Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11982839 | Optical 90 degree hybrid circuit | Manabu Oguma, Yusuke Nasu, Yuichiro Ikuma | 2024-05-14 |
| 11493776 | Polarization multiplexed optical transmitter circuit and polarization multi/demultiplexed optical transceiver circuit | Yusuke Nasu, Manabu Oguma, Shogo Yamanaka | 2022-11-08 |
| 10720543 | Photodetector | Hiroshi Fukuda, Shin Kamei, Ken Tsuzuki, Kiyofumi Kikuchi | 2020-07-21 |
| 10295744 | Coherent optical mixer circuit | Shin Kamei, Hiroshi Fukuda, Kiyofumi Kikuchi, Ken Tsuzuki | 2019-05-21 |
| 10193653 | Polarization multiplexing optical transmission circuit and polarization multiplexing optical transmission and reception circuit | Shin Kamei, Hiroshi Fukuda, Kiyofumi Kikuchi, Ken Tsuzuki | 2019-01-29 |
| 10190941 | Silicon optical circuit for flaw detection in an optical circuit element | Shin Kamei, Kotaro Takeda, Hiroshi Fukuda | 2019-01-29 |
| 10146099 | Optical modulator | Ken Tsuzuki, Shin Kamei | 2018-12-04 |
| 9817186 | Polarization rotator | Shin Kamei, Hiroshi Fukuda, Kiyofumi Kikuchi | 2017-11-14 |