Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7535637 | Fresnel lens sheet, transmission type screen and rear projection type display apparatus | Yasufumi Ogawa, Takaaki Iwaki | 2009-05-19 |
| 7525728 | Transmissive screen and rear projection display apparatus | Yasufumi Ogawa, Takaaki Iwaki, Minoru Makida | 2009-04-28 |
| 7499213 | Rear projection display apparatus and transmission type screen | Takaaki Iwaki, Yasufumi Ogawa | 2009-03-03 |