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. 13, 1988
Filed:
Mar. 27, 1987
Applicant:
Inventors:
Shuji Kida, Hino, JP;
Noritaka Nakayama, Hino, JP;
Katsunori Katoh, Hachioji, JP;
Takako Tanaka, Hachioji, JP;
Satoshi Nakagawa, Sagamihara, JP;
Kosaku Masuda, Akishima, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430558 ; 430386 ; 430387 ;
Abstract
A silver halide photographic light-sensitive material containing a 1H-pyrazolo[3,2-c]-s-triazole type magenta coupler is disclosed. The magenta coupler has an --SO.sub.2 -- group and at least one group selected from the group consisting of a --COOM group and a --SO.sub.3 M group, M being a hydrogen atom or a cation, in its molecule. The photographic material is improved in color development performance and preservability of magenta images.