Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9291838 | Optical waveguide element | Motohiro Takemura, Tetsuya Fujino | 2016-03-22 |
| 9223158 | Optical waveguide element and method of manufacturing the same | Tetsuya Fujino, Takashi Shinriki, Toru Sugamata | 2015-12-29 |
| 8306372 | Waveguide-type polarizer | Katsutoshi Kondou, Toru Sugamata | 2012-11-06 |
| 7292739 | Optical modulator | Takashi Shinriki, Toshihiro Sakamoto, Toru Sugamata, Norikazu Miyazaki | 2007-11-06 |