Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12300973 | Integrated photonic device and photonic integrated circuit using the same | Kazumasa Takabayashi | 2025-05-13 |
| 12242143 | Optical device and optical communication apparatus | Yoshihiko Yoshida, Nobuaki Mitamura, Yoshinobu Kubota | 2025-03-04 |
| 12197054 | Optical device and optical communication apparatus | Masaharu Doi, Yoshihiko Yoshida | 2025-01-14 |
| 12153294 | Optical device having dual waveguides with one being an electro-optic crystal waveguide | Teruo Kurahashi, Yoshinobu Kubota, Yoshihiko Yoshida, Nobuaki Mitamura, Takehito Tanaka | 2024-11-26 |
| 12044910 | Optical device and optical communication apparatus | Yoshinobu Kubota, Yasuhiro Ohmori, Masaharu Doi, Masaki Sugiyama, Shintaro Takeuchi +3 more | 2024-07-23 |
| 12047121 | Optical device, optical transmission apparatus, optical reception apparatus, and optical communication apparatus | Koji Otsubo, Kazumasa Takabayashi, Masaki Sugiyama | 2024-07-23 |
| 12032268 | Optical modulator | Shinji Maruyama, Yoshimitsu Sakai, Yoshinobu Kubota | 2024-07-09 |
| 11936428 | Optical device and optical communication apparatus | Teruo Kurahashi | 2024-03-19 |
| 11693291 | Optical waveguide device and method of manufacturing optical waveguide device | Yoshinobu Kubota, Yasuhiro Ohmori, Masaharu Doi, Shintaro Takeuchi | 2023-07-04 |
| 11693290 | Optical waveguide device | Yoshinobu Kubota, Yasuhiro Ohmori, Masaharu Doi, Teruo Kurahashi, Shintaro Takeuchi | 2023-07-04 |
| 11624965 | Optical waveguide device | Yoshinobu Kubota, Yasuhiro Ohmori, Masaharu Doi, Teruo Kurahashi | 2023-04-11 |
| 10630389 | Optical transceiver device and optical transceiver module that includes optical transceiver device | Kohei Shibata, Suguru Akiyama | 2020-04-21 |
| 10560213 | Optical device | Kazumasa Takabayashi | 2020-02-11 |