Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4325114 | Gate controlling circuit for a thyristor converter | Sumio Kobayashi, Tadashi Takahashi | 1982-04-13 |
| 4320445 | Gate control circuit for thyristor converter | Sumio Kobayashi, Tadashi Takahashi, Takami Sakai | 1982-03-16 |
| 4313156 | Gate controlling circuit for a thyristor converter | Sumio Kobayashi, Tadashi Takahashi | 1982-01-26 |