Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682044 | Reverse conducting thyristor with a planar-gate, buried-gate, or recessed-gate structure | Takashige Tamamushi, Yoshiaki Ikeda, Keun Sam Lee, Naohiro Shimizu, Masashi Yura +1 more | 1997-10-28 |
| 5665987 | Insulated gate static induction thyristor with a split gate type shorted cathode structure | Yoshinobu Ohtsubo, Toshio Higuchi, Makoto Iguchi, Takashige Tamamushi | 1997-09-09 |
| 5545905 | Static induction semiconductor device with a static induction schottky shorted structure | Naohiro Shimizu, Takashige Tamamushi | 1996-08-13 |
| 5461242 | Insulated gate static induction thyristor with a split gate type shorted cathode structure | Yoshinobu Ohtsubo, Toshio Higuchi, Makoto Iguchi, Takashige Tamamushi | 1995-10-24 |
| 5418376 | Static induction semiconductor device with a distributed main electrode structure and static induction semiconductor device with a static induction main electrode shorted structure | Naohiro Shimizu, Takashige Tamamushi | 1995-05-23 |
| 5352910 | Semiconductor device with a buffer structure | Takashige Tamamushi | 1994-10-04 |
| 5324966 | MOS-controlled thyristor | Takashige Tamamushi | 1994-06-28 |
| 4654679 | Static induction thyristor with stepped-doping gate region | — | 1987-03-31 |
| 4528745 | Method for the formation of buried gates of a semiconductor device utilizing etch and refill techniques | — | 1985-07-16 |