Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6006041 | Display device | Masao Mizumaki | 1999-12-21 |
| 5857120 | Eye axis detector and camera with eye axis detector | — | 1999-01-05 |
| 5790192 | Image-taking apparatus changing the size of an image receiving area based on a detected visual axis | Kazuyuki Maeda | 1998-08-04 |
| 5708862 | Gazing point detecting device and camera provided with the same | Tokuichi Tsunekawa, Akihiko Nagano | 1998-01-13 |
| 5657110 | Method of detecting eye component information for determining sight axis direction, and sight axis direction detection apparatus | — | 1997-08-12 |
| 5657109 | Method of detecting eye component information for determining sight axis direction and sight axis direction detection apparatus | — | 1997-08-12 |
| 5652641 | Method of detecting eye component information for determining sight axis direction, and sight axis direction detection apparatus | — | 1997-07-29 |
| 5598248 | Optical apparatus having visual point detection function | Akihiko Nagano, Yasuo Suda | 1997-01-28 |
| 5570157 | Visual axis detection apparatus | — | 1996-10-29 |
| 5546158 | View point detecting apparatus wherein first and subsequent view point data are compared | Akihiko Nagano | 1996-08-13 |
| 5508759 | Visual axis detection apparatus | Yasuo Suda, Akihiko Nagano | 1996-04-16 |
| 5486892 | Camera with visual axis detecting device | Kenji Suzuki, Akira Ishizaki, Keiji Ohtaka, Yasuo Suda, Hidehiko Fukahori +2 more | 1996-01-23 |
| 5469234 | Method of detecting eye component information for determining sight axis direction, and sight axis direction detection apparatus | — | 1995-11-21 |
| 5422700 | Camera in which focus is detected to a plurality of viewfields within a observation block which is selected by visual axis detecting means | Yasuo Suda, Akihiko Nagano | 1995-06-06 |
| 5313245 | Automatic focusing device | — | 1994-05-17 |
| 5298927 | Visual axis detecor having a high sensitivity to a light from an eye | Akihiko Nagano | 1994-03-29 |
| 5280312 | Visual axis detection apparatus | Akira Yamada, Akihiko Nagano | 1994-01-18 |
| 5253008 | Camera | Akihiko Nagano, Tokuichi Tsunekawa | 1993-10-12 |
| 5245371 | Camera provided with a visual axis direction detecting portion | Akihiko Nagano, Akira Yamada | 1993-09-14 |
| 5225862 | Visual axis detector using plural reflected image of a light source | Akihiko Nagano, Tokuichi Tsunekawa | 1993-07-06 |
| 5214466 | Camera having visual axis detecting apparatus | Akihiko Nagano, Akira Yamada, Yasuo Suda | 1993-05-25 |
| 5182443 | Optical apparatus having visual axis detector and determining whether eyeglasses are worn | Yasuo Suda, Akihiko Nagano | 1993-01-26 |
| 5138359 | Focus detecting apparatus in which matching with the image performance of an objective lens is achieved | Akihiko Nagano, Hiromi Someya, Tokuichi Tsunekawa | 1992-08-11 |
| 5128705 | Focus adjusting control device | Hiromi Someya, Akihiko Nagano, Tokuichi Tsunekawa | 1992-07-07 |
| 5036347 | Visual line detecting device and camera having the same | Tokuichi Tsunekawa, Akihiko Nagano | 1991-07-30 |