Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051806 | Gate turn-off thyristor of multi-emitter type | Toshihide Ujihara, Shuroku Sakurada, Tadashi Sakaue | 1991-09-24 |
| 4868625 | Gate turn-off thyristor of multi-emitter type | Toshihide Ujihara, Shuroku Sakurada, Tadashi Sakaue | 1989-09-19 |
| 4612561 | Parallel-connected gate turn-off thyristors | Shin Kimura, Hiroshi Fukui, Shinji Yamada, Masayoshi Sato | 1986-09-16 |
| 4568838 | Control circuit for a semiconductor element with a control electrode | Kazuo Honda, Yasuo Matsuda | 1986-02-04 |
| 4456836 | Gate circuit for gate turn-off thyristor | Yasuo Matsuda, Kazuo Honda, Hiroshi Fukui, Hisao Amano | 1984-06-26 |