Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728785 | Focus detecting device using adjustable inclined sensing means | Ichiro Ohnuki, Yasuo Suda, Akira Ishizaki, Akira Akashi, Takeshi Koyama | 1988-03-01 |
| 4723142 | Focus detecting device | Kikuo Momiyama, Kazuo Fujibayashi | 1988-02-02 |
| 4717819 | Focus detecting device | Kikuo Momiyama, Kazuo Fujibayashi | 1988-01-05 |
| 4716282 | Focus state detection method and apparatus with selective statistical processing | Akira Akashi, Hiroshi Ohmura, Akira Ishizaki, Yasuo Suda | 1987-12-29 |
| 4712901 | Sharp focus detecting device | — | 1987-12-15 |
| 4699493 | Focus detecting device | Takeshi Koyama | 1987-10-13 |
| 4698492 | Focus detector system with a distortion compensation mask | Akira Hiramatsu, Yasuo Suda, Akira Akashi, Akira Ishizaki | 1987-10-06 |
| 4688920 | Focus state detecting system | Yasuo Suda, Hiroshi Ohmura, Akira Ishizaki, Akira Akashi | 1987-08-25 |
| 4670645 | Focus detecting device with shading reduction optical filter | Akira Akashi, Akira Ishizaki, Yasuo Suda, Akira Hiramatsu | 1987-06-02 |
| 4643557 | Exposure control apparatus | Akira Ishizaki, Akira Akashi, Yasuo Suda, Akira Hiramatsu | 1987-02-17 |
| 4634255 | Focus detection apparatus | Yasuo Suda, Akira Ishizaki, Akira Akashi, Akira Hiramatsu | 1987-01-06 |
| 4618236 | Focus detecting apparatus | Akira Akashi, Akira Ishizaki, Akira Hiramatsu, Yasuo Suda | 1986-10-21 |
| 4567123 | Diffusing plate | Takashi Suzuki, Kiyoshi Iizuka, Hidemasa Mizutani | 1986-01-28 |
| 4555169 | Focus detecting device for a camera | Yasuo Suda, Akira Akashi, Akira Ishizaki, Akira Hiramatsu | 1985-11-26 |
| 4549802 | Focus detection apparatus | — | 1985-10-29 |
| 4534637 | Camera with active optical range finder | Takashi Suzuki, Susumu Matsumura | 1985-08-13 |
| 4443088 | Focusing screen | — | 1984-04-17 |
| 4427265 | Diffusion plate | Takashi Suzuki, Kiyoshi Iizuka, Hidemasa Mizutani | 1984-01-24 |
| 4421398 | Focussing plate | Takashi Suzuki, Kiyoshi Iizuka, Hidemasa Mizutani | 1983-12-20 |