Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989801 | Silver halide photographic material and method for forming image | Toshio Hirosawa, Kouji Katsube, Toshiko Nakamura, Yoshiro Hayafuchi | 1999-11-23 |
| 5939247 | Silver halide photographic material and a process for forming images | Toshio Hirosawa, Kouji Katsube, Toshiko Nakamura, Yoshiro Hayafuchi, Junichi Komiyama +2 more | 1999-08-17 |