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:
Apr. 28, 1981
Filed:
Oct. 29, 1979
Applicant:
Inventors:
Shinji Shimano, Odawara, JP;
Tsuneo Wada, Sagamihara i, JP;
Katsuo Mogaki, Isehara, JP;
Shinichi Nakamura, Odawara, JP;
Kouji Tokitou, Hachioju, JP;
Assignee:
Konishiroku Photo Industry Co., Ltd., Odawara, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430551 ; 430351 ; 430557 ; 430558 ; 430611 ; 430614 ; 430963 ;
Abstract
A color photographic material comprising, on a support, a silver halide emulsion layer which contains a 2-equivalent .alpha.-acylacetamide yellow coupler carrying a nitrogen-containing heterocyclic coupling off group, joined to a nitrogen atom, as being releasable upon the reaction with an oxidation product of a color developing agent and a compound of the following formula (I) or its tautomer: ##STR1## wherein X and Y are as herein defined, is described.