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, Terufusa Kunisada | 2005-11-22 |
| 6940650 | Diffraction optical element and transfer mold therefor | Katsuhide Shimmo, Kenichi Nakama, Naoko Hikichi | 2005-09-06 |