Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11961948 | Optical semiconductor device | — | 2024-04-16 |
| 8273585 | Optical semiconductor device and method for manufacturing the same | Tsuyoshi Yamamoto | 2012-09-25 |
| 8093581 | Optical semiconductor device and method for manufacturing the same | Tsuyoshi Yamamoto | 2012-01-10 |
| 8009713 | Semiconductor laser | Manabu Matsuda, Takeshi Matsumoto | 2011-08-30 |
| 7924896 | Optical semiconductor device | Tsuyoshi Yamamoto, Manabu Matsuda, Mitsuru Ekawa, Shigekazu Okumura | 2011-04-12 |
| 7804870 | Semiconductor optical device and manufacturing method thereof | Mitsuru Ekawa, Tsuyoshi Yamamoto, Tatsuya Takeuchi | 2010-09-28 |