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, Mitsuteru YOSHIDA +1 more | 2019-12-31 |
| 10419127 | Phase compensation device, phase compensation method and communication apparatus | Etsushi Yamazaki, Hiroyukl Nouchi, Yasuharu Onuma, Tomohiro Takamuku, Katsuichi Oyama +4 more | 2019-09-17 |
| 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 |
| 10305675 | Data phase tracking device, data phase tracking method and communication device | Yasuharu Onuma, Masahiro Tachibana, Etsushi Yamazaki, Kazuhito Takei, Yuki Yoshida +2 more | 2019-05-28 |
| 10171173 | Optical signal transmission apparatus and optical signal transmission method | Seiji Okamoto, Koichi Ishihara, Etsushi Yamazaki, Mitsuteru YOSHIDA, Tomoyoshi Kataoka +3 more | 2019-01-01 |