Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332878 | Photographic image-forming method | Shigeo Hirano, Hiroyuki Mifune, Eiichi Okutsu | 1982-06-01 |
| 4323643 | Silver halide photographic light-sensitive materials | Hiroyuki Mifune, Shigeo Hirano | 1982-04-06 |
| 4311781 | Highly-sensitive high-contrast photographic materials | Hiroyuki Mifune, Shunji Takada, Nobuo Sakai | 1982-01-19 |