Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12040834 | Adaptive equalizer, adaptive equalization method, and optical communication system | Mitsuteru YOSHIDA, Tsutomu Takeya, Tomoharu Senboku | 2024-07-16 |
| 12028109 | Adaptive equalizer, equalization method, and optical communication system | Mitsuteru YOSHIDA, Tomoharu Semboku, Tsutomu Takeya | 2024-07-02 |
| 11611395 | Adaptive equalization device, adaptive equalization method, and communication device | Mitsuteru YOSHIDA, Tsutomu Takeya, Kazuhito Takei, Katsuichi Oyama, Tomoharu Semboku | 2023-03-21 |
| 11121778 | Phase variation compensation device, phase variation compensation method and communication device | Mitsuteru YOSHIDA, Tsutomu Takeya, Katsuichi Oyama, Hiroyuki Nouchi, Atsushi Suenaga | 2021-09-14 |
| 10608743 | Transmission characteristic compensation apparatus, transmission characteristic compensation method, and communication apparatus | Etsushi Yamazaki, Katsuichi Oyama, Yasuharu Onuma, Kazuhito Takei, Masanori Nakamura +3 more | 2020-03-31 |
| 10523335 | Known signal detection method | Yasuharu Onuma, Etsushi Yamazaki, Masahiro Tachibana, Mitsuteru YOSHIDA, Masahito Tomizawa +1 more | 2019-12-31 |
| 10422719 | Chromatic dispersion estimating circuit, optical reception device and chromatic dispersion amount estimating method | Etsushi Yamazaki, Yuki Yoshida, Mitsuteru YOSHIDA, Koki Shibahara, Kengo Horikoshi +1 more | 2019-09-24 |
| 10419127 | Phase compensation device, phase compensation method and communication apparatus | Etsushi Yamazaki, Hiroyukl Nouchi, Yasuharu Onuma, Katsuichi Oyama, Kazuhito Takei +4 more | 2019-09-17 |
| 10396895 | Compensation coefficient calculation method | Etsushi Yamazaki, Yuki Yoshida, Katsuichi Oyama, Yasuharu Onuma, 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 | Yasuharu Onuma, Etsushi Yamazaki, Hiroyuki Nouchi, Katsuichi Oyama, Kazuhito Takei +3 more | 2019-08-06 |