Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7163298 | Lens device and projector having diaphragm mechanisms with substantially trapezoidal apertures | Hiroki Abe, Motoo Takahashi, Kenji Samejima | 2007-01-16 |
| 7114815 | Lens device and projector having diaphragm mechanisms with apertures having inwardly curved sides | Hiroki Abe, Motoo Takahashi, Kenji Samejima | 2006-10-03 |
| 7114814 | Projector having an illuminance detector | Hiroki Abe, Motoo Takahashi, Kenji Samejima | 2006-10-03 |
| 7111947 | Lens device and projector having diaphragm mechanisms with substantially square apertures | Hiroki Abe, Motoo Takahashi, Kenji Samejima | 2006-09-26 |
| 7111946 | Lens device and projector having diaphragm mechanisms with substantially triangular apertures | Hiroki Abe, Motoo Takahashi, Kenji Samejima | 2006-09-26 |
| 7104655 | Projector having an image signal controller | Hiroki Abe, Motoo Takahashi, Kenji Samejima | 2006-09-12 |
| 7021772 | Projection lens device and projector | Hiroki Abe, Motoo Takahashi, Kenji Samejima | 2006-04-04 |
| 4816859 | Zoom lens focusing apparatus | Takashi Maruyama, Osamu Watanabe, Hidehiko Kitahara, Akihiko Soya, Katsuhiko Ootsuki | 1989-03-28 |