Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4722885 | Photographic light-sensitive material containing a specified graft polymer or copolymer | Shigeki Yokoyama, Junichi Yamanouchi, Masakazu Yoneyama | 1988-02-02 |
| 4712871 | Positioning mechanism for positioning auxiliary optical device relative to main optical device and the auxiliary optical device | Junichi Tanii | 1987-12-15 |
| 4659203 | Bayonet mount arrangement | Masatake Niwa | 1987-04-21 |
| 4637704 | Exchangeable lens which exchanges electrical signals with a camera body | Toshihiko Ishimura | 1987-01-20 |
| 4623614 | Silver halide photographic light-sensitive materials | Masakazu Yoneyama, Shigeki Yokoyama, Junichi Yamanouchi | 1986-11-18 |
| 4622288 | Photographic light-sensitive material having improved antistaticity | Shigeki Yokoyama, Junichi Yamanouchi, Masakazu Yoneyama | 1986-11-11 |
| 4620780 | Mount arrangement and interchangeable lens unit for photographic camera | Tsuneyo Metabi, Masatake Niwa | 1986-11-04 |
| 4618575 | Silver halide photographic light-sensitive material | Yasuo Mukunoki | 1986-10-21 |
| 4558001 | Silver halide photographic light-sensitive materials containing nonionic surface active antistatic agent | Shigeki Yokoyama, Hisashi Okamura, Hiroshi Kawasaki | 1985-12-10 |
| 4536071 | Mount arrangement and interchangeable lens unit for photographic camera | Tsuneyo Metabi, Masatake Niwa | 1985-08-20 |
| 4518354 | Silver halide photographic light-sensitive materials with antistatic layer containing nonionic surface active agent | Shigeki Yokoyama, Akira Hibino, Hiroshi Kawasaki | 1985-05-21 |
| 4510233 | Antistatic agent containing silver halide photographic light-sensitive materials | Shigeki Yokoyama, Akira Hibino, Hiroshi Kawasaki | 1985-04-09 |
| 4493885 | Photographic material with metal complexed dyes | Shinsaku Fujita, Shigetoshi Ono | 1985-01-15 |
| 4483603 | Automatic focusing arrangement for changing the focus driving direction in accordance with the type of interchangeable optical unit | Tsuneyo Metabi, Makoto Ando | 1984-11-20 |
| 4474873 | Silver halide photographic light-sensitive materials containing fluorinated compounds | Yasuo Mukunoki, Naohiko Sugimoto | 1984-10-02 |
| 4472493 | Photographic elements with development inhibitor precursors | Hisashi Okamura, Yukio Karino | 1984-09-18 |
| 4444876 | Silver halide photographic light-sensitive material | Tetsuo Takeuchi | 1984-04-24 |
| 4407937 | Silver halide photographic sensitive element containing a fluorine containing compound as an antistatic agent | Naohiko Sugimoto, Yasunori Ichikawa | 1983-10-04 |
| 4304847 | Color image forming dye bleach process | Koichi Nakamura, Isao Shimamura, Koichi Koyama, Shigeki Yokoyama | 1981-12-08 |