The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 1990
Filed:
Jun. 23, 1989
Toyoki Nishijima, Odawara, JP;
Masaki Tanji, Odawara, JP;
Konica Corporation, Tokyo, JP;
Abstract
A silver halide photographic material containing a specific magenta coupler and a heterocyclic mercapto compound is disclosed. The photographic material is raised in its resistivity to magenta fogging caused by contamination of developer with bleaching solution, without degradation of color reproducibility. The photographic material is comprised of a support having thereon a silver halide emulsion layer and a non-light-sensitive layer and the emulsion layer contains a magenta coupler represented by the following Formula I and at least one of the emulsion layer and the non-light-sensitive layer contains a compound represented by the following formula S. ##STR1##