Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880726 | Method of forming a color image | Keisuke Shiba, Seiji Ichijima, Kei Sakanoue | 1989-11-14 |
| 4851327 | Photographic color photosensitive material with two layer reflective support | Tetsuro Fuchizawa, Masaru Sano, Keisuke Shiba, Tadashi Ogawa | 1989-07-25 |
| 4806460 | Multilayer silver halide color photographic materials | Tadashi Ogawa, Koji Takahashi | 1989-02-21 |