Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8684542 | Projection display having improved light shielding bodies for adjusting the amount of light applied to a light valve therein | Akihiro Yamada, Tomohiro Bessho, Akira Daijogo | 2014-04-01 |
| 8162488 | Projection display apparatus | Akihiro Yamada, Akira Daijogo, Kenji Samejima | 2012-04-24 |
| 8052285 | Projection display having improved light shielding bodies for adjusting the amount of light applied to a light valve therein | Akihiro Yamada, Tomohiro Bessho, Akira Daijogo | 2011-11-08 |
| 7993017 | Projection display apparatus | Akihiro Yamada, Akira Daijogo, Tomohiro Bessho, Kenji Samejima | 2011-08-09 |
| 7661829 | Projection display apparatus | Akihiro Yamada, Yoshinori Sato, Akira Daijogo, Hiroshi Kida | 2010-02-16 |
| 7163298 | Lens device and projector having diaphragm mechanisms with substantially trapezoidal apertures | Hiroki Abe, Tomoo Fujimori, Kenji Samejima | 2007-01-16 |
| 7114814 | Projector having an illuminance detector | Hiroki Abe, Tomoo Fujimori, Kenji Samejima | 2006-10-03 |
| 7114815 | Lens device and projector having diaphragm mechanisms with apertures having inwardly curved sides | Hiroki Abe, Tomoo Fujimori, Kenji Samejima | 2006-10-03 |
| 7111946 | Lens device and projector having diaphragm mechanisms with substantially triangular apertures | Hiroki Abe, Tomoo Fujimori, Kenji Samejima | 2006-09-26 |
| 7111947 | Lens device and projector having diaphragm mechanisms with substantially square apertures | Hiroki Abe, Tomoo Fujimori, Kenji Samejima | 2006-09-26 |
| 7104655 | Projector having an image signal controller | Hiroki Abe, Tomoo Fujimori, Kenji Samejima | 2006-09-12 |
| 7021772 | Projection lens device and projector | Hiroki Abe, Tomoo Fujimori, Kenji Samejima | 2006-04-04 |
| 6443575 | Projector with inlet fan, outlet fan and ventilation duct structure for cooling an optical system | Teruo Miyamoto, Hiroyuki Yahara, Mitsuhiro Kawaguchi, Tatsuro Hirose, Takaaki Uda | 2002-09-03 |
| 6227686 | Light source apparatus | Mitsuhiro Kawaguchi | 2001-05-08 |
| 4921330 | Back projection screen in a video projector | Kazuo Tsukagoshi | 1990-05-01 |