TH

Takahiro Hirai

KT Kabushiki Kaisha Toshiba: 40 patents #501 of 21,451Top 3%
HC Hitachi Koki Co.: 5 patents #222 of 888Top 25%
SO Sony: 3 patents #10,744 of 25,231Top 45%
KC Koki Holdings Co.: 3 patents #64 of 215Top 30%
Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%
Toshiba Memory: 3 patents #621 of 1,971Top 35%
NC Nidek Co.: 1 patents #224 of 365Top 65%
OU Osaka University: 1 patents #681 of 1,984Top 35%
Kioxia: 1 patents #1,054 of 1,813Top 60%
TI Takasago International: 1 patents #239 of 465Top 55%
IC Idemitsu Kosan Co.: 1 patents #699 of 1,237Top 60%
📍 Ibaraki, JP: #53 of 6,779 inventorsTop 1%
Overall (All Time): #36,791 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 51–62 of 62 patents

Patent #TitleCo-InventorsDate
5968290 Permanent magnet material and bonded magnet Shinya Sakurada, Tomohisa Arai, Keisuke Hashimoto 1999-10-19
5968289 Permanent magnetic material and bond magnet Shinya Sakurada, Tomohisa Arai, Keisuke Hashimoto 1999-10-19
5892519 Information display device for displaying variation of environment 1999-04-06
5716462 Magnetic material and bonded magnet Shinya Sakurada, Akihiko Tsutai, Yoshitaka Yanagita, Masashi Sahashi, Tomohisa Arai +1 more 1998-02-10
5658396 Magnetic material Shinya Sakurada, Akihiko Tsutai 1997-08-19
5601662 Method of introducing magnetic anisotropy into magnetic material Tadahiko Kobayashi, Masashi Sahashi 1997-02-11
5549766 Magnetic material Akihiko Tsutai, Shinya Sakurada 1996-08-27
5482573 Magnetic material Shinya Sakurada, Akihiko Tsutai, Masashi Sahashi, Hideo Nagai, Tsutomu Yamashita 1996-01-09
5480495 Magnetic material Shinya Sakurada, Akihiko Tsutai, Masashi Sahashi 1996-01-02
5456769 Magnetic material Shinya Sakurada, Akihiko Tsutai 1995-10-10
4891399 Thermoplastic resin-based molding composition Hideo Ohkawa, Masakuni Chikushi, Hironori Nakamura, Shinji Funayama, Takashi Hashimoto 1990-01-02
4234469 Flame retarding polyolefin resin blend composition Yuzo Ohta, Norio Sugi, Osamu Isogai, Hidehiko Kaji 1980-11-18