Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11448821 | Slant-type fiber grating | Manabu Shiozaki, Jun Kinugasa, Takemi Hasegawa | 2022-09-20 |
| 11316316 | Optical amplifier and multi-core optical fiber | Takemi Hasegawa, Tetsuya Hayashi, Yoshiaki Tamura, Hirotaka Sakuma | 2022-04-26 |