Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6994442 | Display apparatus | Katsumi Kurematsu | 2006-02-07 |
| 6991338 | Projection optical system, projection type image display apparatus, and image display system | Katsumi Kurematsu, Takayuki Ishii, Yoshiaki Kurioka, Sawako Chatani | 2006-01-31 |
| 6984044 | Projection optical system, projection type image display apparatus, and image display system | Yoshiaki Kurioka, Katsumi Kurematsu, Takayuki Ishii, Sawako Chatani | 2006-01-10 |
| 6975385 | Projection optical system and exposure apparatus | Yumiko Ohsaki, Koshi Hatakeyama, Takahiro Sasaki | 2005-12-13 |
| 6951395 | Projection optical system, projection type image display apparatus, and image display system | Sawako Chatani, Katsumi Kurematsu, Takayuki Ishii, Yoshiaki Kurioka | 2005-10-04 |
| 6922291 | Catoptric projection optical system and exposure apparatus | Koshi Hatakeyama, Takahiro Sasaki | 2005-07-26 |
| 6894842 | Projection optical system, image display apparatus, and image display system | Katsumi Kurematsu | 2005-05-17 |
| 6890081 | Optical element and optical system having the same | Hiroaki Hoshi, Takeshi Akiyama | 2005-05-10 |
| 6883922 | Display apparatus | Katsumi Kurematsu | 2005-04-26 |
| 6848794 | Reflecting optical element, optical system and optical apparatus using reflecting optical element, projection type image display apparatus, and method for fabricating reflecting optical element | — | 2005-02-01 |
| 6842280 | Optical element and optical apparatus | Keisuke Araki, Tsunefumi Tanaka, Makoto Sekita, Kenichi Kimura, Takeshi Akiyama | 2005-01-11 |
| 6831693 | Image pickup unit having light incident side reflecting element and drive means for driving reflecting element, and apparatus having same | — | 2004-12-14 |
| 6804056 | Multi-eye image sensing apparatus | Kotaro Yano, Keisuke Araki | 2004-10-12 |
| 6758570 | Reflective optical element, reflective optical system, image display system, and finder optical system | Yumiko Kato | 2004-07-06 |
| 6637899 | Optical element and optical system having the same | Hiroaki Hoshi, Takeshi Akiyama | 2003-10-28 |
| 6626541 | Projection optical system and projection type displaying apparatus using the same | — | 2003-09-30 |
| 6590704 | Multi-eye image sensing apparatus | Kotaro Yano, Keisuke Araki | 2003-07-08 |
| 6409352 | Optical system, optical element, and optical device having the same | — | 2002-06-25 |
| 6282018 | Optical element and optical device having it | — | 2001-08-28 |
| 6270224 | Optical system and optical apparatus having the same | Takeshi Akiyama | 2001-08-07 |