Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10444428 | Optical fiber and optical transmission system | Takashi Matsui, Fumihiko Yamamoto, Nobutomo HANZAWA | 2019-10-15 |
| 10310177 | Photonic crystal fiber | Takashi Matsui, Fumihiko Yamamoto, Nobutomo HANZAWA | 2019-06-04 |