Issued Patents All Time
Showing 26–50 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7202526 | Field effect transistor and application device thereof | Yoshiaki Aizawa | 2007-04-10 |
| 7145169 | Field-effect transistor, semiconductor device, and photo relay | Ryujiro Saso, Takashi Nishimura, Yoshiaki Aizawa | 2006-12-05 |
| 7064384 | Semiconductor device | Takuma Hara | 2006-06-20 |
| 7030416 | Micro electro mechanical system apparatus | Yoshiaki Aizawa | 2006-04-18 |
| 6967357 | Voltage-driven power semiconductor device | Hironobu Kon, Yoshinori Iwano, Shigeru Hasegawa, Michiaki Hiyoshi | 2005-11-22 |
| 6777746 | Field effect transistor and application device thereof | Yoshiaki Aizawa | 2004-08-17 |
| 6236069 | Insulated-gate thyristor | Takashi Shinohe, Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Ichiro Omura +1 more | 2001-05-22 |
| 6147368 | Voltage-driven power semiconductor device | Hironobu Kon, Yoshinoro Iwano, Shigeru Hasegawa, Michiaki Hiyoshi | 2000-11-14 |
| 5838026 | Insulated-gate semiconductor device | Ichiro Omura, Akio Nakagawa, Norio Yasuhara, Tomoki Inoue | 1998-11-17 |
| 5796125 | High breakdown voltage semiconductor device using trench grooves | Tomoko Matsudai, Akio Nakagawa | 1998-08-18 |
| 5793065 | Insulated-gate thyristor | Takashi Shinohe, Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Ichiro Omura +1 more | 1998-08-11 |
| 5689121 | Insulated-gate semiconductor device | Ichiro Omura, Akio Nakagawa, Norio Yasuhara, Tomoki Inoue | 1997-11-18 |
| 5637909 | Semiconductor device and method of manufacturing the same | Hiroomi Nakajima, Yasuhiro Katsumata, Hiroshi Iwai, Toshihiko Iinuma, Kazumi Inou +3 more | 1997-06-10 |
| 5585651 | Insulated-gate semiconductor device having high breakdown voltages | Ichiro Omura, Akio Nakagawa, Norio Yasuhara, Tomoki Inoue | 1996-12-17 |
| 5554862 | Power semiconductor device | Ichiro Omura, Kazuya Nakayama, Masakazu Yamaguchi | 1996-09-10 |
| 5510647 | Semiconductor device and method of manufacturing the same | Hiroomi Nakajima, Yasuhiro Katsumata, Hiroshi Iwai, Toshihiko Iinuma, Kazumi Inou +3 more | 1996-04-23 |
| 5464994 | Insulated-gate thyristor | Takashi Shinohe, Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Ichiro Omura +1 more | 1995-11-07 |
| 5448083 | Insulated-gate semiconductor device | Ichiro Omura, Akio Nakagawa, Norio Yasuhara, Tomoki Inoue | 1995-09-05 |
| 5381026 | Insulated-gate thyristor | Takashi Shinohe, Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Ichiro Omura +1 more | 1995-01-10 |
| 5376815 | Semiconductor device having bipolar-mos composite element pellet suitable for pressure contacted structure | Yoshio Yokota, Dai Karasawa | 1994-12-27 |
| 5329142 | Self turn-off insulated-gate power semiconductor device with injection-enhanced transistor structure | Ichiro Omura | 1994-07-12 |
| 5298769 | GTO thyristor capable of preventing parasitic thyristors from being generated | Ichiro Omura | 1994-03-29 |
| 5250446 | Method of manufacturing a semiconductor device by forming at least three regions of different lifetimes of carriers at different depths | Akihiko Osawa, Yoshiro Baba, Tetsujiro Tsunoda | 1993-10-05 |
| 5243205 | Semiconductor device with overvoltage protective function | Tetsujiro Tsunoda, Akihiko Osawa | 1993-09-07 |
| 5223442 | Method of making a semiconductor device of a high withstand voltage | Yoshio Yokota, Kazuo Watanuki, Yoshinari Uetake, Kazunobu Nishitani, Tsuneo Ogura | 1993-06-29 |