Issued Patents All Time
Showing 26–50 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5109154 | Focus detection device having a plurality of means for forming light patterns provided at different distances from the optical axis | Masaki Higashihara, Kenji Suzuki, Takeshi Koyama, Yasuo Suda | 1992-04-28 |
| 5053803 | Information display apparatus for camera | Yasuo Suda, Kenji Ito, Kenji Suzuki | 1991-10-01 |
| 5005041 | Focus detecting apparatus having a plurality of focus detecting areas | Yasuo Suda, Kenji Suzuki, Akira Ishizaki, Keisuke Aoyama | 1991-04-02 |
| 4992817 | Focus detecting device switching between passive and active detection | Keisuke Aoyama, Kenji Suzuki, Akira Ishizaki, Yasuo Suda | 1991-02-12 |
| 4992819 | Focus detecting device having a plurality of detecting areas and camera provided with the same | Takeshi Koyama, Yasuo Suda | 1991-02-12 |
| 4975727 | Focus detecting device | Takeshi Koyama | 1990-12-04 |
| 4959677 | Device for detecting the focus adjusted state of an objecting lens | Yasuo Suda, Kazuhiko Arakawa, Takeshi Koyama, Ichiro Ohnuki | 1990-09-25 |
| 4954701 | Focus detecting apparatus provided with a plurality of detecting fields | Kenji Suzuki, Yasuo Suda | 1990-09-04 |
| 4922282 | Optical apparatus for leading light fluxes transmitted through light dividing surface which is obliquely provided to focus detecting apparatus | Takeshi Koyama | 1990-05-01 |
| 4914282 | Focus detection system employing multiple area light distribution sensors | Akira Akashi, Akira Ishizaki, Akira Hiramatsu, Yasuo Suda | 1990-04-03 |
| 4907026 | Light projection system for automatic focus detection | Takeshi Koyama | 1990-03-06 |
| 4878078 | Focus detecting device and method of making same | Takeshi Koyama, Yasuo Suda | 1989-10-31 |
| 4859842 | Multi-directional focus state detection apparatus | Yasuo Suda, Ichiro Ohnuki, Akira Akashi, Akira Ishizaki, Takeshi Koyama | 1989-08-22 |
| 4849782 | Focus detecting device | Takeshi Koyama | 1989-07-18 |
| 4841326 | Apparatus for detecting the focus adjusted state of an objective optical system | Takeshi Koyama | 1989-06-20 |
| 4833313 | Focus detecting apparatus having increased SNR by selectively varying or holding constant the number of signals from sensor arrays | Akira Akashi, Akira Ishizaki, Yasuo Suda, Ichiro Ohnuki, Takeshi Koyama | 1989-05-23 |
| 4825239 | Distance detection method and apparatus | Yasuo Suda, Akira Akashi, Akira Ishizaki, Hiroshi Ohmura | 1989-04-25 |
| 4812869 | Focus detecting apparatus | Akira Akashi, Akira Ishizaki, Yasuo Suda, Ichiro Ohnuki, Takeshi Koyama | 1989-03-14 |
| 4801963 | Focus detecting system | Takeshi Koyama | 1989-01-31 |
| 4800410 | Focus detecting apparatus for selecting the operating process in conformity with the contrast of an object | Akira Akashi, Akira Ishizaki, Yasuo Suda, Ichiro Ohnuki, Takeshi Koyama | 1989-01-24 |
| 4792669 | Focus detecting device having two selectively movable lenses | Ichiro Ohnuki, Yasuo Suda, Akira Ishizaki, Akira Akashi, Takeshi Koyama | 1988-12-20 |
| 4792668 | Apparatus for detecting focusing state of objective lens | Akira Akashi, Akira Ishizaki, Yasuo Suda, Ichiro Ohnuki, Takeshi Koyama | 1988-12-20 |
| 4777506 | Camera having an assembling adjusting device | Akira Hiramatsu, Akira Ishizaki, Akira Akashi, Yasuo Suda | 1988-10-11 |
| 4774539 | Camera having a focus detecting apparatus | Yasuo Suda, Kazuhiko Arakawa, Takeshi Koyama, Ichiro Ohnuki | 1988-09-27 |
| 4739157 | Method of detecting the correlation between signals with weighting | Akira Akashi, Akira Ishizaki, Yasuo Suda, Hiroshi Ohmura | 1988-04-19 |