Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5903399 | UV-curable Fresnel lens resin composition, Fresnel lens, and back projection screen | Tsutomu Yamashita, Makoto Honda, Futoshi Osawa | 1999-05-11 |
| 5805358 | UV-curable fresnel lens resin composition, fresnel lens, and back projection screen | Tsutomu Yamashita, Makoto Honda, Futoshi Osawa | 1998-09-08 |