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. 22, 1998
Filed:
Nov. 26, 1996
Atsuhiro Okawa, Minami-ashigara, JP;
Toshiyuki Makuta, Minami-ashigara, JP;
Toshiki Taguchi, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Kanagawa-ken, JP;
Abstract
There is disclosed novel color-developing agents of the formula (I). There is also disclosed silver halide photographic light-sensitive materials and image-forming methods, using the color-developing agent. The color-developing agent is excellent in color-forming property, and the image obtained from the color-developing agent is good in stability of hue and image. ##STR1## wherein Z.sup.1 represents an acyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group, or a carbonimidoyl group, Q.sup.1 represents a group of atoms required to form a 5- or 6-membered aromatic ring together with the C, Q.sup.2 represents a heterocyclic residue, Y.sup.1 represents a group capable of substitution onto the aromatic ring, m is 1 or 2, and n is an integer of 0 to 3.