Issued Patents All Time
Showing 151–168 of 168 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4935386 | Method of manufacturing semiconductor device including substrate bonding and outdiffusion by thermal heating | Kaoru Imamura, Ryo Sato, Tadahide Hoshi | 1990-06-19 |
| 4928155 | Lateral conductivity modulated MOSFET | Hiromichi Ohashi, Yoshihiro Yamaguchi, Kiminori Watanabe, Thuneo Thukakoshi | 1990-05-22 |
| 4914496 | Gate turn-off thyristor with independent turn-on/off controlling transistors | Takashi Shinohe | 1990-04-03 |
| 4881120 | Conductive modulated MOSFET | Hiromichi Ohashi, Yoshihiro Yamaguchi, Kiminori Watanabe, Thuneo Thukakoshi | 1989-11-14 |
| 4878957 | Dielectrically isolated semiconductor substrate | Yoshihiro Yamaguchi, Kiminori Watanabe, Kazuyoshi Furukama, Kiyoshi Fukuda, Katsujiro Tanzawa | 1989-11-07 |
| 4866315 | Turn-on/off driving technique for insulated gate thyristor | Tsuneo Ogura | 1989-09-12 |
| 4821083 | Thyristor drive system | Tsuneo Ogura, Katsuhiko Takigami, Tomokazu Domon | 1989-04-11 |
| RE32784 | Conductivity modulated MOS transistor device | Kiminori Watanabe | 1988-11-15 |
| 4782372 | Lateral conductivity modulated MOSFET | Hiromichi Ohashi, Yoshihiro Yamaguchi, Kiminori Watanabe, Thuneo Thukakoshi | 1988-11-01 |
| 4760431 | Gate turn-off thyristor with independent turn-on/off controlling transistors | Takashi Shinohe | 1988-07-26 |
| 4719531 | Overcurrent protective circuit for modulated-conductivity type MOSFET | Chihiro Okado, Yoshihiro Yamaguchi | 1988-01-12 |
| 4717940 | MIS controlled gate turn-off thyristor | Takashi Shinohe, Katsuhiko Takigami, Hiromichi Ohashi | 1988-01-05 |
| 4700466 | Method of manufacturing semiconductor device wherein silicon substrates are bonded together | Hiromichi Ohashi, Tsuneo Ogura, Masaru Shimbo | 1987-10-20 |
| 4689647 | Conductivity modulated field effect switch with optimized anode emitter and anode base impurity concentrations | Hiromichi Ohashi | 1987-08-25 |
| 4680604 | Conductivity modulated MOS transistor device | Kiminori Watanabe | 1987-07-14 |
| 4672407 | Conductivity modulated MOSFET | Hiromichi Ohashi, Yoshihiro Yamaguchi, Kiminori Watanabe, Thuneo Thukakoshi | 1987-06-09 |
| 4567502 | Planar type semiconductor device with a high breakdown voltage | Tadashi Utagawa, Tsuneo Tsukakoshi | 1986-01-28 |
| 4243999 | Gate turn-off thyristor | Makoto Azuma | 1981-01-06 |