Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370980 | Silver halide photographic light-sensitive material | Yasushi Usagawa, Akira Onishi, Yoshiko Ogawa, Shigeto Hirabayashi | 1994-12-06 |
| 5340707 | Silver halide photographic light-sensitive material | Akira Ohnishi, Yasushi Usagawa | 1994-08-23 |