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US 6,927,020 B2Granted
Silver halide color photographic material
AssigneeKonica Minolta Holdings, Inc.
InventorsRie Sakuragi, Satoru Ikesu, Takatugu Suzuki
Life of this patent
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Abstract
A silver halide color photographic material is disclosed, comprising on a support a silver halide emulsion layer comprising an yellow dye forming coupler represented by formula (I): A—B formula (I) wherein A is represented by formula (Ia), (Ia′), (Ia″), (Ib), (Ic), (Id), (Id′), (Ie), (Ie′), (Ie″), (If) or (If′); and B is represented by formula (II) described in the specification.
Claims9
A silver halide color photographic material comprising on a support a silver halide emulsion layer comprising a yellow dye forming coupler represented by formula (I):
- A—B formula (I)
- wherein A is represented by the following formula (Ia), (Ia′), (Ia″), (Ib), (Ib′), (Ib″), (Ic), (Ie), (Ie′), (Ie″), (If) or (If′);
- and B is represented by the following formula (II):
- wherein R11, R12, R12′ and R12″ each represents a hydrogen atom or a substituent;
- R11′ and R11″ each represents a hydrogen atom, an alkyl group, cycloalkyl group, aryl group, heterocyclic group, alkoxy group, aryloxy group, alkoxycarbonyl group, aryloxycarboxyl group, acylamino group, sulfonamido group, carbamoyl group, sulfamoyl group, ureido group, acyl group, sulfonyl group, sulfonyloxy group, alkylamino group, arylamino group or cyano group;
- X1, X1′ and X1″ each represents —N(R13)—, an oxygen atom or sulfur atom, in which R13 represents a hydrogen atom or a substituent;
- wherein R21, R22, R21′, R22′, R21″ and R22″ each represents a hydrogen atom or a substituent;
- X2, X2′ and X2″ each represents —N(R23)—, an oxygen atom or sulfur atom, in which R23 represents a hydrogen atom or a substituent;
- wherein X3 represents an oxygen atom or sulfur atom;
- Q3 represents a nonmetallic atom group necessary to form a carbon containing ring;
- wherein R51, R52, R53, R54, R55, R51′, R52′, R53′, R54′, R55′, R51″, R52″, R53″, R54″ and R55″ each represents a hydrogen atom or a substituent, provided that two selected from R51 to R55, two selected from R51′ to R55′, or two selected from R51″ to R55″ may combine with each other to form a ring;
- wherein R61 and R61′ each represents a hydrogen atom or a substituent;
- Q6 and Q6′ each represents a nonmetallic atom group necessary to form a carbon containing ring;
- wherein Y1 represents a hydrogen or a group capable of being released upon reaction with an oxidation product of a color developing agent;
- Z1 and Z2 each represents a hydrogen atom or a substituent.
12 more elements
Dependencies are inferred from the claim text.