Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11175520 | Optical semiconductor device and method for manufacturing the same | Yuichiro Horiguchi, Satoshi Nishikawa, Koichi Akiyama, Keigo Fukunaga, Yosuke Suzuki | 2021-11-16 |
| 10985532 | Semiconductor optical waveguide and optical integrated element | Koichi Akiyama | 2021-04-20 |