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:
Sep. 02, 1980
Filed:
Feb. 27, 1978
Nobuo Furutachi, Minami-ashigara, JP;
Kotaro Nakamura, Minami-ashigara, JP;
Atsuaki Arai, Minami-ashigara, JP;
Minoru Yamada, Minami-ashigara, JP;
Keisuke Shiba, Minami-ashigara, JP;
Fuji Photo Film Co., Ltd., Ashigara, JP;
Abstract
A photographic two-equivalent magenta coupler represented by the following general formula (I): ##STR1## wherein (A) represents a residue of a magenta color image-forming coupler in which one of the hydrogen atoms in the coupling position is eliminated; Q represents an oxygen atom or NH group; and B represents the non-metallic atoms necessary to form a 5-membered or a 6-membered ring containing the nitrogen atom and the ##STR2## group. Color photographic light-sensitive materials containing the two-equivalent magenta coupler are also described.