Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12426289 | Semiconductor device | Shigeki Sato, Soichi YOSHIDA, Kouji Asahi | 2025-09-23 |
| 11855077 | Semiconductor device | Shigeki Sato, Tadashi Miyasaka | 2023-12-26 |
| 11810914 | Semiconductor device | Tomoyuki Obata, Soichi YOSHIDA, Tetsutaro Imagawa | 2023-11-07 |
| 11749675 | Semiconductor device | Hitoshi Abe, Takashi Shiigi, Takeshi Fujii, Koh Yoshikawa, Tetsutaro Imagawa +2 more | 2023-09-05 |
| 11239234 | Semiconductor device | Tomoyuki Obata, Soichi YOSHIDA, Tetsutaro Imagawa | 2022-02-01 |
| 10916541 | Semiconductor device | Hitoshi Abe, Takashi Shiigi, Takeshi Fujii, Koh Yoshikawa, Tetsutaro Imagawa +2 more | 2021-02-09 |
| 10003249 | Insulated gate semiconductor device including switchable insulated gate semiconductor element | — | 2018-06-19 |
| 9941397 | Semiconductor device and method of manufacturing semiconductor device | Takeshi Fujii | 2018-04-10 |
| 9761663 | Semiconductor device | Hitoshi Abe, Kenji Kouno, Hiromitsu Tanabe | 2017-09-12 |
| 9466711 | Semiconductor device | Hitoshi Abe, Takashi Shiigi, Takeshi Fujii, Koh Yoshikawa, Tetsutaro Imagawa +2 more | 2016-10-11 |
| 9443942 | Semiconductor device | — | 2016-09-13 |
| 9437678 | Fabrication method of semiconductor device, evaluation method of semiconductor device, and semiconductor device | Hitoshi Abe, Kenji Kouno, Hiromitsu Tanabe | 2016-09-06 |
| 9236460 | Semiconductor device having a diffusion region | Hiromi Koyama, Takashi Shiigi, Akihiro Fukuchi, Toshiyuki Matsui | 2016-01-12 |
| 9059238 | Semiconductor device | Naoko Kurata, Hitoshi Abe | 2015-06-16 |
| 8691635 | Fabrication method of semiconductor device | Takeshi Fujii, Satoshi Kamijima, Makoto Asai | 2014-04-08 |
| 8309409 | Method for fabricating trench gate to prevent on voltage parasetic influences | — | 2012-11-13 |
| 8253222 | Semiconductor device and fabrication method of semiconductor device | Takeshi Fujii, Satoshi Kamijima, Makoto Asai | 2012-08-28 |
| 8198697 | Semiconductor device | Hitoshi Abe, Takeshi Fujii | 2012-06-12 |
| 7462911 | Insulated gate semiconductor device | Hiroki Wakimoto, Masahito Otsuki | 2008-12-09 |
| 7151297 | Insulated gate semiconductor device | Hiroki Wakimoto, Masahito Otsuki | 2006-12-19 |
| 6737705 | Insulated gate semiconductor device | Yuichi Onozawa, Masahito Otsuki, Hiroki Wakimoto | 2004-05-18 |
| 6621120 | Semiconductor device | Masahito Otsuki, Mitsuaki Kirisawa, Takashi Yoshimura | 2003-09-16 |
| 6559023 | Method of fabricating a semiconductor device with phosphorous and boron ion implantation, and by annealing to control impurity concentration thereof | Masahito Otsuki, Mitsuaki Kirisawa, Takashi Yoshimura | 2003-05-06 |
| 5869372 | Method of manufacturing a power semiconductor device | Tatsuhiko Fujihira, Takeyoshi Nishimura, Kazutoshi Sugimura, Masao Yoshino, Takashi Kobayashi | 1999-02-09 |
| 5559355 | Vertical MOS semiconductor device | Tomoyuki Yamazaki, Shigeyuki Obinata, Masahito Otsuki, Tatsuhiko Fujihira | 1996-09-24 |