Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861852 | Polymer mordant | Junichi Yamanouchi | 1989-08-29 |
| 4797349 | Method for forming a color image comprising developing a light sensitive material containing a surfactant with a developer not containing benzyl alcohol | Osamu Takahashi, Tadashi Ogawa, Minoru Sakai | 1989-01-10 |