Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10634974 | Wavelength converter, wavelength conversion method, and transmission device | Tomoaki Takeyama | 2020-04-28 |
| 10608775 | Optical transmission apparatus, optical transmission method, and optical transmission system | Shinji Komiya, Makoto Hasegawa, Tomohiro Yamauchi, Tomoyuki Kato | 2020-03-31 |