Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12170607 | Transmission apparatus, transmission system and delay adjustment method | Kei Kitamura, Fumikazu INUZUKA, Akira Hirano, Takuya Ohara | 2024-12-17 |
| 12119867 | Transmission apparatus and transmission method | Kei Kitamura, Fumikazu INUZUKA, Kengo SHINTAKU, Takuya Oda, Takafumi Tanaka | 2024-10-15 |
| 11923862 | Transmission apparatus and transmission system | Fumikazu INUZUKA, Kei Kitamura, Akira Hirano, Takuya Ohara | 2024-03-05 |
| 11916685 | Transmission apparatus and transmission method | Kei Kitamura, Fumikazu INUZUKA, Akira Hirano, Takuya Ohara | 2024-02-27 |
| 11683093 | Wavelength dispersion compensation apparatus, optical receiving apparatus, wavelength dispersion compensation method and computer program | Masanori Nakamura, Seiji Okamoto, Kengo Horikoshi, Shuto Yamamoto, Takayuki Kobayashi +1 more | 2023-06-20 |
| 11671119 | Signal processing apparatus and signal processing method | Seiji Okamoto, Etsushi Yamazaki, Masanori Nakamura, Yoshiaki Kisaka | 2023-06-06 |
| 11329764 | Error correction device, error correction method, and optical communication system | Fumiaki Nakagawa, Yasuharu Onuma, Katsuichi Oyama, Yasuyuki Endoh, Etsushi Yamazaki +1 more | 2022-05-10 |
| 11323238 | Frame synchronization apparatus, optical communication apparatus, and frame synchronization method | Mitsuteru YOSHIDA, Yasuyuki Endoh, Katsuichi Oyama, Masayuki Ikeda, Tsutomu Takeya +2 more | 2022-05-03 |
| 11201721 | Frame synchronization apparatus, optical communication apparatus, and frame synchronization method | Mitsuteru YOSHIDA, Yasuyuki Endoh, Katsuichi Oyama, Masayuki Ikeda, Tsutomu Takeya +2 more | 2021-12-14 |
| 10880193 | Error correction device, error correction method, and communication device | Mitsuteru YOSHIDA, Yasuyuki Endo, Etsushi Yamazaki, Katsuichi Oyama, Yasuharu Onuma | 2020-12-29 |
| 10868617 | Chromatic dispersion compensation device, chromatic dispersion compensation method, and communication device | Mitsuteru YOSHIDA, Etsushi Yamazaki, Yoshiaki Kisaka | 2020-12-15 |
| 10608743 | Transmission characteristic compensation apparatus, transmission characteristic compensation method, and communication apparatus | Tomohiro Takamuku, Etsushi Yamazaki, Katsuichi Oyama, Yasuharu Onuma, Kazuhito Takei +3 more | 2020-03-31 |
| 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 |
| 10128818 | Data processor, data processing method and communication device | Yasuharu Onuma, Etsushi Yamazaki, Kazuhito Takei, Osamu Ishida, Kengo Horikoshi +2 more | 2018-11-13 |
| 10122462 | Transport apparatus and transport method | Takuya Ohara, Kei Kitamura, Yoshiaki Kisaka, Shigeki Aisawa, Masahiro Suzuki +5 more | 2018-11-06 |
| 10122465 | Digital signal processing device and optical transceiver apparatus | Osamu Ishida, Etsushi Yamazaki, Kazuhito Takei, Hideki Nishizawa | 2018-11-06 |
| 10038507 | Optical transmission system, phase compensation method, and optical reception apparatus | Mitsuteru YOSHIDA, Etsushi Yamazaki, Seiji Okamoto, Hiroyuki Uzawa, Kengo Horikoshi +6 more | 2018-07-31 |
| 9698932 | Optical transmission/reception system, transmitter, receiver, and optical transmission/reception method | Yoshiaki Kisaka, Koichi Ishihara, Etsushi Yamazaki | 2017-07-04 |
| 9667350 | Optical receiving device and phase cycle reduction method | Kengo Horikoshi, Kohki Shibahara, Etsushi Yamazaki, Mitsuteru YOSHIDA, Koichi Ishihara +4 more | 2017-05-30 |
| 9621299 | Coherent communication system, communication method, and transmission method | Koichi Ishihara, Masato Mizoguchi, Tomoki Murakami, Tomoyoshi Kataoka, Yoshiaki Kisaka +5 more | 2017-04-11 |
| 9438365 | Client signal mapping circuit and mapping method | Masahiro Suzuki, Takuya Ohara, Takashi Ono, Shigeki Aisawa | 2016-09-06 |