Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7397610 | Zoom lens and image projection apparatus having the same | — | 2008-07-08 |
| 7315425 | Zoom lens and image projection apparatus having the same | — | 2008-01-01 |
| 7016118 | Zoom lens and image projection apparatus having the same | — | 2006-03-21 |
| 7009776 | Projection optical system and projection apparatus using the same | — | 2006-03-07 |
| 6816320 | Zoom lens system and projector having the same | — | 2004-11-09 |
| 6671102 | Projection optical system, projection type image display apparatus, and image projection system | — | 2003-12-30 |
| 6636361 | Zoom lens and image display apparatus using the same | — | 2003-10-21 |
| 6633436 | Optical system, projection optical system, image projection apparatus having it, and image pickup apparatus | Saburo Sugawara | 2003-10-14 |
| 6478430 | Illumination apparatus and projection apparatus | — | 2002-11-12 |
| 6454438 | Illuminating apparatus and projector | — | 2002-09-24 |
| 6388709 | Image sensing apparatus with optical modulation elements having transmission characteristics controllable by pixel | Shuichi Kobayashi | 2002-05-14 |
| 6351332 | Optical low-pass filter and optical apparatus having the same | Atsushi Okuyama, Shuichi Kobayashi | 2002-02-26 |
| 6144493 | Optical low-pass filter and optical apparatus having the same | Atsushi Okuyama, Shuichi Kobayashi | 2000-11-07 |
| 6084719 | Projection lens | Saburo Sugawara | 2000-07-04 |
| 6031587 | Optical member, optical instrument including the same, and method of manufacturing the optical member | Atsushi Okuyama | 2000-02-29 |