Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12197101 | Optical waveguide device and optical modulator | Akihito Kezuka | 2025-01-14 |
| 11387910 | Optical module, transmission device, and operating point control method | Shuichi Yasuda | 2022-07-12 |
| 11112625 | Optical modulator including electro-optic polymer in grooves having multiple widths | Masaki Sugiyama | 2021-09-07 |
| 9450677 | Optical transmitter and control apparatus of optical modulator | — | 2016-09-20 |
| 9450680 | Optical communication system, optical transmitter, and optical receiver | Yoshio Sakai | 2016-09-20 |
| 9344199 | Optical receiver and light receiving method | Kenichi Kawazoe, Yuji Ishii, Koji Terada | 2016-05-17 |
| 9130680 | Optical transmitter and modulated optical signal generating method | Yuichi Akiyama, Takeshi Hoshida, Yoshio Sakai | 2015-09-08 |
| 9063355 | Optical modulation device and control method in optical modulation device | — | 2015-06-23 |
| 8243372 | Optical apparatus and optical transmission apparatus | Hirofumi Aota, Kohei Shibata, Tsuyoshi Yamamoto | 2012-08-14 |
| 8165470 | Wavelength selecting switch | Hirofumi Aota, Tsuyoshi Yamamoto | 2012-04-24 |
| 7982957 | Optical apparatus using a lens array | Shinichi Takeuchi, Hirofumi Aota | 2011-07-19 |
| 7948670 | Optical attenuator | Tsuyoshi Yamamoto | 2011-05-24 |
| 7787721 | Mirror, mirror unit, and optical switch | Hirofumi Aota | 2010-08-31 |
| 7706049 | Mirror device and optical apparatus | Hirofumi Aota, Kohei Shibata, Tsuyoshi Yamamoto | 2010-04-27 |
| 7653273 | Optical switch | Shinji Yamashita, Tsuyoshi Yamamoto, Kohei Shibata, Hirofumi Aota, Osamu Tsuboi | 2010-01-26 |
| 7636503 | Wavelength selective switch | Tsuyoshi Yamamoto, Kohei Shibata, Hirofumi Aota, Shinji Yamashita | 2009-12-22 |
| 7613370 | Optical switch and method of adjusting optical switch | Kohei Shibata, Hirofumi Aota, Toshiya Kishida, Hiroyuki Furukawa | 2009-11-03 |
| 7580599 | Optical switch and MEMS package | Hirofumi Aota, Kohei Shibata, Tsuyoshi Yamamoto, Naoki Hashimoto | 2009-08-25 |
| 7466915 | Mirror controller for optical switch | Yuji Ishii, Kazuyuki Mori, Yoshio Sakai | 2008-12-16 |
| 7447399 | Optical switch, and apparatus and method for controlling optical switch | Hirofumi Aota | 2008-11-04 |
| 7424183 | Collimator array and method for manufacturing the same | Tsuyoshi Yamamoto, Shinji Yamashita, Kohei Shibata, Hirofumi Aota | 2008-09-09 |
| 7340128 | Wavelength selection device | Kohei Shibata, Nobuhiro Fukushima, Toshiya Kishida, Tsuyoshi Yamamoto, Hirofumi Aota +4 more | 2008-03-04 |
| 7330617 | Wavelength selective optical switch, and optical device provided with spectroscopic function | Hirofumi Aota, Kohei Shibata, Shinji Yamashita, Tsuyoshi Yamamoto, Shinichi Takeuchi +4 more | 2008-02-12 |
| 7302133 | Optical switch | — | 2007-11-27 |
| 7263254 | Optical switch and control method therefor | Shinji Yamashita, Tsuyoshi Yamamoto, Kohei Shibata, Hirofumi Aota | 2007-08-28 |