Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9813183 | Optical transmission device and optical transmission system | Kentaro Nakamura, Satoru Okano, Yusaku Yamamoto | 2017-11-07 |
| 9742500 | Optical transmission apparatus and optical signal processing method | Norifumi Shukunami | 2017-08-22 |
| 9699531 | Switchable optical amplifier and optical transmission apparatus | Norifumi Shukunami | 2017-07-04 |