Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8002416 | Distance measuring device and projector including same distance measuring device | — | 2011-08-23 |
| 7944621 | Zoom lens system and a projector with the zoom lens system | — | 2011-05-17 |
| 7672065 | Lens system and projector utilizing the same | Etsuro Kawakami | 2010-03-02 |
| 7623304 | Lens system and projector using the same | Etsuro Kawakami | 2009-11-24 |
| 7619833 | Lens system and projector utilizing the same | Etsuro Kawakami | 2009-11-17 |
| 7619831 | Zoom lens and projector unit | Etsuro Kawakami | 2009-11-17 |
| 7548378 | Zoom lens and projector using zoom lens | Etsuro Kawakami | 2009-06-16 |
| 7548379 | Zoom lens and projector using zoom lens | Etsuro Kawakami | 2009-06-16 |
| 7545581 | Zoom lens and projector unit | Etsuro Kawakami | 2009-06-09 |
| 7529034 | Zoom lens and projector using zoom lens | Etsuro Kawakami | 2009-05-05 |
| 7495842 | Zoom lens and projector unit | Etsuro Kawakami | 2009-02-24 |
| 7495841 | Zoom lens and projector using zoom lens | Etsuro Kawakami | 2009-02-24 |
| 7486450 | Lens system and projector utilizing the same | Etsuro Kawakami | 2009-02-03 |
| 7423812 | Zoom lens and projector employing zoom lens | Etsuro Kawakami | 2008-09-09 |
| 7394599 | Zoom lens and projector with zoom lens | Etsuro Kawakami | 2008-07-01 |
| 6837580 | Progressive power lens | Yuko Senda | 2005-01-04 |
| 5651598 | Projector | Kazushi Yoshida, Ryota Ogawa, Satoru Tachihara | 1997-07-29 |
| 5645334 | Projector and focusing method therein | Nobutaka Minefuji, Masakuni Iwanaga | 1997-07-08 |
| 5600488 | Projection lens assembly and projector | Nobutaka Minefuji, Masakazu Yamagata | 1997-02-04 |
| 5442413 | Pupil conjugate-coupling device in projecting optical system | Yasunori Izawa, Nobutaka Minefuji, Ryota Ogawa | 1995-08-15 |
| 5353072 | Aspherical spectacle lens | Moriyasu Shirayanagi, Yasunori Izawa | 1994-10-04 |
| 5305029 | Projector | Kazushi Yoshida, Satoru Tachihara, Nobutaka Minefuji | 1994-04-19 |
| 5283599 | Apparatus for combining and projecting images | Takashi Iizuka, Yasunori Arai, Nobutaka Minefuji | 1994-02-01 |
| 5274406 | Image projecting device | Kazushi Yoshida, Moriyasu Shirayanagi | 1993-12-28 |
| 5272570 | Illuminating reflection apparatus | Kazushi Yoshida | 1993-12-21 |