Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7991290 | Optical prism and optical transceiver module for optical communications | Ken'ichi Tanaka, Masato Shishikura, Toshiki Sugawara, Yasunobu Matsuoka | 2011-08-02 |
| 7903975 | Optical add-drop multiplexer | Shinya Sasaki, Nobuhiko Kikuchi | 2011-03-08 |