Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7196194 | Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound | Kiyoshi Takeuchi, Shigeki Uehira, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima +6 more | 2007-03-27 |
| 7193080 | Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound | Kiyoshi Takeuchi, Shigeki Uehira | 2007-03-20 |
| 6727053 | Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound | Kiyoshi Takeuchi, Shigeki Uehira, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima +6 more | 2004-04-27 |
| 6677110 | Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound | Kiyoshi Takeuchi, Shigeki Uehira | 2004-01-13 |
| 6200742 | Silver halide photographic light-sensitive material | Yasuhiro Kato, Yasuhiro Shimada | 2001-03-13 |
| 5580708 | Silver halide photographic material and color image forming process | Kiyoshi Kawai | 1996-12-03 |
| 5556985 | Pyrazolonoxonol compounds | Koji Wariishi | 1996-09-17 |
| 5556987 | Process for producing pyrazolecarboxamide derivative | Akira Ogawa | 1996-09-17 |
| 5543529 | 1-carbamoyl-5-hydroxypyrazole compounds and salts thereof | Koji Wariishi | 1996-08-06 |
| 5091295 | Color photographic material and method of forming color image | Shigeru Kuwashima | 1992-02-25 |