Issued Patents All Time
Showing 101–125 of 147 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7255444 | Optical unit and projection-type image display apparatus using the same | Tsutomu Nakashima, Koji Hirata | 2007-08-14 |
| 7241015 | Optical unit and projection type image display unit using it | Koji Hirata, Tsutomu Nakashima, Nobuo Masuoka | 2007-07-10 |
| 7237901 | Projection type image display device, rear projection type image display device, optical unit, and screen unit | Koji Hirata, Tsutomu Nakashima | 2007-07-03 |
| 7232227 | Image display device | Futoshi Yamasaki, Nobuo Masuoka | 2007-06-19 |
| 7222965 | Optical unit and a projection image display apparatus using the same | Tsutomu Nakashima | 2007-05-29 |
| 7220005 | Projection type video display apparatus | Futoshi Yamasaki | 2007-05-22 |
| 7210797 | Projector optical unit, projection type image display apparatus, and rear projection type image display apparatus | Koji Hirata, Shuji Kato, Tsutomu Nakashima, Hidehiro Ikeda | 2007-05-01 |
| 7198390 | Reflector, projective display and projector | Motoyuki Miyata, Hiroyuki Akata, Masaharu Deguchi, Katsuyuki Watanabe, Takashi Naitou +1 more | 2007-04-03 |
| 7170567 | Projection type image display apparatus | Satoshi Ouchi, Tomohiro Miyoshi, Taro Imahase, Koji Hirata | 2007-01-30 |
| 7159988 | Projection optical unit and projection image display apparatus | Koji Hirata, Hidehiro Ikeda | 2007-01-09 |
| 7152978 | Liquid crystal projector, and projection lens unit, optical unit and cooling system for the same | Nobuhiko Konuma, Hidetomo Yoshimura, Seiichi Sekiguchi, Mikiharu Kuwata, Masaharu Deguchi +16 more | 2006-12-26 |
| 7142367 | Projection lens apparatus and projection type image display apparatus | Hidehiro Ikeda, Koji Hirata, Junichi Ikoma | 2006-11-28 |
| 7111942 | Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use therein | Koji Hirata, Naoyuki Ogura, Nobuo Masuoka | 2006-09-26 |
| 7106518 | Optical unit and image display apparatus | Satoshi Ohuchi, Taro Imahase, Tomohiro Miyoshi, Yasuo Otsuka, Takesuke Maruyama | 2006-09-12 |
| 7081927 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Koji Hirata, Naoyuki Ogura, Hidehiro Ikeda | 2006-07-25 |
| 7059725 | Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use therein | Koji Hirata, Naoyuki Ogura, Nobuo Masuoka | 2006-06-13 |
| 7014319 | Projection type color display device | Koji Hirata | 2006-03-21 |
| 6987546 | Projection type image display apparatus | Satoshi Ouchi, Koji Hirata, Futoshi Yamasaki, Tomohiro Miyoshi | 2006-01-17 |
| 6975460 | Projection lens apparatus and projection type image display apparatus | Hidehiro Ikeda, Koji Hirata, Junichi Ikoma | 2005-12-13 |
| 6963453 | Optical unit and image display apparatus | Satoshi Ohuchi, Taro Imahase, Tomohiro Miyoshi, Yasuo Otsuka, Takesuke Maruyama | 2005-11-08 |
| 6956624 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Koji Hirata, Naoyuki Ogura, Hidehiro Ikeda | 2005-10-18 |
| 6945651 | Optical unit and projection type projector apparatus using the same | Koji Hirata, Futoshi Yamasaki | 2005-09-20 |
| 6905213 | Projection apparatus and projection-type image display apparatus | Koji Hirata, Futoshi Yamasaki | 2005-06-14 |
| 6894729 | Optical projection apparatus, transmission type screen, and projection type image display apparatus | Koji Hirata, Naoyuki Ogura, Hidehiro Ikeda | 2005-05-17 |
| 6869184 | Polarized-light converting unit and projector using the same | Koji Hirata, Naoyuki Ogura | 2005-03-22 |