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. 25, 1988
Filed:
Jun. 17, 1986
Yukihide Urata, Minami-Ashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A color photographic material having at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, characterized in that a blue-sensitive silver halide emulsion which is used in at least one of the blue-sensitive silver halide emulsion layer or layers contains silver halide grains of an average size of 0.4.mu. or less and at least one sensitizing dye represented by formula I or II: ##STR1## wherein Z.sup.1, Z.sup.2 and Z.sup.3 each represent an atomic group necessary for completing an oxazole, benzoxazole, naphthoxazole, thiazole, benzothiazole, naphthothiazole, imidazole, benzimidazole or naphthoimidazole ring; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each represent a substituted or unsubstituted alkyl or aryl group; (X.sup.-) represents an acid anion; and n represents zero or 1. The photographic material is excellent in sensitivity, graininess, sharpness and storage stability, and gives an excellent color reproduction without color mixing.