Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836363 | Rear projection screen and rear projection type display including the same | Masahiro Goto | 2004-12-28 |
| 6726859 | Fresnel lens, screen, image display device, lens mold manufacturing method and lens manufacturing method | Hiroshi Suzuki, Kohei Teramoto, Yoshihiro Ashizaki, Shinsuke Sikama, Tadahiko Ryuugou +1 more | 2004-04-27 |
| 6707605 | Fresnel lens sheet and transmission-type projection screen | — | 2004-03-16 |
| 6697409 | Beam distributor of laser apparatus capable of efficiently introducing pumping beam into laser medium | — | 2004-02-24 |
| 6683892 | Laser device, method of producing the same and composite optical medium for use in producing the same | Hitoshi Yamaura | 2004-01-27 |