Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Color photographic recording material containing 2-equivalent magenta couplers

Color photographic recording material containing 2-equivalent magenta couplers

US Patent 4942116 · Granted Jul 17, 1990

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Color photographic recording material1994
Azo dye salts useful as masking couplers and preparation thereof1993
Color photographic recording material containing new colored cyan couplers1991
Color photographic recording material containing 2-equivalent magenta couplers1991
Color photographic recording material containing color couplers1990
Color photographic recording material1990
Color photographic recording material with thiosulphonic acid ester1989
No-rinse photographic processing method and the stabilizing bath used for this m1989
Color photographic recording material1989
Process for the preparation of thioether compounds1989
Color photographic recording material containing a yellow DIR coupler1989
Color photographic recording material1988