Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8810740 | Illumination optical system and image display apparatus | Iori Taketsu, Koji Kita, Tomoki Ono | 2014-08-19 |
| 7116498 | Projection optical system and image projection apparatus | Jun Nishikawa, Nobuhiko Nishiki, Yasunori Kuratomi, Takaaki Iwaki | 2006-10-03 |
| 5592241 | Attachable protective screen for image display device and installation method therefor | Makoto Koizumi | 1997-01-07 |
| 5402263 | Rear projector having an angled screen mounting frame | Yasuaki Nakanishi, Shintaro Takahata | 1995-03-28 |