Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818668 | Silver halide color photographic materials | Seiji Ichijima, Kohzaburoh Yamada | 1989-04-04 |
HU
Hideo Usui
Overall (1989): #103,718 of 140,708Top 75%
1
Patents 1989