Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11329764 | Error correction device, error correction method, and optical communication system | Fumiaki Nakagawa, Katsuichi Oyama, Yasuyuki Endoh, Etsushi Yamazaki, Yoshiaki Kisaka +1 more | 2022-05-10 |
| 10880193 | Error correction device, error correction method, and communication device | Mitsuteru YOSHIDA, Yasuyuki Endo, Etsushi Yamazaki, Katsuichi Oyama, Masahito Tomizawa | 2020-12-29 |
| 10608743 | Transmission characteristic compensation apparatus, transmission characteristic compensation method, and communication apparatus | Tomohiro Takamuku, Etsushi Yamazaki, Katsuichi Oyama, Kazuhito Takei, Masanori Nakamura +3 more | 2020-03-31 |
| 10523335 | Known signal detection method | Etsushi Yamazaki, Tomohiro Takamuku, Masahiro Tachibana, Mitsuteru YOSHIDA, Masahito Tomizawa +1 more | 2019-12-31 |
| 10419127 | Phase compensation device, phase compensation method and communication apparatus | Etsushi Yamazaki, Hiroyukl Nouchi, Tomohiro Takamuku, Katsuichi Oyama, Kazuhito Takei +4 more | 2019-09-17 |
| 10396895 | Compensation coefficient calculation method | Tomohiro Takamuku, Etsushi Yamazaki, Yuki Yoshida, Katsuichi Oyama, Akihiro Yamagishi | 2019-08-27 |
| 10389452 | Coherent optical reception device | Kengo Horikoshi, Mitsuteru YOSHIDA, Seiji Okamoto, Eiichi Hosoya, Etsushi Yamazaki +3 more | 2019-08-20 |
| 10374718 | Optical transmission distortion compensation device, optical transmission distortion compensation method, and communication device | Etsushi Yamazaki, Hiroyuki Nouchi, Tomohiro Takamuku, Katsuichi Oyama, Kazuhito Takei +3 more | 2019-08-06 |
| 10305675 | Data phase tracking device, data phase tracking method and communication device | Masahiro Tachibana, Etsushi Yamazaki, Kazuhito Takei, Yuki Yoshida, Masayuki Ikeda +2 more | 2019-05-28 |
| 10128818 | Data processor, data processing method and communication device | Etsushi Yamazaki, Kazuhito Takei, Osamu Ishida, Kengo Horikoshi, Mitsuteru YOSHIDA +2 more | 2018-11-13 |