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:
Dec. 19, 1978
Filed:
Apr. 19, 1977
Masatoshi Sugiyama, Minami ashigara, JP;
Eiichi Kato, Minami ashigara, JP;
Fuji Photo Film Co., Ltd., Minami ashigara, JP;
Abstract
A silver halide light-sensitive material containing at least one hydrophilic colloid layer which contains a basic polymer and at least one oxonol dye represented by the following general formula (I): ##STR1## wherein R represents an aliphatic residue having 4 or more carbon atoms, an aralkyl group or a heterocyclic group; X represents a hydrogen atom, a halogen atom, a sulfo group, a lower alkyl group or a hydroxy group; L represents a methine group including a substituted methine group; M represents a cation; and n represents 0, 1 or 2. The dye has no adverse affects on the photographic properties of the silver halide light-sensitive material and can be easily removed from the hydrophilic colloid layer during photographic processing.