Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811262 | Projector comprising an optical component having a rock crystal member | Takeshi Takezawa, Toshiaki Hashizume | 2004-11-02 |
| 6805444 | Projector comprising an optical component having a rock crystal member | Takeshi Takezawa, Toshiaki Hashizume | 2004-10-19 |