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:
Feb. 12, 1991
Filed:
May. 11, 1989
Konica Corporation, Tokyo, JP;
Abstract
A silver halide light-sensitive photographic material comprising a support and, provided thereon, at least one silver halide emulsion layer containing a dye-forming coupler of Formula [I]: ##STR1## wherein R.sub.1 is an alkyl group or a cycloalkyl group; R.sub.2 is an alkyl group, a cycloalkyl group, an acyl group or an aryl group; R.sub.3 is a group which is substituted to a benzene ring; n is an integer of zero or 1; R.sub.4 is an organic group containing one linkage group containing a carbonyl unit or a sulfonyl unit; J is a ##STR2## wherein R.sub.5 is a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; and X.sub.1 is a group capable of being split off upon reaction with the oxidation product of a color developing agent.