Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5736307 | Silver halide color photographic light-sensitive elements having improved image quality | Massimo Bertoldi, Antonio Poggi | 1998-04-07 |
| 5663040 | Silver halide photographic elements containing 2-equivalent 5-pyrazolone magenta couplers | Massimo Bertoldi, Anna Marie Canuti, Ferdinando Orengo | 1997-09-02 |
| 5646297 | Process for preparation of 2-equivalent 4-arylthio-5-pyrazolone magenta couplers | Anna Maria Canuti | 1997-07-08 |
| 4988811 | 5-(1,2,4)-triazolyl-S-triazines | Luigi Valbusa, Andrea Quaglia, Mario Tavella | 1991-01-29 |
| 4636457 | Process for forming direct positive images, direct positive silver halide elements, compositions and compounds as characteristics feature of such processes and elements | Luigi Valbusa, Andrea Quaglia, Mario Tavella | 1987-01-13 |