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AssigneeFuji Photo Film Co., Ltd.
InventorsKozo Inouye, Yukio Yokota, Kiyoshi Nakazyo
Estimating the term…
A photographic color coupler in which a hydrogen atom at the coupling position capable of coupling with an oxidation product of an aromatic primary amine developing agent is substituted with a group represented by the following general formula: ##STR1## wherein R and R', which may be the same or different, each represents an alkyl group, an alkenyl group, an aryl group, an alkoxy group, an alkylthio group, an aryloxy group, a hydroxy group, or an amino group, and R and R' can combine each other to form a ring; and X represents an oxygen atom or a sulfur atom. These photographic color couplers are a novel class of two-equivalent color forming couplers which are suitable for use in color photography. A color photographic light-sensitive material containing the above described photographic color coupler and a method of forming a color image comprising developing an exposed photographic light-sensitive material in the presence of the above described photographic color coupler are also disclosed.
A method for forming color images which comprises developing a silver halide photographic light-sensitive material in the presence of a photographic color coupler in which a hydrogen atom at the coupling position capable of coupling with an oxidation product of an aromatic primary amine developing agent is substituted with the group represented by the following general formula:
A photographic silver halide emulsion containing a photographic color coupler in which a hydrogen atom at the coupling position capable of coupling with an oxidation product of an aromatic primary amine developing agent is substituted with the group represented by the following general formula:
A photographic light-sensitive material comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, and at least one of the emulsion layers contains a photographic color coupler in which a hydrogen atom at the coupling position capable of coupling with an oxidation product of an aromatic primary amine developing agent is substituted with the group represented by the following general formula:
Dependencies are inferred from the claim text.