Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8774575 | Optical waveguide and optical waveguide manufacturing member | Makoto Fujiwara, Yoji Shirato, Koji Choki, Mutsuhiro Matsuyama | 2014-07-08 |
| 8208769 | Substrate for mounting an optical element, optical circuit substrate, and substrate on which an optical element is mounted | Koji Choki, Mutsuhiro Matsuyama, Keizo Takahama, Tetsuya Mori, Kei Watanabe +2 more | 2012-06-26 |
| 7869670 | Substrate for mounting an optical element, optical circuit substrate, and substrate on which an optical element is mounted | Koji Choki, Mutsuhiro Matsuyama, Keizo Takahama, Tetsuya Mori, Kei Watanabe +2 more | 2011-01-11 |