Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643439 | Photonic crystal waveguide | Koji Yamada, Akihiko Shinya, Junichi Takahashi, Chiharu Takahashi, Itaru Yokohama | 2003-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643439 | Photonic crystal waveguide | Koji Yamada, Akihiko Shinya, Junichi Takahashi, Chiharu Takahashi, Itaru Yokohama | 2003-11-04 |