Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6542204 | Display optical system | Mituaki Shimo | 2003-04-01 |
| 6480338 | Eyepiece optical system and image display apparatus | — | 2002-11-12 |
| 6450648 | Oblique projection optical system | Mituaki Shimo | 2002-09-17 |
| 6447122 | Projection image display device using a reflective type display element | Yasushi Kobayashi, Ichiro Kasai | 2002-09-10 |
| 6429971 | Focusing method for a decentered optical system | Mituaki Shimo | 2002-08-06 |
| 6366400 | Projection image display optical system | — | 2002-04-02 |
| 6343862 | Projecting image display device | Yasumasa Sawai, Kohtaro Hayashi, Yuichiro Ori, Jun Ishihara | 2002-02-05 |
| 6331879 | Liquid crystal projector with an illumination optical system | Yasumasa Sawai, Takashi Ohta, Nobuo Mushiake, Hideki Nagata | 2001-12-18 |
| 6297898 | Optical deflection device | Yasushi Tanijiri, Hiroaki Ueda, Kenji Ishibashi, Yasushi Kobayashi, Takatoshi Ishikawa +1 more | 2001-10-02 |
| 6220712 | Oblique projection optical system | — | 2001-04-24 |
| 6201647 | Image display apparatus | — | 2001-03-13 |
| 6123425 | Projecting optical system | — | 2000-09-26 |
| 6118501 | Projection display apparatus having predetermined conditions to correct distortions | — | 2000-09-12 |
| 6115186 | Scanning type image viewing optical system | Hideki Nagata, Kohtaro Hayashi, Ichiro Kasai, Akira Sato, Yasushi Kobayashi | 2000-09-05 |
| 6097526 | Scanning type image viewing optical system | Hideki Nagata, Kohtaro Hayashi, Ichiro Kasai, Akira Sato, Yasushi Kobayashi | 2000-08-01 |
| 5993010 | Two-dimensional illumination optical system and liquid crystal projector using same | Katsuhiro Takamoto | 1999-11-30 |
| 5911490 | Overhead projector | Takatoshi Ishikawa | 1999-06-15 |
| 5820240 | Projection optical device | — | 1998-10-13 |
| 5716118 | Imaging optical system | Akira Sato, Katsuhiro Takamoto | 1998-02-10 |
| 5683161 | Projecting optical device | Takatoshi Ishikawa, Katsuhiro Takamoto | 1997-11-04 |
| 5633759 | Zoom lens system | Hideki Nagata, Hiroyuki Matsumoto, Masakuni Tai | 1997-05-27 |
| 5528423 | Inner focusing zoom lens system | Tetsuya Arimoto | 1996-06-18 |
| 5398136 | Photographic lens system | Junji Hashimura | 1995-03-14 |