Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870028 | Method of making double gate static induction thyristor | Jun-ichi Nishizawa | 1989-09-26 |
| 4837608 | Double gate static induction thyristor and method for manufacturing the same | Jun-ichi Nishizawa | 1989-06-06 |