Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9444554 | Digital coherent receiving apparatus | Nobukazu Koizumi, Takeshi Hoshida, Takahito Tanimura, Hisao Nakashima, Koji Nakamuta | 2016-09-13 |
| 8693898 | Adaptive equalizer, optical receiver, and tap coefficient correcting method | Nobukazu Koizumi, Kazuhiko Hatae, Koji Nakamuta, Hisao Nakashima, Kosuke Komaki | 2014-04-08 |
| 8649689 | Digital coherent receiving apparatus | Nobukazu Koizumi, Takeshi Hoshida, Takahito Tanimura, Hisao Nakashima, Koji Nakamuta | 2014-02-11 |
| 8606118 | Optical digital coherent receiver | Kazuhiko Hatae, Nobukazu Koizumi, Yuji Obana | 2013-12-10 |
| 8428927 | Simulation method and simulation apparatus | Nobukazu Koizumi, Tomoki Kato, Naoki Yuzawa, Hiroyuki Hieda, Satoshi Hiramoto | 2013-04-23 |
| 8249850 | Method and an apparatus for executing simulation for system performance evaluation | Tomoki Kato, Hiroyuki Hieda | 2012-08-21 |
| 8225253 | Redundant logic circuit detection method and device and computer-readable recording medium | — | 2012-07-17 |
| 8214189 | Performance evaluation simulation | Tomoki Kato, Nobukazu Koizumi, Naoki Yuzawa, Hiroyuki Hieda, Satoshi Hiramoto | 2012-07-03 |