Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643439 | Photonic crystal waveguide | Masaya Notomi, Koji Yamada, Akihiko Shinya, Junichi Takahashi, Itaru Yokohama | 2003-11-04 |
| 5648605 | Flowmeter calibration method | — | 1997-07-15 |