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. 13, 1988
Filed:
Aug. 11, 1987
Akira Ogawa, Kanagawa, JP;
Hiroshi Fukuzawa, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains at least one yellow dye-forming coupler represented by the formula (I) ##STR1## wherein R.sub.1 represents a substituted or unsubstituted tertiary alkyl group or a substituted or unsubstituted aryl group; R.sub.2 represents a chlorine atom or an alkoxy group; R.sub.3 represents a straight chain or branched chain alkyl group having from 8 to 26 carbon atoms; R.sub.4 represents a branched alkyl group having from 3 to 12 carbon atoms; and R.sub.5 represents a hydrogen atom or a halogen atom. The yellow dye-forming coupler represented by the formula (I) is excellent in solubility, dispersion stability and spectral absorption characteristics, has a good coupling reactivity which is not severely influenced by variations in pH of the color developing solution, and provides a yellow color image having high color density and excellent stability. A method for forming a yellow dye image in the presence of the yellow dye-forming coupler represented by the formula (I) is also disclosed.