Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12153294 | Optical device having dual waveguides with one being an electro-optic crystal waveguide | Shuntaro Makino, Teruo Kurahashi, Yoshinobu Kubota, Yoshihiko Yoshida, Nobuaki Mitamura | 2024-11-26 |
| 11003043 | Optical modulator | Yasuhiro Ohmori, Masaharu Doi, Shintaro Takeuchi, Yoshinobu Kubota, Shinji Iwatsuka +4 more | 2021-05-11 |
| 10989980 | Optical modulator | Shinji Iwatsuka, Kenji Endou, Hiroki Hara, Toshinori MATSUURA, Takashi Kikukawa +4 more | 2021-04-27 |
| 10578885 | Polarization coupling device and optical modulation device | Seimi Sasaki, Hiroshi Kato, Kohei Shibata | 2020-03-03 |
| 10031395 | Optical modulator | Yusuke Saito | 2018-07-24 |
| 9954638 | Optical module and optical transmitter using the same | Masaki Sugiyama | 2018-04-24 |
| 9864147 | Optical modulator module | Hiroshi Kato, Shinji Maruyama, Kohei Shibata, Seimi Sasaki, Teruhiro Kubo | 2018-01-09 |
| 9638861 | Optical transmitter | Shinji Maruyama, Seimi Sasaki, Kohei Shibata, Teruhiro Kubo, Shintaro Takeuchi +1 more | 2017-05-02 |
| 9638927 | Polarization combiner and optical modulation device | Seimi Sasaki, Kohei Shibata, Teruhiro Kubo, Shinji Maruyama, Shintaro Takeuchi +1 more | 2017-05-02 |
| 9461753 | Optical receiver circuit | Shintaro Takeuchi | 2016-10-04 |
| 9448424 | Optical module and optical modulation device | Kohei Shibata, Seimi Sasaki, Teruhiro Kubo, Shinji Maruyama, Shintaro Takeuchi +1 more | 2016-09-20 |
| 9405081 | Optical transmitting apparatus | Shinji Maruyama, Seimi Sasaki, Kohei Shibata, Teruhiro Kubo, Shintaro Takeuchi +1 more | 2016-08-02 |
| 9229292 | Optical module and optical transmitter | Masaki Sugiyama, Seimi Sasaki | 2016-01-05 |
| 9231728 | Optical module and optical transmitter | Masaki Sugiyama, Seimi Sasaki | 2016-01-05 |
| 8120925 | Circuit device | — | 2012-02-21 |
| 7689078 | Optical device | Akira Ishii, Masaharu Doi, Tetsu Hasegawa | 2010-03-30 |
| 7551820 | Optical device | Akira Ishii, Masaharu Doi, Tetsu Hasegawa | 2009-06-23 |
| 7526161 | Optical device | Akira Ishii, Masaharu Doi, Tetsu Hasegawa | 2009-04-28 |
| 7263244 | Optical modulator | Masaharu Doi | 2007-08-28 |
| 7006715 | Optical modulator of clock modulation type | Masaharu Doi, Tetsuo Ishizaka | 2006-02-28 |
| 6999223 | Optical modulator | Minoru Seino, Tetsuo Ishizaka, Masaharu Doi, Tadao Nakazawa | 2006-02-14 |
| 6961494 | Optical waveguide device | — | 2005-11-01 |
| 6950218 | Optical modulator | Masaki Sugiyama, Tadao Nakazawa, Masaharu Doi, Akira Ishii | 2005-09-27 |
| 6741379 | Optical module having element for optical phase shift using electro-optic effect | Yoshihiko Kaitoh, Tetsuo Ishizaka | 2004-05-25 |
| 6678428 | Optical modulator | Minoru Seino, Tetsuo Ishizaka, Masaharu Doi, Tadao Nakazawa | 2004-01-13 |