Issued Patents 1982
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4358526 | Photographic light-sensitive sheet for the color diffusion transfer process | Isamu Itoh, Shigetoshi Ono, Tooru Harada, Yoshinobu Yoshida | 1982-11-09 |
| 4358532 | Photographic element | Koichi Koyama | 1982-11-09 |
| 4340661 | Photographic light sensitive sheet for color diffusion transfer process | Shigetoshi Ono | 1982-07-20 |
| 4336322 | Color photographic light-sensitive material | Koichi Koyama, Yoshio Inagaki, Kokichi Waki | 1982-06-22 |
| 4310693 | o-Aminophenol compounds | Koichi Koyama, Yoshio Inagaki | 1982-01-12 |