Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871658 | Silver halide photographic material that is resistant to fogging during storage | Eiichi Sakamoto, Yutaka Kaneko, Hidetaka Ninomiya, Takashi Kamio, Hideo Akamatsu +1 more | 1989-10-03 |