Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6650471 | Resin composition for production of optical element, the optical element, and projection screen | — | 2003-11-18 |
| 6639736 | Base plate, lens sheet, and projection screen | Hitomu Watanabe, Makoto Kimura, Ryuji Hashimoto | 2003-10-28 |