Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11817674 | Semiconductor optical device and method for manufacturing the same | Yasushi Sakuma, Shigetaka Hamada | 2023-11-14 |
| 11552448 | Semiconductor optical amplifier integrated laser | Atsushi Nakamura, Kaoru Okamoto, Masatoshi Arasawa, Tetsuya Nishida, Yasushi Sakuma +1 more | 2023-01-10 |