Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5989801 | Silver halide photographic material and method for forming image | Toshio Hirosawa, Toshiko Nakamura, Yoshiro Hayafuchi, Katsuyuki Arasawa | 1999-11-23 |
| 5939247 | Silver halide photographic material and a process for forming images | Toshio Hirosawa, Toshiko Nakamura, Yoshiro Hayafuchi, Katsuyuki Arasawa, Junichi Komiyama +2 more | 1999-08-17 |
| 5728511 | Silver halide photographic material and image-forming process | Toshio Hirosawa, Junichi Komiyama, Yoshiro Hayafuchi, Toshiko Nakamura | 1998-03-17 |