Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9908434 | Driving device | Yusuke Sakaguchi | 2018-03-06 |
| 9780897 | Optical transmission apparatus and optical reception apparatus | Kazuo Kubo | 2017-10-03 |
| 9692504 | Optical transport system | Hidenori Shimizu | 2017-06-27 |
| 9621291 | Optical communication cross-connection devices and signal processing method thereof | Soichiro Kametani, Kazuo Kubo, Kazuumi Koguchi | 2017-04-11 |
| 9590800 | Multilevel modulation optical transceiver and multilevel modulation optical transmission and reception method | Kiyoshi Onohara, Tsuyoshi Yoshida, Takafumi Fujimori | 2017-03-07 |
| 9564974 | Optical transmission device | Kazuo Kubo | 2017-02-07 |
| 8718487 | Optical transmitter | Takashi Sugihara, Soichiro Kametani, Takashi Mizuochi | 2014-05-06 |
| 8717205 | Parallel differential encoding circuits | — | 2014-05-06 |
| 8396374 | Digital signal processing optical transmission apparatus | Takashi Mizuochi, Tatsuya Kobayashi | 2013-03-12 |
| 7428692 | Parallel precoder circuit | Kazuo Kubo | 2008-09-23 |
| 7398450 | Parallel precoder circuit | Kazuo Kubo, Yasuyuki Endoh | 2008-07-08 |
| 5993174 | Pulsation free pump | — | 1999-11-30 |
| 5591016 | Multistage canned motor pump having a thrust balancing disk | Yasushi Kubota, Masaaki Eguchi | 1997-01-07 |
| 5198763 | Apparatus for monitoring the axial and radial wear on a bearing of a rotary shaft | — | 1993-03-30 |