Issued Patents 2019
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10261350 | Optical transmitting apparatus and optical level control method | Goji Nakagawa, Yoshio Hirose | 2019-04-16 |
| 10230463 | Transmission device and method for measuring optical transmission characteristics | GUOXIU HUANG, Yasuhiko Aoki, Shoichiro Oda, Zhenning Tao, Setsuo Yoshida | 2019-03-12 |
| 10200132 | Optical communication system, transmission station, and method of optical communication | Yasuhiko Aoki, Goji Nakagawa | 2019-02-05 |
| 10187172 | Optical transport apparatus and optical-wavelength defragmenting method | Goji Nakagawa, Yasuhiko Aoki | 2019-01-22 |