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.

Date of Patent:
May. 16, 1989

Filed:

Jan. 14, 1987
Applicant:
Inventors:

Kenichi Kuwabara, Kanagawa, JP;

Toshiro Takahashi, Kanagawa, JP;

Keiichi Adachi, Kanagawa, JP;

Masahiro Okada, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430264 ; 430267 ; 430522 ; 430606 ; 430949 ;
Abstract

A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer; wherein said emulsion layer comprises a silver chloride emulsion or a silver chlorobromide emulsion containing 90 mol % or more silver chloride, which is prepared in the presence of a water-soluble rhodium salt in an amount of 1.times.10.sup.-7 to 2.times.10.sup.-5 mol per mol of silver halide; and wherein at least one of said emulsion layer and hydrophilic colloidal layers of said material contains a dye compound represented by formula (I) ##STR1## wherein: R.sub.1 represents an alkyl group, an alkoxy group, a hydroxy group, an amino group, a substituted amino group, an alkoxycarbonyl group, a carboxy group, a cyano group, a carbamoyl group, a sulfamoyl group, an ureido group, a thioureido group, an acylamido group, a sulfonamido group or a phenyl group, Q represents a sulfoalkyl group, a sulfoalkoxyalkyl group, or an aryl group having at least one sulfo group; R.sub.2 represents a hydrogen atom, an alkyl group, an alkoxy group, a hydroxy group or a halogen atom, and R.sub.3 and R.sub.4, which may be the same or different, each represents an alkyl group or a substituted alkyl group, or when taken together, R.sub.3 and R.sub.4 may form a 5- to 6-membered ring, provided that R.sub.1, R.sub.3, and R.sub.4 do not represent a methyl group at the same time.


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