Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888272 | Method for preparing silver halide photographic emulsions | Minoru Sato | 1989-12-19 |
| 4814264 | Silver halide photographic material and method for preparation thereof | Minoru Sato | 1989-03-21 |