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:
Aug. 23, 1994
Filed:
Sep. 14, 1993
Konica Corporation, Tokyo, JP;
Abstract
A silver halide photographic light-sensitive material containing a dye is disclosed. The dye is represented by a formula ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an acylamino group, an ureide group, an amino group, an acyl group, an alkoxy group, an aryloxy group, a hydroxyl group, a carboxyl group, a cyano group, a sulfamoyl group or a sulfonamide group; B represents a 5- or 6-membered oxygen-containing heterocyclic group or a 6-membered nitrogen-containing heterocyclic group; L.sub.1 through L.sub.3 independently represent a methine group; n represents 0 or 1. The compound of formula 1 has at least one carboxyl group, sulfonamide group or sulfamoyl group.