Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741776 | Optical waveguide module optically connected with an optical fiber | Tomohiro Watanabe, Toshihiko Ota | 2004-05-25 |
| 6320695 | Optical amplifying apparatus | Kanji Tanaka, Shoichi Ozawa | 2001-11-20 |
| 6257769 | Optical waveguide component | Tomohiro Watanabe, Toshihiko Ota, Kazunori Watanabe, Masaaki Takaya, Shinji Nagasawa | 2001-07-10 |