Issued Patents 2003
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665029 | Optical path changing film and reflective liquid-crystal display device including same | Hiroyuki Kondo, Seiji Umemoto | 2003-12-16 |
| 6642976 | Glass substrate and liquid-crystal display device | Seiji Umemoto | 2003-11-04 |
| 6636358 | Optical film | Seiji Umemoto | 2003-10-21 |
| 6633351 | Optical functionality sheet, and planar light source and image display apparatus using the same sheet | Yasuo Hira | 2003-10-14 |
| 6616289 | Light pipe, plane light source unit and liquid-crystal display device | Seiji Umemoto | 2003-09-09 |
| 6603520 | Optical film and liquid-crystal display device | Seiji Umemoto | 2003-08-05 |
| 6565224 | Light pipe, surface light source unit and reflection type liquid-crystal display device | Seiji Umemoto | 2003-05-20 |