Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11552451 | Semiconductor laser device | Takashi Nagira, Shinya Okuda | 2023-01-10 |
| 11385403 | Optical transmission device | — | 2022-07-12 |
| 9246622 | Semiconductor optical element, optical module and method of manufacturing semiconductor optical element | Asami UCHIYAMA, Koichi Akiyama, Yusuke Azuma, Yoshimichi Morita | 2016-01-26 |
| 8654430 | Electro-absorption modulator and optical semiconductor device | — | 2014-02-18 |
| 8457451 | Semiconductor optical element | Yoshimichi Morita, Chikara Watatani | 2013-06-04 |
| 7876799 | Integrated semiconductor optical device | Chikara Watatani | 2011-01-25 |
| 7733934 | Optical waveguide and semiconductor optical element | Yasunori Miyazaki, Toshitaka Aoyagi | 2010-06-08 |