Issued Patents All Time
Showing 101–125 of 126 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, Keiji Ohtaka, Kenji Suzuki, Yasuo Suda | 1992-04-28 |
| 5089875 | Semiconductor device with MIS capacitor | — | 1992-02-18 |
| 5004935 | Sample and hold circuit | Akihiro Murayama | 1991-04-02 |
| 4992819 | Focus detecting device having a plurality of detecting areas and camera provided with the same | Keiji Ohtaka, Yasuo Suda | 1991-02-12 |
| 4975727 | Focus detecting device | Keiji Ohtaka | 1990-12-04 |
| 4959677 | Device for detecting the focus adjusted state of an objecting lens | Yasuo Suda, Kazuhiko Arakawa, Keiji Ohtaka, Ichiro Ohnuki | 1990-09-25 |
| 4949107 | Camera having telescopic capability | Nozomu Kitagishi, Sadatoshi Takahashi, Kouji Oizumi | 1990-08-14 |
| 4922282 | Optical apparatus for leading light fluxes transmitted through light dividing surface which is obliquely provided to focus detecting apparatus | Keiji Ohtaka | 1990-05-01 |
| 4907026 | Light projection system for automatic focus detection | Keiji Ohtaka | 1990-03-06 |
| 4878078 | Focus detecting device and method of making same | Keiji Ohtaka, Yasuo Suda | 1989-10-31 |
| 4859842 | Multi-directional focus state detection apparatus | Yasuo Suda, Ichiro Ohnuki, Akira Akashi, Akira Ishizaki, Keiji Ohtaka | 1989-08-22 |
| 4849782 | Focus detecting device | Keiji Ohtaka | 1989-07-18 |
| 4841326 | Apparatus for detecting the focus adjusted state of an objective optical system | Keiji Ohtaka | 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, Keiji Ohtaka | 1989-05-23 |
| 4812869 | Focus detecting apparatus | Akira Akashi, Akira Ishizaki, Yasuo Suda, Ichiro Ohnuki, Keiji Ohtaka | 1989-03-14 |
| 4801963 | Focus detecting system | Keiji Ohtaka | 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, Keiji Ohtaka | 1989-01-24 |
| 4792668 | Apparatus for detecting focusing state of objective lens | Akira Akashi, Akira Ishizaki, Yasuo Suda, Ichiro Ohnuki, Keiji Ohtaka | 1988-12-20 |
| 4792669 | Focus detecting device having two selectively movable lenses | Ichiro Ohnuki, Yasuo Suda, Akira Ishizaki, Akira Akashi, Keiji Ohtaka | 1988-12-20 |
| 4774539 | Camera having a focus detecting apparatus | Yasuo Suda, Kazuhiko Arakawa, Keiji Ohtaka, Ichiro Ohnuki | 1988-09-27 |
| 4728785 | Focus detecting device using adjustable inclined sensing means | Ichiro Ohnuki, Yasuo Suda, Akira Ishizaki, Akira Akashi, Keiji Ohtaka | 1988-03-01 |
| 4707103 | Optical system of variable magnification | Keiji Ikemori | 1987-11-17 |
| 4699493 | Focus detecting device | Keiji Ohtaka | 1987-10-13 |
| 4633291 | High-gain semiconductor device with capacitive coupling | — | 1986-12-30 |
| 4613490 | Process for preparing silicon nitride, silicon carbide or fine powdery mixture thereof | Takashi Suzuki, Takamasa Kawakami, Rieko Nakano, Kansei Izaki, Akira Mori +1 more | 1986-09-23 |