Issued Patents 2018
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10155687 | Optical fiber preform | Tetsuya Haruna, Yuki Kawaguchi | 2018-12-18 |
| 10031282 | Optical fiber | Hirotaka Sakuma, Keisei MORITA | 2018-07-24 |
| 10031285 | Multicore optical fiber | Tetsuya Nakanishi, Tetsuya Hayashi, Takashi Sasaki, Tetsuya Haruna | 2018-07-24 |
| 9932265 | Method of making an optical fiber containing an alkali metal in the core | Tetsuya Haruna, Masaaki Hirano, Tetsuya Nakanishi | 2018-04-03 |
| 9910216 | Optical fiber | Tetsuya Haruna, Yoshihiro Tukuda | 2018-03-06 |