Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11604369 | Bias control method of optical modulator and optical transmission module | — | 2023-03-14 |
| 10476602 | Optical circuit | — | 2019-11-12 |
| 10056977 | Method of measuring frequency response of optical coherent receiver | — | 2018-08-21 |
| 9780884 | Optical receiver and optical axis alignment method thereof | — | 2017-10-03 |
| 9780885 | Optical receiver and optical axis alignment method thereof | — | 2017-10-03 |
| 9684126 | Optical module having multi-mode coupler formed on semiconductor substrate | Yasushi Fujimura, Yutaka Moriyama, Takehiko Kikuchi | 2017-06-20 |
| 9419723 | Optical receiver and method for manufacturing the same | — | 2016-08-16 |
| 9163982 | Optical receiver device | Sousaku Sawada, Yoshihiro Tateiwa | 2015-10-20 |
| 8997141 | Cooperative communication/broadcasting system, application management server, receiver, reception method for receiver, and application management method for application management server | Shigeaki Mitsuya, Kinji Matsumura, Akitsugu Baba, Hiroshi Fujisawa, Yasuaki Kanatsugu +1 more | 2015-03-31 |
| 6490010 | AFC circuit, carrier recovery circuit and receiver device capable of regenerating a carrier reliably even at the time of low C/N ratio | Kazuhiko Shibuya, Junji Kumada, Yuichi Iwadate, Hiroyuki Hamazumi, Toshihiro Nomoto +8 more | 2002-12-03 |