Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5055381 | Method for processing silver halide photosensitive materials including the replenishing of washing water having a controlled amount of calcium and magnesium compounds | Akira Abe, Yoshihiro Fujita | 1991-10-08 |
| 5034308 | Method for processing silver halide photosensitive material including the replenishing of washing water containing a chelating agent and a controlled amount of calcium and magnesium compounds | Akira Abe, Yoshihiro Fujita, Kazuhiro Aikawa | 1991-07-23 |
| 5006456 | Method for processing silver halide color photographic light-sensitive materials using sulphinc acids and salts or their precursors | Masakazu Morigaki, Takatoshi Ishikawa, Kazuto Andoh, Nobuo Seto, Shinji Ueda | 1991-04-09 |
| 4835092 | Method for processing a silver halide color photographic material using a color developer containing a chelating agent in the absence of benzyl alcohol | Takatoshi Ishikawa, Yoshihiro Fujita, Hiroshi Fujimoto | 1989-05-30 |
| 4820623 | Method for processing silver halide color photographic material | Keiji Mihayashi | 1989-04-11 |
| 4774167 | Method for processing silver halide color photographic materials wherein the color developer contains low concentrations of benzyl alcohol, hydroxylamine and sulfite | Takatoshi Ishikawa, Shinji Ueda | 1988-09-27 |