Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4629305 | Automatic exposure camera | Osamu Sato, Kiyoshi Negishi | 1986-12-16 |
| 4571046 | Automatic focus detecting camera | Koji Suzuki | 1986-02-18 |
| 4558940 | Manual aperture value setting circuit for camera | Takeo Kobayashi, Kiyoshi Negishi | 1985-12-17 |
| 4557575 | Photographing mode display switching circuit | Takeo Kobayashi, Kiyoshi Negishi | 1985-12-10 |
| 4555170 | Device for illuminating display unit in viewfinder | Yoshio Wakui, Kiyoshi Negishi | 1985-11-26 |
| 4514075 | Automatic control apparatus for photographic camera | Kiyoshi Negishi, Masahiro Kawasaki | 1985-04-30 |
| 4382669 | Disablement of shutter release in photographic camera having interchangeable objectives | Tetsuji Shono | 1983-05-10 |
| 4325623 | Shutter speed display device | Koji Suzuki | 1982-04-20 |
| 4324468 | Electric source circuit for camera | Koji Suzuki | 1982-04-13 |
| 4324462 | Exposure time control circuit for camera | Koji Suzuki | 1982-04-13 |
| 4306785 | Camera exposure time control circuit | Koji Suzuki | 1981-12-22 |
| 4222644 | Digital exposure display circuit | Masahiro Kawasaki | 1980-09-16 |
| 4201462 | Lens barrel having an aperture information transmission section | Naoyuki Uno, Fumio Urano, Hiroshi Kurei | 1980-05-06 |
| 4198148 | Display device in camera view finder | — | 1980-04-15 |
| 4196998 | Camera display device in view finder | Sinji Urata | 1980-04-08 |
| 4182556 | Camera indication device | Shinji Urata | 1980-01-08 |