Issued Patents 2018
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10158422 | Apparatus and method for estimating optical transmission performance | Masatake Miyabe, Setsuo Yoshida, Yasuhiko Aoki, Toru Katagiri, Goji Nakagawa +2 more | 2018-12-18 |
| 10020878 | Optical signal-to-noise ratio monitor and method for measuring optical signal to-noise ratio | Yasuhiko Aoki, Hiroki Oi, Satoru Okano, Yoichi Akasaka, Jeng-Yuan Yang | 2018-07-10 |
| 9923632 | Optical transmission apparatus, optical transmission system, and method of controlling output of optical signal | Tomohiro Yamauchi | 2018-03-20 |
| 9917639 | Optical signal quality monitoring apparatus, optical signal quality monitoring method and optical repeater | Yasuhiko Aoki | 2018-03-13 |
| 9906296 | Network controller and signal quality estimating method | Yasuhiko Aoki, Takeshi Hoshida, Hisao Nakashima, Hiroki Oi | 2018-02-27 |
| 9887774 | Device and method for monitoring transmission characteristics | GUOXIU HUANG, Yasuhiko Aoki, Setsuo Yoshida | 2018-02-06 |