Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12218480 | Semiconductor optical amplifier integrated laser | Atsushi Nakamura, Kaoru Okamoto, Masatoshi Arasawa, Tetsuya Nishida, Yasushi Sakuma +1 more | 2025-02-04 |
| 12100929 | Semiconductor optical device and method for manufacturing the same | Yasushi Sakuma, Shigetaka Hamada | 2024-09-24 |
| 12046870 | Optical semiconductor device | Atsushi Nakamura, Shigetaka Hamada, Ryu Washino, Shoko Yokokawa, Kouji Nakahara | 2024-07-23 |
| 12027822 | Optical semiconductor device | Atsushi Nakamura, Hayato TAKITA, Shigetaka Hamada, Masatoshi Arasawa, Ryu Washino | 2024-07-02 |
| 11962972 | Display device and speaker | Masahiro Takahashi, Tatsuya Sakata, Tetsuya Shiroishi, Shigemi Oguchi, Kazumasa Okamoto | 2024-04-16 |
| 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 |