Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11495589 | Optical module and manufacturing method of optical module | Kento TAKAHASHI, Hiroshi Kobayashi | 2022-11-08 |
| 11415764 | Optical module | Yuka Ojima, Tetsuo Ishizaka, Tomoyuki Ito | 2022-08-16 |
| 10054744 | Optical module and optical fiber assembly | Masaharu Doi, Akira Ishii, Yoshinobu Kubota | 2018-08-21 |
| 9864147 | Optical modulator module | Hiroshi Kato, Shinji Maruyama, Kohei Shibata, Seimi Sasaki, Takehito Tanaka | 2018-01-09 |
| 9638861 | Optical transmitter | Shinji Maruyama, Seimi Sasaki, Kohei Shibata, Shintaro Takeuchi, Hiroshi Kato +1 more | 2017-05-02 |
| 9638927 | Polarization combiner and optical modulation device | Seimi Sasaki, Kohei Shibata, Shinji Maruyama, Shintaro Takeuchi, Hiroshi Kato +1 more | 2017-05-02 |
| 9520948 | Optical transmission device | Masaharu Doi, Yoshinobu Kubota, Yoshitada Kawashima | 2016-12-13 |
| 9448424 | Optical module and optical modulation device | Kohei Shibata, Seimi Sasaki, Shinji Maruyama, Shintaro Takeuchi, Hiroshi Kato +1 more | 2016-09-20 |
| 9405081 | Optical transmitting apparatus | Shinji Maruyama, Seimi Sasaki, Kohei Shibata, Shintaro Takeuchi, Hiroshi Kato +1 more | 2016-08-02 |
| 7443503 | Polarization measuring apparatus | Yoichi Oikawa | 2008-10-28 |
| 7079248 | Polarization state measuring apparatus | — | 2006-07-18 |
| 6671430 | Optical device, terminal apparatus, and system for wavelength division multiplexing | — | 2003-12-30 |
| 6115178 | Optical device | Norihisa Naganuma | 2000-09-05 |
| 5905827 | Optical multiplexer/demultiplexer and wavelength division multiplexing module | Norihisa Naganuma, Nobuhiro Fukushima | 1999-05-18 |