Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11667560 | Manufacturing method for optical fiber and manufacturing apparatus for optical fiber | — | 2023-06-06 |
| 9698557 | Optical fiber for amplification and optical fiber amplifier using the same | Kentaro Ichii, Katsuhiro Takenaga, Shoichiro Matsuo, Hirotaka Ono, Makoto Yamada | 2017-07-04 |
| 9673589 | Amplification optical fiber and optical fiber amplifier | Kentaro Ichii, Katsuhiro Takenaga, Shoichiro Matsuo, Hirotaka Ono, Makoto Yamada | 2017-06-06 |