Issued Patents 2023
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11817674 | Semiconductor optical device and method for manufacturing the same | Ryosuke Nakajima, Yasushi Sakuma | 2023-11-14 |
| 11764377 | Fuel cell system | Fumihisa Ishiguro, Kiyoshi Yoshinaga | 2023-09-19 |
| 11710940 | Semiconductor optical device | Yasushi Sakuma, Kouji Nakahara | 2023-07-25 |
| 11710983 | Electric power system and server | Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano | 2023-07-25 |
| 11552448 | Semiconductor optical amplifier integrated laser | Atsushi Nakamura, Kaoru Okamoto, Masatoshi Arasawa, Tetsuya Nishida, Yasushi Sakuma +1 more | 2023-01-10 |