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. 09, 1988
Filed:
Jul. 25, 1986
Applicant:
Inventors:
Tadashi Ogawa, Kanagawa, JP;
Takeshi Hirose, Kanagawa, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kangawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430505 ; 430558 ; 430642 ; 430935 ;
Abstract
A silver halide photographic material is disclosed, comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer, wherein said emulsion layer or a layer adjacent thereto contains at least one pyrazoloazole coupler and substantially all photographic layers including the light-sensitive silver halide layer and the layer adjacent thereto each having been coated on the same surface of the support and then dried have a pH lower than a pKa of said coupler by 1.0 or more. The material exhibits improved color reproducibility, sensitivity and development stability.