Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839270 | Rapidly processable silver halide photographic light-sensitive material | Mitsuhiro Okumura | 1989-06-13 |
| 4818671 | Rapidly processable silver halide color photosensitive material | Keiji Ohbayashi, Mitsuhiro Okumura, Shigeo Tanaka | 1989-04-04 |