Issued Patents All Time
Showing 25 most recent of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10530491 | Coherent optical receiver, device and method for detecting inter-lane skew in coherent optical receiver | Junichi Abe, Wakako Yasuda | 2020-01-07 |
| 9686019 | Coherent optical receiver, device and method for detecting inter-lane skew in coherent optical receiver | Junichi Abe, Wakako Yasuda | 2017-06-20 |
| 9319141 | Optical transmitting/receiving system and timing extracting method in optical transmitting/receiving system | Manabu Arikawa, Emmanuel Le Taillandier De Gabory | 2016-04-19 |
| 9246599 | Coherent optical receiver, apparatus and method for detecting interchannel skew in coherent optical receiver | Wakako Yasuda, Junichi Abe | 2016-01-26 |
| 9184905 | Phase compensation receiver | Masahiro Shigihara | 2015-11-10 |
| 9166697 | Optical transmitter and method for controlling the same | Emmanuel Le Taillandier De Gabory, Sadao Fujita | 2015-10-20 |
| 9160459 | Equalization signal processor, optical receiver including the same, and method for equalization signal processing | Manabu Arikawa, Daisaku Ogasahara, Emmanuel Le Taillandier De Gabory | 2015-10-13 |
| 9088370 | Coherent optical receiver, apparatus and method for detecting inter-channel skew in coherent optical receiver | Junichi Abe, Wakako Yasuda | 2015-07-21 |
| 9014574 | Optical receiver, polarization demultiplexer, and optical receiving method | Manabu Arikawa, Daisaku Ogasahara, Emmanuel Le Taillandier De Gabory | 2015-04-21 |
| 8989599 | Optical communication system with monitor functions and monitoring method therefor | Emmanuel Le Taillandier De Gabory, Manabu Arikawa | 2015-03-24 |
| 8971723 | Method of and system for detecting skew between parallel signals | Emmanuel Le Taillandier De Gabory | 2015-03-03 |
| 8971702 | Method and apparatus for detecting chromatic dispersion, and method and apparatus for compensating chromatic dispersion | Emmanuel Le Taillandier De Gabory, Manabu Arikawa | 2015-03-03 |
| 8953953 | Coherent optical receiver, apparatus and method for detecting inter-channel skew in coherent optical receiver | Junichi Abe, Wakako Yasuda | 2015-02-10 |
| 8909060 | Optical communication system and optical communication method | — | 2014-12-09 |
| 8693880 | Wavelength path communication node apparatus, wavelength path communication control method, and recording medium | Masahiro Sakauchi, Shigeru Nakamura, Yutaka Urino, Itaru Nishioka | 2014-04-08 |
| 8639114 | DPSK modulation-demodulation method, and optical communication device and optical communication system using the same | Satomi Shioiri, Toshiharu Itou, Hitoshi Takeshita | 2014-01-28 |
| 8634727 | Coherent optical receiver, apparatus and method for detecting interchannel skew in coherent optical receiver | Wakako Yasuda, Junichi Abe | 2014-01-21 |
| 8626000 | Coherent optical receiver, apparatus and method for detecting inter-channel skew in coherent optical receiver | Junichi Abe, Wakako Yasuda | 2014-01-07 |
| 8515293 | Coherent receiver | Wakako Yasuda, Daisaku Ogasahara | 2013-08-20 |
| 8472812 | Optical communication system, optical communication method and optical communication apparatus | Satomi Shioiri, Toshiharu Ito | 2013-06-25 |
| 8346099 | Optical reception device and optical reception method | Satomi Shioiri | 2013-01-01 |
| 8320779 | Light receiver, optical communication system and method | Toshiharu Ito | 2012-11-27 |
| 8204387 | Optical modulator and optical communication system | — | 2012-06-19 |
| 8165477 | Light receiving apparatus using DQPSK demodulation method, and DQPSK demodulation method | Satomi Shioiri, Toshiharu Ito, Hitoshi Takeshita | 2012-04-24 |
| 8085634 | Optical disk drive, and method for determining recording strategy | — | 2011-12-27 |