Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4429035 | Black and white photographic materials | Eiichi Kato, Nobutaka Ohki | 1984-01-31 |
| 4362795 | Process for forming photographic images and photographic light-sensitive material for use therein | Minoru Yamada, Tsutomu Hamaoka | 1982-12-07 |
| 4284714 | Method of forming a photographic image | Mitsugu Tanaka, Minoru Yamada | 1981-08-18 |
| 4272613 | Color photographic process | Haruo Shibaoka | 1981-06-09 |
| 4268616 | Process for forming photographic images | Tsutomu Hamanka | 1981-05-19 |