Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841325 | Automatic focusing device for camera | Yoshinari Hamanishi, Ken Utagawa | 1989-06-20 |
| 4816663 | Camera system with vignetting calculation and memory means | Ken Utagawa | 1989-03-28 |
| 4719486 | Focus detecting apparatus for camera | Ken Utagawa, Yosuke Kusaka, Shozo Yamano | 1988-01-12 |
| 4634851 | Control device for automatic focusing | Akira Ogasawara, Sakuji Watanabe, Nobuhiko Terui, Ken Utagawa | 1987-01-06 |
| 4623927 | Solid state image pickup apparatus | — | 1986-11-18 |
| 4473286 | Automatic focusing device of a camera | Sakuji Watanabe, Akira Ogasawara, Nobuhiko Terui, Ken Utagawa | 1984-09-25 |
| 4422739 | Auto focus camera | Sakuji Watanabe, Akira Ogasawara, Nobuhiko Terui, Ken Utagawa | 1983-12-27 |
| 4336450 | Focus detecting apparatus | Ken Utagawa, Akira Ogasawara, Hiroshi Shirasu | 1982-06-22 |
| 4319238 | Camera display device | Akira Ogasawara, Ken Utagawa, Hiroshi Shirasu | 1982-03-09 |
| 4306143 | Device for extracting a plurality of space frequency components | Ken Utagawa, Hiroshi Shirasu, Akira Ogasawara | 1981-12-15 |
| 4297571 | Focus detecting device | Ken Utagawa, Hiroshi Shirasu, Akira Ogasawara | 1981-10-27 |