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:
Nov. 30, 1993
Filed:
Apr. 10, 1992
Tetunori Matushita, Kanagawa, JP;
Yoko Idogaki, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A silver halide photographic light-sensitive material which provides an improved safelight property without adversely affecting the photographic properties of the light-sensitive material. The silver halide photographic light-sensitive material contains at least one compound represented by formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a substitutable group; W represents a nitrogen atom or a carbon atom; Z represents --Y.sub.1 --(R.sub.3)n.sub.2 or R.sub.3 in which R.sub.3 represents a hydrogen atom or a substitutable group; n.sub.0, n.sub.1 and n.sub.2 each represents 0 or 1; h represents 1 or 2; R.sub.1 and R.sub.2 and R.sub.3 may combine with each other to form a hydrocarbon ring or a heterocyclic ring; Y.sub.1 represents --CO--, --CO(.dbd.NR.sub.4)--, --C(.dbd.S)--, --C(.dbd.N.sup.+ R.sub.5 R.sub.6)--, --SO--, --SO.sub.2 --, --C(C.dbd.CR.sub.7 R.sub.8)--,--R.sub.6 C.dbd.N--, or --R.sub.6 C.dbd.CR.sub.9 --in [(R.sub.1).sub.n1 --Y.sub.1 ] when n.sub.1 is 1 and in --Y.sub.1 --(R.sub.3).sub.n2 when n.sub.2 is 1 in which R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 each represents a hydrogen atom or a substitutable group, Y.sub.1 represents a cyano group or a nitro group in [(R.sub.1).sub.n1 --Y.sub.1 ] when n.sub.1 is 0 and in --Y.sub.1 --(R.sub.3).sub.n2 when n.sub.2 is 0; X represents a divalent linkage group; D represents a photographic dye residue; and M represents an amphoteric group having a cationic group and an anionic group.