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:
Oct. 05, 1976
Filed:
Jul. 17, 1975
Yasurharu Nakamura, Minami-ashigara, JA;
Masatoshi Sugiyama, Minami-ashigara, JA;
Hiroshi Sawaguchi, Minami-ashigara, JA;
Teturo Nagata, Minami-ashigara, JA;
Shinzo Kobayashi, Minami-ashigara, JA;
Tohru Sueyoshi, Minami-ashigara, JA;
Fuji Photo Film Co., Ltd., Minami-ashigara, JA;
Abstract
A photographic light-sensitive material comprising at least one hydrophilic colloid layer containing at least one dye represented by the following formula (I): ##SPC1## wherein R.sup.1 represents an alkyl group, a carboxy group, an alkoxycarbonyl group, a carbamoyl group, an alkylcarbamoyl group, a sulfamoyl group, an alkylsulfamoyl group, an acyl group, a hydroxy group, an alkoxy group, an alkylthio group, an amino group, a ureido group, an alkylureido group, a thioureido group or an alkylthioureido group; Q represents a sulfoalkyl group, a sulfoalkoxyalkyl group or a sulfoalkylthioalkyl group; L represents a methine group; n is 0 or 1; R.sup.2 represents --OR.sup.5 or ##EQU1## wherein R.sup.5, R.sup.6 and R.sup.7 each represents a hydrogen atom or an alkyl group; R.sup.3 represents a hydroxy group, an alkoxy group or an alkyl group; and R.sup.4 represents a hydrogen atom, an alkyl group, an alkoxy group, a sulfoalkoxy group, an alkylamino group or a dialkylamino group.