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. 28, 1984
Filed:
Mar. 24, 1983
Shigeru Nakamura, Kanagawa, JP;
Shigetoshi Ono, Kanagawa, JP;
Seiji Suzuki, Kanagawa, JP;
Hirohisa Suzuki, Kanagawa, JP;
Fuji Photo Film Company, Limited, Kanagawa, JP;
Abstract
A color diffusion transfer photographic element comprising a support having provided thereon a layer containing a dye-providing material associated with a light-sensitive silver halide emulsion, wherein said dye-providing material is a metal chelate compound represented by the following general formula (I) or (II): ##STR1## wherein M.sup.I represents a monovalent, divalent, or trivalent cation; X represents a monovalent, divalent, or trivalent anion; Z and Z.sup.2 each represents an aromatic carbon ring nucleus or heterocyclic ring nucleus having 5 to 7 carbon atoms; G represents a chelating group; Z.sup.1 represents an aromatic carbon ring nucleus or heterocyclic nucleus composed of 5 to 7 atoms; said nucleus having (a) a nitrogen atom, or (b) a carbon atom bonded to a chelating group at the position adjacent to the position bonded to the azo group; Z.sup.3 represents an electron attractive group; Z.sup.4 represents an alkyl group, an aryl group, or a substituted amino group; L represents a ligand including a dye ligand; M.sup.II represents a metal ion weakly coordinated to the dye ligand moiety as compared with the metal ion contained in the image-receiving layer; and p, r and n each is an integer of 0 to 5 and q is 1, 2 or 3 and take a combination that the charges of the total chelate dyes become zero, wherein the chelate compound further contains (1) a carrier component losing the diffusible property or (2) a ballasted carrier capable of releasing a diffusible dye when the silver halide emulsion is developed under an alkaline condition.