Issued Patents All Time
Showing 76–93 of 93 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5793065 | Insulated-gate thyristor | Takashi Shinohe, Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Mitsuhiko Kitagawa +1 more | 1998-08-11 |
| 5714775 | Power semiconductor device | Tomoki Inoue, Hiromichi Ohashi | 1998-02-03 |
| 5689121 | Insulated-gate semiconductor device | Mitsuhiko Kitagawa, Akio Nakagawa, Norio Yasuhara, Tomoki Inoue | 1997-11-18 |
| 5640040 | High breakdown voltage semiconductor device | Akio Nakagawa, Norio Yasuhara, Tomoko Matsudai, Yoshihiro Yamaguchi, Hideyuki Funaki | 1997-06-17 |
| 5637909 | Semiconductor device and method of manufacturing the same | Hiroomi Nakajima, Yasuhiro Katsumata, Hiroshi Iwai, Toshihiko Iinuma, Kazumi Inou +3 more | 1997-06-10 |
| 5592014 | High breakdown voltage semiconductor device | Hideyuki Funaki, Akio Nakagawa, Norio Yasuhara, Tomoko Matsudai, Yoshihiro Yamaguchi | 1997-01-07 |
| 5585651 | Insulated-gate semiconductor device having high breakdown voltages | Mitsuhiko Kitagawa, Akio Nakagawa, Norio Yasuhara, Tomoki Inoue | 1996-12-17 |
| 5554862 | Power semiconductor device | Mitsuhiko Kitagawa, Kazuya Nakayama, Masakazu Yamaguchi | 1996-09-10 |
| 5548150 | Field effect transistor | Akio Nakagawa, Tadashi Sakai, Masayuki Sekimura, Hideyuki Funaki | 1996-08-20 |
| 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, Mitsuhiko Kitagawa +1 more | 1995-11-07 |
| 5448083 | Insulated-gate semiconductor device | Mitsuhiko Kitagawa, Akio Nakagawa, Norio Yasuhara, Tomoki Inoue | 1995-09-05 |
| 5438220 | High breakdown voltage semiconductor device | Akio Nakagawa, Norio Yasuhara, Tomoko Matsudai, Yoshihiro Yamaguchi, Hideyuki Funaki | 1995-08-01 |
| 5381026 | Insulated-gate thyristor | Takashi Shinohe, Kazuya Nakayama, Minami Takeuchi, Masakazu Yamaguchi, Mitsuhiko Kitagawa +1 more | 1995-01-10 |
| 5329142 | Self turn-off insulated-gate power semiconductor device with injection-enhanced transistor structure | Mitsuhiko Kitagawa | 1994-07-12 |
| 5323041 | High-breakdown-voltage semiconductor element | Ken'ichi Matsushita, Akio Nakagawa | 1994-06-21 |
| 5298769 | GTO thyristor capable of preventing parasitic thyristors from being generated | Mitsuhiko Kitagawa | 1994-03-29 |
| 5103415 | Computer-simulation technique for numerical analysis of semiconductor devices | Shin Nakamura, Akio Nakagawa | 1992-04-07 |