Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863836 | Method for processing silver halide color photographic materials and color photographic developing composition | Takatoshi Ishikawa, Morio Yagihara | 1989-09-05 |
| 4833068 | Color photographic developing solution composition and method for processing a silver halide color photographic material | Kazuto Andoh, Hiroshi Fujimoto | 1989-05-23 |
| 4801521 | Method for processing silver halide color photographic material with a color developer comprising a hydrazine derivative | Nobuo Seto, Hideaki Naruse, Morio Yagihara, Kazuto Andoh, Takatoshi Ishikawa +1 more | 1989-01-31 |
| 4798783 | Method of processing silver halide color photographic material and photographic color developing composition | Takatoshi Ishikawa, Hiroshi Fujimoto, Morio Yagihara | 1989-01-17 |