Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8007116 | Video projection device having a converter lens attachably and detachably provided | Tokuji Matsuda | 2011-08-30 |
| 7862180 | Optical system for image projection and image projection apparatus | Kohtaro Hayashi | 2011-01-04 |
| 7012758 | Projection optical system and projecting apparatus provided with same | Tomokazu Masubuchi, Kohtaro Hayashi | 2006-03-14 |
| 6840631 | Illuminating apparatus, and projector using the illuminating apparatus | Tsutomu Yoshikawa | 2005-01-11 |
| 6685322 | Optical system and projection-type image display device | Katsuhiro Takamoto, Katsunari Fujiki | 2004-02-03 |
| 6583940 | Projection system | Jun Nishikawa, Katsuhiro Takamoto | 2003-06-24 |
| 6558007 | Illumination optical system and image projection apparatus | Tomoko Nakagawa, Katsuhiro Takamoto | 2003-05-06 |
| 6478431 | Illumination system and projector | Yasumasa Sawai, Hideki Nagata | 2002-11-12 |
| 6469820 | Scanning optical system | Nobuo Mushiake, Shunta Takimoto | 2002-10-22 |
| 6454417 | Projection optical system comprising an optical function surface for reflecting or transmitting light from a spatial light modulator | Katsuhiro Takamoto | 2002-09-24 |
| 6382799 | Projection optical apparatus | Jun Nishikawa, Katsuhiro Takamoto | 2002-05-07 |
| 6357878 | Optical system for a projector | — | 2002-03-19 |
| 6193376 | Display apparatus | Kohtaro Hayashi, Kenji Konno, Shunta Takimoto, Yasumasa Sawai | 2001-02-27 |
| 6179424 | Optical system for a projector | — | 2001-01-30 |
| 6128120 | Scanning optical system | Nobuo Mushiake, Shunta Takimoto | 2000-10-03 |