, T; Ueda, T; Suzuki, M; Amaike, Y
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 10(2), 100-104, 1999

Drag reduction on a polymer gel surface
Islam, MH; Watanabe, M; Morikawa, H; Hirai, T
JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING, 42(3), 634-639, 1999

Electro-striction effect of polyurethane elastomer (PUE) and its application to actuators
Kyokane, J; Ishimoto, H; Yugen, H; Hirai, T; Ueda, T; Yoshino, K
SYNTHETIC METALS, 103(1-3), 2366-2367, 1999

Application of conventional polymers to smart-materials
Hirai, T
Sen-i Gakkaishi, 55(1), P30-P35, 1999

Bending Deformation of Monolayer Polyurethane Film Induced by an Electric Field
Watanabe, M; Yokoyama, M; Ueda, T; Kasazaki, T; Hirai, M; Hirai, T
Chemistry Letters, (8), 773-774, 1997

Polyurethane elastomer actuator
Ueda, T; Kasazaki, T; Kunitake, N; Hirai, T; Kyokane, J; Yoshino, K
SYNTHETIC METALS, 85(1-3), 1415-1416, 1997

pH-Induced structure change of poly(vinyl alcohol) hydrogel crosslinked with poly(acrylic acid)
Hirai, T; Okinaka, T; Amemiya, Y; Kobayashi, K; Hirai, M; Hayashi, S
ANGEWANDTE MAKROMOLEKULARE CHEMIE, 240, 213-219, 1996

Polyurethane-elastomer-actuator
Hirai, T; Sadatoh, H; Ueda, T; Kasazaki, T; Kurita, Y; Hirai, M; Hayashi, S
ANGEWANDTE MAKROMOLEKULARE CHEMIE, 240, 221-229, 1996

Time-transient process of magnetically induced growth of nematic domains in a biological macromolecular liquid crystal
M. Hirai;T. Takizawa;S. Yabuki;T. Hirai;T. Ueki;Y. Sano
Phys. Rev. E, 51(2), 1263-1267, 1995

Aerosol-OT Reversed Micellar Formation at Low Water-Surfactant Ratio Studied by Synchrotron Radiation Small-Angle X-ray Scattering
HIRAI, M; KAWAIHIRAI, R; YABUKI, S; TAKIZAWA, T; HIRAI, T; KOBAYASHI, K; AMEMIYA, Y; OYA, M
JOURNAL OFPHYSICAL CHEMISTRY, 99(17), 6652-6660, 1995

Electrially Induced Reversible Structural Change of a Highly Swollen Polymer Gel Network
HIRAI, M; HIRAI, T; SUKUMODA, A; NEMOTO, H; AMEMIYA, Y; KOBAYASHI, K; UEKI, T
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 91(3), 473-477, 1995

Complexes of gangliosides with proteins in solution
HIRAI, M; TAKIZAWA, T; YABUKI, S; NAKATA, Y; MITOMO, H; HIRAI, T; SHIMIZU, S; FURUSAKA, M; KOBAYASHI, K; HAYASHI, K
Physica B, 213, 751-753, 1995

Ganglioside structure in solution
HIRAI, M; YABUKI, S; TAKIZAWA, T; NAKATA, Y; MITOMO, H; HIRAI, T; SHIMIZU, S; KOBAYASHI, K; FURUSAKA, M; HAYASHI, K
Physica B, 213, 748-750, 1995

Electrostriction of Highly Swollen Polymer Gel: Possible Application for Gel Actuator
HIRAI, T; NEMOTO, H; HIRAI, M; HAYASHI, S
Journal of Applied Polymer Science, 53(1), 79-84, 1994

Effect of branching of amylopectin on complexation with iodine as steric hindrance
Mitsuhiro Hirai;Toshihiro Hirai;Tatsuo Ueki
Polymer, 35(10), 2222-2225, 1994

GROWING PROCESS OF SCATTERING DENSITY FLUCTUATION OF A MEDIUM DISTANCE IN THE HYDROGEL OF POLY(VINYL ALCOHOL) UNDER STRETCHING
HIRAI, M; HIRAI, T; UEKI, T
Macromolecules, 27(4), 1003-1006, 1994

CONFORMATIONAL CHANGE ON POLYMER-CHAINS OF PARTIALLY FORMALIZED POLY(VINYL ALCOHOL)-IODINE COLOR COMPLEX STUDIED BY USING SYNCHROTRON-RADIATION SMALL-ANGLE X-RAY SOLUTION SCATTERING
HIRAI, M; HIRAI, T; UEKI, T
MAKROMOLEKULARE CHEMIE-MACROMOLECULAR CHEMISTRY AND PHYSICS, 194(10), 2885-2895, 1993

SHAPE MEMORIZING PROPERTIES OF A HYDROGEL OF POLY(VINYL ALCOHOL)
HIRAI, T; MARUYAMA, H; SUZUKI,T; HAYASHI, S
Journal of Applied Polymer Science, 45(10), 1849-1855, 1992

ファイバー産業の刷新に向けた戦略的産学官連携の新たなステージへ
平井利博
繊維学会誌, 66(10), 323, 2010

高分子ゲル／エラストマーを用いた人工筋肉、汎用高分子の駆動材料への応用、（１）柔軟高分子の駆動材料への応用
平井利博
加工技術, 45(5), 533-539, 2010

高分子ゲル／エラストマーを用いた人工筋肉、汎用高分子の駆動材料への応用、（２）誘電高分子ゲルの電場駆動
平井利博
加工技術, 45(6), 357-362, 2010

高分子ゲル／エラストマーを用いた人工筋肉、汎用高分子の駆動材料への応用、（３）誘電高分子の駆動材料への応用
平井利博
加工技術, 45(9), 533-539, 2010

ナノテク高機能ファイバー連携センターにおける協働開発推進の現状と課題
平井利博
Web Journal, 111, 0, 2010

繊維系汎用高分子の自立応答性材料への応用
平井利博
SEN'I GAKKAISHI(繊維と工業）, 55(1), 30-35, 1999

Electroactive Non-ionic Gel
J. Zheng;M. Hagiwara;M. Watanabe;T. Hirai
Proceedings of International Conference on Advanced Fiber Materials, October 3-5, Ueda, Japan, 287-288, 1999

Drag Reduction on theModified PVA Hydrogel Surface
M.H.Islam;M. Watanabe;H. Morikawa;T. Hirai
Proceedings ATC'99, The 5th Asian Textile Conference, 1, 91-94, 1999

Characteristic Behavior of Polymer Solution under an Electric Field
J. Zheng;M. Hagiwara;M. Watanabe;T. Hirai
Proceedings ATC'99, The5th Asian Textile Conference, Kyoto, Japan, 2, 1298-1300, 1999

Electric Conduction in Bending Electrostriction of Polyurethane
M. Watanabe;M. Suzuki;Y. Amaike;T. Hirai
Proceedings ATC'99, The Asian Textile Conference, Kyoto, Japan, 2, 1301-1302, 1999

The Effect of Surface Properties of Modified PVA Hydrogel Surface on Drag Reduction
Md. Hamidul Islam;Masashi Watanabe;Hirohisa Morikawa;Toshihiro Hirai
Proc. of International Conference on Advanced Fiber Materials October 3-5, Ueda, Japan, 321-322, 1999

Flow Characteristics in Polymer Hydrogel Tube as Model Blood Vessel
Hirohisa Morikawa;Toshihiro Hirai;Masayuki Sakurai;Shunichi Kobayashi
Proc. of the International Conference on New Frontiers in Biomechanical Engineering, 145-148, 1997

高分子ゲルのアクチュエータへの応用
平井利博
化学工学, 60(1), 42-47, 1996

改質ポリ塩化ビニル膜の光応答性
平井利博
高分子加工, 45(4), 178-182, 1996

高分子ゲルを用いた駆動材料
平井利博
日本機械学会誌, (4), 311-, 1996

電場・磁場応答性を有する高分子ゲル
平井利博
材料化学, 32(2), 59-63, 1995

pH-Induced Structure Change of Poly (vinyl alcohol) Crosslinked with Poly (acrylic acid)
T. Hirai;T. Okinaka;S. Hayashi;Y. Amemiya;K. Kobayashi;M. Hirai
Proceedings of International Symposium on Advanced Network Polymers Kansai University (ISANKU) (Dec. 5-7, Suita, Osaka, Japan), 59-60, 1995

Polyurethane Elastomer Actuator
T. Hirai;A. Ueda;T. Kasazaki;Y. Kurita;M. Yokoyama;S. Hayashi;M. Hira
Proceedings of International Symposium on Advanced Network Polymers Kansai University (ISANKU) (Dec. 5-7, Suita, Osaka, Japan), 61-62, 1995

電場で制御するポリウレタン
平井利博
工業材料, 42(2), 26-31, 1994

電場をかけると収縮を生じる弾性ポリウレタン
平井利博
ポリファイル, 31(360), 47-49, 1994

Photo-induced Current of Plasticized Poly (vinyl chloride-co-ethylene) Membrane Containing Photochromic Dye
T. Hirai;H. Hasaka;S. Hayashi
Proc. of ISF'94 (International Symp. on Fiber Sci. and Technol.), 271C01, 136-, 1994

Temperature Dependence of Electric Field Induced Actuation of Polyurethane Elastomers
H. Sadato;T. Hirai;S. Hayashi;A. Ueda;T. Kasazaki;M. Hirai
Proc. of ISF'94 (International Symp. on Fiber Sci. and Technol.), 261F12, 292-, 1994

Magneto-Response of PVA Gels Containing Magnetic Body
T. Takamizawa;T. Hirai;S. Hayashi;M. Hirai
Proc. of ISF'94 (International Symp. on Fiber Sci. and Technol.), 261F13, 293-, 1994

Photoinduced Rectification of SBP-Containing PVC Membrane
T. Hirai;H. Hasaka;S. Hayashi
Proc. of ISF'94 (International Symp. on Fiber Sci. and Technol.), 262B120, 362-, 1994

Mechanical and Electrical Properties of Poly Vinyl Alcohol Hydrogel as Sensor Material for Living Body
Hirohisa Morikawa;Toshihiro Hirai;Masayuki Sakurai
the Second World Congress of Biomechanics, 1, 117-, 1994

Handbook of Smart Textiles
Toshihiro Hirai, Hong Xia, Joint work, Electric Functions of Textile Polymers
Springer, 3-29 2015, Refereed
ISBN:978-9-814451-44-4

新材料・新素材シリーズ　未来を動かすソフトアクチュエーター
平井利博, 誘電ポリマーアクチュエーター、－膨潤ゲルから結晶性ポリマーフィルムまでー
シーエムシー, 第10章 2010

ファイバー : スーパーバイオミメティックス—近未来創造テクノロジー—（第3編）
平井利博
2006

未来型アクチュエータ材料・デバイス（第7章）
平井利博
2006

Smart fibers, fabrics and clothing, Ed.by Xiaoming Tao, Chapter 2, Electrically-active polymer materials ? application of non-ionic polymer gel and elastomers for artificial muscles
Toshihiro Hirai/Jeanming Zheng, Joint work
The Textile Institute, Woodhead Publishing Limitted, Cambridge England, 7-33頁 2001

Polymer Sensors and Actuators, Eds. Y. Osada and D. E. DeRossi, Chapter 8, Electrically Induced Strain in Polymer Gels Swollen with Non-Ionic Organic Solvents
T. Hirai/ M. Hirai, Joint work
Springer-Verlag Berlin Heidelberg, 245-258頁 2000

Polymer Sensors and Actuators, Edited by Y. Osada and D. E. DeRossi
Toshihiro Hirai;Mitsuhiro Hirai, Electrically Induced Strain in Polymer Gels Swollen with Non-Ionic Organic Solvents
Springer-Verlag Berlin Heidelberg, 245-258 2000

ゲルハンドブック
平井利博, 磁性流体
エヌ・ティー・エス, - 1997

長田義仁，王林監修：機能性高分子ゲルの開発と最新技術
平井利博, ケモメカニカル・エネルギー変換
シーエムシー, 236-247 1995

Characteristic Electrical Actuation of Plasticized Poly(vinyl chloride)-Various Function in Relation with the Dielectric Plasticizers-
T. Hirai, M. Ali, T. Ogiwara, D. Tsurumi, T. Ueki, H. Xia, M. Hashimoto
4th International Conference on Smart Materials Structures Systems(CIMTEC 2012), 2012, Invited

Electrical Mobility of Textile Polymers with Low Dielectric Constant, and their Future Prospect as Functional Materials
T. Hirai
5th Textile Bioengineering and Informatics Symposium (TBIS2012), 2012

Plasticized Poly(vinyl alcohol) Gels as Super Paraelectric Actuator
T. Hirai, M. Ali, H. Xia, H. Sato, T. Sato, T. Ueki
International Union of Material Research Societies-International Conference on Electronic Materials(IUMRS-ICEM2012), 2012

Effects of Plasticizers on Electromechanical Actuations of Textile Polymeric Materials
Mohammad Ali, Toshihiro Hirai
11th Asian Textile Conference (ATC11), 2011

Triblock copolymer Films as High-Performance Dielectric Elastomers: Effects of casting solvents on the morphology and electrical actuation
Yeonju Jang and Toshihiro Hirai
11th Asian Textile Conference (ATC11), 2011

Actuation performance induced by nano-phase morphology of dielectric elastomers
Yeonju Jang and Toshihiro Hirai
2011 World Congress on Advances in Structural Engineering and Mechanics (ASEM11+), 2011

Effects of Molecular Weight of PMMA-PnBA-PMMA Triblock Copolymers on Actuation Performance,
Yeonju Jang and Toshihiro Hirai
2nd International Conference on Nanotechnology: Fundamentals and Applications (ICNFA2011), 2011

Micro Structure of PVC Gels and their Electric Response Behavior
H. Xia, T. Hirai
International Conference of Future Textile 2010, Jul. 2010

Effect of electrical field on the layer separation and deformation of plasticized PVC actuators
H. Xia, T. Hirai
International Conference on Intelligent Textiles (ICIT) 33-34, Jun. 2010

Interrelationship between of phase structure and actuation behavior of acrylic triblock copolymer films
Yeonju Jang and Toshihiro Hirai
20th International Conference on Physical Organic Chemistry (ICPOC-20), 2010

Textile polymer materials as electroactive artificial muscles – from highly swollen gel to solid polymer films
Toshihiro Hirai, Hong Xia, Nobuaki Kataoka and Minoru Hashimoto
39th textile research Symposium, 2010, Invited

Dielectric Polymer Actuator for　Artificial Muscle　- From Soft Polymer Gel to Solid Polymer Film -
T. Hirai
5th Nagoya University - UCLA International Symposium, Shinshu University - Nagoya University Global COE Joint Symposium in Ueda, 2010

Preparation of Ultra-Fine Fibers by Laser-Electrospinning Process
M. Takasaki, S. Kinugawa, K. Morie, Y. Ohkoshi, T. Hirai
Asian Workshop on Polymer Processing 219-220, 2010

Effect of processing variables on the performance of Roter Spun yarn
M. Ali, T. Rowe
International Conference of Future Textile 2010, 2010

Building of an Energy Production System using Photosynthetic Proteins
T. Ueki, T. Hirai
International Conference of Future Textile 2010, 2010

Whitening of UV-irradiated PVA film and its surface structure
Y. Okada, T. Takizawa, T. Hirai, H. Fujimatsu
International Conference of Future Textile 2010, 2010

Morphology and physical behavior of acrylic triblock copolymer films circular actuato
Y.J. Jang, T. Kato, T. Hirai
International Conference of Future Textile 2010, 2010

Influence of Solvent Induced Morphology and Elasticity of Dielectric Electroactive Polymer Actuators
Yeonju Jang, Toshinori Kato and Toshihiro Hirai
International Conference on Intelligent Textiles (ICIT2010), 2010

Design and fabrication of stimuli-responsive Janus microgels
Daisuke Suzuki, Yoshitaka Umeda, and Toshihiro Hirai
PACHIFICHEM2010, 2010

Mechanical Response of Triblock Copolymer films prepared by Controlling the Casting Solvents
Y.J. Jang, D. Matoba, T. Hirai
3rd International Symposium onHigh-Tech Fiber Engineering 2009, Dec. 2009

Electromechanical Motion of PVC Containing Large Amount of Plasticizer
T. Hirai, K. Hirai, H. Xia
4th International Conference on Artificial Muscles 2009, Nov. 2009, Invited

Investigation on Dielectric Response of Plasticized PVC Actuators
H. Xia, T. Hirai
4th International Conference on Artificial Muscles 2009, Nov. 2009

Phase Separation in Thin Films of triblock copolymer: Effect of controlling casting solvent
Y.J. Jang, D. Matoba, T. Hirai
4th International Conference on Artificial Muscles 2009, Nov. 2009

Electrical Response and Mechanical Behavior of Plasticized PVC Actuators
H. Xia, T. Ueki, T. Hirai
2nd International Conference on Multi-functional Materials and Structures 2009, Oct. 2009

Advanced Fiber Engineering Education in Shinshu University
T. Hirai
10th Asian Textile Conference (ATC-10),, Sep. 2009

Building of an Energy Production System using Photosynthetic Proteins
T. Ueki, T. Hirai
10th Asian Textile Conference (ATC-10),, Sep. 2009

Impedance Properties and Actuation Behavior of Plasticized Polyvinyl Chloride Gels
H. Xia, T. Hirai
10th Asian Textile Conference (ATC-10),, Sep. 2009

Actuation Behavior and Mechanical Characteristics of Plasticized PVC by DC electric Field
H. Xia, T. Hirai
International Conference on Latest Advances in High-Tech Textiles and Textile-Based Materials 323-324, Sep. 2009

Space Charge Distribution and Mechanical Properties in Plasticized PVC Actuators
H. Xia, T. Hirai
2009 IEEE ICMA, Aug. 2009

Building of an Energy Production System using Photosynthetic Proteins
T. Ueki, T. Hirai
7th East Asian Symposium on Polymers For Advanced Technologies (EASPAT-2009), May 2009

Degradation of Poly(vinyl alcohol) Thin Films by UV Irradiation
Y. Okada, T. Takizawa,H. Usami, T. Hirai, H. Fujimatsu
7th East Asian Symposium on Polymers For Advanced Technologies (EASPAT-2009), May 2009

Electrical Response and Deformation Behavior of Plasticized PVC Actuators
H. Xia, T. Hirai
7th East Asian Symposium on Polymers For Advanced Technologies (EASPAT-2009), May 2009

Polymer-based Actuators: One of the Researches in Global COE Program on Advanced Fiber Engineering
T. Hirai, T. Ueki, M. Takasaki
7th East Asian Symposium on Polymers For Advanced Technologies (EASPAT-2009), May 2009

A Contraction Type Soft Actuator using Poly Vinyl Chloride Gel
M. Yamano, N. Ogawa, M. Hashimoto, M. Takasaki, T. Hirai
2008 IEEE, International Conference on Robotics and Biomimetics, Feb. 2009

High-Sensitive Chemical Sensor System Employing a Higher-mode Operative Micro Cantilever Sensor and an Adsorption Tube
T. Mihara, T. Ikehara, J. Lu, R. Maeda, T. Fukawa, M. Kimura, Y. Liu, T. Hirai
AIP Conf. Proc. 1137 79-82, 2009

Polyurethane Web Fabricated by Laser-Electrospinning
M. Takasaki, K. Sugihara, K. Hara, S. Kinugawa, K. Morie, Y. Ohkoshi, T. Hirai, T. Fujii, H. Shimizu, M. Saito
10th Asian Textile Conference (ATC-10), 2009

Characteristics Evaluation of PVC Gel Actuators
N. Ogawa, M. Hashimoto, M. Takasaki, T. Hirai
2009 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2009

Building of an Energy Production System using Photosynthetic Proteins
T. Ueki, T. Hrai
5th International Conference on Adovanced Fiber/Textile Materials 2009 in Ueda., 2009

Deformation of Dielectric Polymer of Plasticized PVC by Electric Field
H. Xia, M. Takasaki, T. Hirai
International Conference on Advanced Textile Materials&Manufacturing Technology 347-350, Oct. 2008

Japan’s Strategy for Science&Technology Innovation and How Shinshu Is Approaching to the Goal Through Global Collaboration
T. Hirai
International Conference on Advanced Textile Materials&Manufacturing Technology 580-583, Oct. 2008

Electrical Response Properties of Plasticized PVC Gel
K. Yamamoto, M. Takasaki, T. Hirai
5th Japan-China Conference on Mechatronics (JCCM2008), Aug. 2008

The actuation of membrane of PMMA soft polymer applying an electric field
T. Noma, M. Takasaki, T. Hirai
5th Japan-China Conference on Mechatronics (JCCM2008), Aug. 2008

Building of an Energy Production System using Photosynthetic Proteins
T. Ueki, T. Hirai
Textile Futures Conference 2008, Aug. 2008

Polymer film coated quartz crystal microbalances sensor for the detection of volatile organic compounds
Y. Liu, T. Mihara, M. Kimura, T. Ueki, T. Hirai
12th International Meeting on Chemical Sensors, Jul. 2008

（基調講演）
T.Hirai
TIBIS, 2008

Future Textile （基調講演）
T.Hirai
2008

Sensitivity Improvement of a Chemical Sensor System Employing a Micro Cantilever Sensor and an Adsorption Tube
T. Mihara, T. Ikehara, J. Lu, R. Maeda, T. Fukawa, M. Kimura, Y. Liu, T. Hirai
25th Sensor Symposium, 2008

Electroactive Textile Polymers as Artificial Muscles, - One of the Global COE Researches on Textile Polymer Materials -
T. Hirai
2nd International Scientific Conference, Textiles of the Future, 2008

Sports, Health, Eco, Function, Electrical Actuation of Textile Polymer Materials
T. Hirai
SMART-TBIS Joint Symposium 2008, 2008

Ultra-Fine Fibers Produced by Laser-Electrospinning
M. Takasaki, K. Nakata, H. Fu, S. Kinugawa, K. Morie, Y. Ohkoshi, M. Kimura, T. Hirai, Y. Gotoh, M. Nagura
Textile Futures Conf. 2008, 2008

Global COE of Shinshu University on Advanced Fiber Materials
T. Hirai
TIBIS 2008, 2008

Future Textile
T. Hirai
ENSAIT, 2008

（基調講演）
T.Hirai
2007

（基調講演）
T.Hirai
2007

（基調講演）
T.Hirai
Future Textile Conference, 2007

（基調講演）
T.Hirai
2007

VOC sensing of nanostructure-modified QCMs
M. Sugawara, T. Mihara, M. Kimura, T. Hirai, T. Mihara
24th Sensor Symposium, 2007

VOC sensing using the conductive polymer of electrochemical polymerization
T. Fujinami, M. Takasaki, M. Kimura, T. Hirai, T. Mihara
24th Sensor Symposium, 2007

The Influences of Electric Field on the Structure of Melt Electrospun Fiber
K. Nakata, M. Takasaki, S. Kinugawa, H. Fu, K. Morie, Y. Ohkoshi, M. Kimura, T. Hirai, Y. Gotoh, M. Nagura
4th International Conference on Advanced Fiber/Textile Materials 2007 in Ueda (ICAFTM2007), 2007

Building of the energy production system using photosynthetic proteins
T. Ueki, T. Hirai
4th International Conference on Advanced Fiber/Textile Materials 2007 in Ueda (ICAFTM2007), 2007

Global Networking on Textile Exchange
T. Hirai
ALTEX’2007, 2007

Preparation of Ultra-Fine Fiber Using Laser Electrospinning Process
M. Takasaki, K. Fujii, H. Fu, Y. Kogiso, Y. Ogawa, K. Nakata, Y. Ohkoshi, M. Kimura, T. Hirai, Y. Gotoh, M. Nagura
International nano-fiber symposium 267, 2007

Global COE of Shinshu University onAdvanced Fiber Materials
T. Hirai
Future Textile Conference, 2007

Global COE of Shinshu University on Advanced Fiber Materials
T. Hirai
Hangnyan University, 2007

Global COE of Shinshu University on Advanced Fiber Materials
T. Hirai
Kangnam University, 2007

Global COE of Shinshu University on Advanced Fiber Materials
T. Hirai
Zhejiang Polytechnic University, 2007

Construction of Bioreactor using Photosynthetic Proteins
T. Ueki, T. Hirai
2006 Sino-Japanese Fiber Symposium, Oct. 2006

Slip of Newtonian Fluid on the Polymer Gel Surface
Md.H.Islam;M.Watanabe;H.Morikawa;T.Hirai
日本機会学会2000年度年次大会講演論文集（Ｉ）, 2000

非イオン性高分子ゲルの電場による高速大変形
平井利博;鄭　建明;渡辺真志
日本機会学会2000年度年次大会講演論文集（Ｉ）, 2000

ＰＶＡゲルの電場応答型アクチュエータ（人工筋肉を目指して）
平井利博
繊維学会予稿集 55 105-108, 2000

Materials Research Society

IUPAC, American Chemical Society

Materials Society of Japan

Society of Photo-Optical Instrumentation Engineers

高分子ゲル、エラストマーを用いる柔軟自律応答材料（人工筋肉）