Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5725998 | Process for developing black-and-white silver halide photographic light-sensitive materials containing a hydrazine compound and a nucleation compound, in a developer containing a developing agent and a mercapto compound | — | 1998-03-10 |
| 5508153 | Composition for developing a black-and-white silver halide photographic light-sensitive material | Wataru Ishikawa, Mariko Kato | 1996-04-16 |
| 5405732 | Method for processing black-and-white silver halide photographic light-sensitive materials | Akira Shimizu, Shoji Nishio, Hiroyuki Ushiroyama | 1995-04-11 |
| 5382507 | Method for processing black-and-white silver halide photographic light-sensitive materials | Akira Shimizu, Shoji Nishio, Hiroyuki Ushiroyama | 1995-01-17 |
| 5229248 | Silver halide photographic light sensitive material | Kenji Goto | 1993-07-20 |