Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877720 | Silver halide photographic material | Kozo Sato, Shigeru Ohno | 1989-10-31 |
| 4797353 | Method for developing of silver halide photographic materials utilizing reduced amounts of organic substances | Hiroshi Kawasaki, Masaki Satake | 1989-01-10 |