Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10003429 | Optical transmission device that transmits wavelength division multiplexed optical signal and optical transmission system | — | 2018-06-19 |
| 9991985 | Optical transmission control device and optical signal wavelength determination method | Tomoaki Takeyama | 2018-06-05 |