Issued Patents 2019
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10523335 | Known signal detection method | Yasuharu Onuma, Etsushi Yamazaki, Tomohiro Takamuku, Masahiro Tachibana, Masahito Tomizawa +1 more | 2019-12-31 |
| 10422719 | Chromatic dispersion estimating circuit, optical reception device and chromatic dispersion amount estimating method | Etsushi Yamazaki, Tomohiro Takamuku, Yuki Yoshida, Koki Shibahara, Kengo Horikoshi +1 more | 2019-09-24 |
| 10389452 | Coherent optical reception device | Kengo Horikoshi, Seiji Okamoto, Eiichi Hosoya, Etsushi Yamazaki, Yasuharu Onuma +3 more | 2019-08-20 |
| 10374718 | Optical transmission distortion compensation device, optical transmission distortion compensation method, and communication device | Yasuharu Onuma, Etsushi Yamazaki, Hiroyuki Nouchi, Tomohiro Takamuku, Katsuichi Oyama +3 more | 2019-08-06 |
| 10171173 | Optical signal transmission apparatus and optical signal transmission method | Seiji Okamoto, Koichi Ishihara, Etsushi Yamazaki, Tomoyoshi Kataoka, Kazushige Yonenaga +3 more | 2019-01-01 |