Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11493690 | Optical fiber line, module, and method for manufacturing optical fiber line | Masato Suzuki, Yoshinori Yamamoto, Takemi Hasegawa | 2022-11-08 |
| 11345627 | Method of manufacturing optical fiber preform and optical fiber preform | Tetsuya Haruna, Masaaki Hirano, Yuki Kawaguchi | 2022-05-31 |
| 11316316 | Optical amplifier and multi-core optical fiber | Takemi Hasegawa, Tetsuya Hayashi, Hirotaka Sakuma, Shigehiro Nagano | 2022-04-26 |
| 11280958 | Optical fiber, colored optical fiber, and optical transmission system | Yuki Kawaguchi, Hirotaka Sakuma | 2022-03-22 |