Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5038196 | Semiconductor device | — | 1991-08-06 |
| 5013689 | Method of forming a passivation film | Isamu Yamamoto | 1991-05-07 |
| 4877756 | Method of packaging a semiconductor laser and photosensitive semiconductor device | Isamu Yamamoto | 1989-10-31 |