Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6967776 | Polarizing filter and optical device using the same | Isao Muraguchi, Yukinari Sekiguchi | 2005-11-22 |
| 6839173 | Reflection type diffraction grating | Katsuhide Shimmo, Shinji Kawamoto, Kenichi Nakama | 2005-01-04 |