Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6904207 | Waveguide type liquid-crystal optical switch | Kenichi Nakama | 2005-06-07 |
| 6839173 | Reflection type diffraction grating | Katsuhide Shimmo, Terufusa Kunisada, Kenichi Nakama | 2005-01-04 |