Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825270 | Gate turn-off thyristor | Yukimasa Satou, Saburo Oikawa, Isamu Sanpei | 1989-04-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825270 | Gate turn-off thyristor | Yukimasa Satou, Saburo Oikawa, Isamu Sanpei | 1989-04-25 |