Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4648095 | Semiconductor laser | Tamotsu Iwasaki, Tsugunori Okumura | 1987-03-03 |
| 4636824 | Voltage-controlled type semiconductor switching device | Hajime Maeda, Hisayoshi Yanai, Ryo Dang, Naoyuki Shigyo | 1987-01-13 |