Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4335200 | Silver halide photographic materials | Katsuaki Iwaosa | 1982-06-15 |
| 4330617 | Photographic elements containing novel developing agent precursors | Katsuaki Iwaosa | 1982-05-18 |