Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11942761 | Optical semiconductor integrated element | — | 2024-03-26 |
| 11211768 | Semiconductor optical integrated device | Keisuke Matsumoto | 2021-12-28 |
| 9246622 | Semiconductor optical element, optical module and method of manufacturing semiconductor optical element | Asami UCHIYAMA, Koichi Akiyama, Yusuke Azuma, Takeshi Yamatoya | 2016-01-26 |
| 8457451 | Semiconductor optical element | Takeshi Yamatoya, Chikara Watatani | 2013-06-04 |