Issued Patents All Time
Showing 76–100 of 111 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5005041 | Focus detecting apparatus having a plurality of focus detecting areas | Keiji Ohtaka, 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, Keiji Ohtaka | 1991-02-12 |
| 4992819 | Focus detecting device having a plurality of detecting areas and camera provided with the same | Keiji Ohtaka, Takeshi Koyama | 1991-02-12 |
| 4963912 | Camera apparatus having means for setting the position of an optical grating at a desired location in the viewfinder | Masaki Higashihara | 1990-10-16 |
| 4959677 | Device for detecting the focus adjusted state of an objecting lens | Kazuhiko Arakawa, Keiji Ohtaka, Takeshi Koyama, Ichiro Ohnuki | 1990-09-25 |
| 4954701 | Focus detecting apparatus provided with a plurality of detecting fields | Kenji Suzuki, Keiji Ohtaka | 1990-09-04 |
| 4914282 | Focus detection system employing multiple area light distribution sensors | Akira Akashi, Akira Ishizaki, Akira Hiramatsu, Keiji Ohtaka | 1990-04-03 |
| 4908645 | Automatic focus adjusting device | Masaki Higashihara, Ichiro Ohnuki, Akira Akashi, Terutake Kadohara | 1990-03-13 |
| 4878078 | Focus detecting device and method of making same | Takeshi Koyama, Keiji Ohtaka | 1989-10-31 |
| 4859842 | Multi-directional focus state detection apparatus | Ichiro Ohnuki, Akira Akashi, Akira Ishizaki, Keiji Ohtaka, Takeshi Koyama | 1989-08-22 |
| 4855777 | Apparatus for detecting the focus adjusted state of an objective lens | Masaki Higashihara, Terutake Kadohara | 1989-08-08 |
| 4833313 | Focus detecting apparatus having increased SNR by selectively varying or holding constant the number of signals from sensor arrays | Akira Akashi, Akira Ishizaki, Ichiro Ohnuki, Keiji Ohtaka, Takeshi Koyama | 1989-05-23 |
| 4825239 | Distance detection method and apparatus | Akira Akashi, Akira Ishizaki, Hiroshi Ohmura, Keiji Ohtaka | 1989-04-25 |
| 4812869 | Focus detecting apparatus | Akira Akashi, Akira Ishizaki, Ichiro Ohnuki, Keiji Ohtaka, Takeshi Koyama | 1989-03-14 |
| 4800410 | Focus detecting apparatus for selecting the operating process in conformity with the contrast of an object | Akira Akashi, Akira Ishizaki, Ichiro Ohnuki, Keiji Ohtaka, Takeshi Koyama | 1989-01-24 |
| 4792668 | Apparatus for detecting focusing state of objective lens | Akira Akashi, Akira Ishizaki, Ichiro Ohnuki, Keiji Ohtaka, Takeshi Koyama | 1988-12-20 |
| 4792669 | Focus detecting device having two selectively movable lenses | Ichiro Ohnuki, Akira Ishizaki, Akira Akashi, Keiji Ohtaka, Takeshi Koyama | 1988-12-20 |
| 4777506 | Camera having an assembling adjusting device | Akira Hiramatsu, Akira Ishizaki, Keiji Ohtaka, Akira Akashi | 1988-10-11 |
| 4774539 | Camera having a focus detecting apparatus | Kazuhiko Arakawa, Keiji Ohtaka, Takeshi Koyama, Ichiro Ohnuki | 1988-09-27 |
| 4760418 | Flash photographing system | Akira Ishizaki | 1988-07-26 |
| 4745426 | Light measuring device for a camera | Akira Ishizaki | 1988-05-17 |
| 4739157 | Method of detecting the correlation between signals with weighting | Akira Akashi, Akira Ishizaki, Keiji Ohtaka, Hiroshi Ohmura | 1988-04-19 |
| 4728785 | Focus detecting device using adjustable inclined sensing means | Ichiro Ohnuki, Akira Ishizaki, Akira Akashi, Keiji Ohtaka, Takeshi Koyama | 1988-03-01 |
| 4716282 | Focus state detection method and apparatus with selective statistical processing | Akira Akashi, Hiroshi Ohmura, Akira Ishizaki, Keiji Ohtaka | 1987-12-29 |
| 4709138 | Apparatus for detecting shake of image of object | Akira Akashi, Akira Hiramatsu | 1987-11-24 |