Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4731641 | Avalanche photo diode with quantum well layer | Yuichi Matsushima, Kazuo Sakai, Yukitoshi Kushiro, Shigeyuki Akiba, Katsuyuki Utaka | 1988-03-15 |
| 4729004 | Semiconductor photo device | Kazuo Sakai, Yuichi Matsushima, Takaya Yamamoto | 1988-03-01 |
| 4720835 | Integrated semiconductor light emitting element with oscillation wavelength and phase modulated light output | Shigeyuki Akiba, Katsuyuki Utaka, Yukitoshi Kushiro | 1988-01-19 |