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:
Feb. 02, 1993
Filed:
Oct. 02, 1990
Applicant:
Inventor:
Toshihiko Yagi, Shiroyama, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430503 ; 430567 ; 430569 ; 430571 ;
Abstract
A silver halide photographic light-sensitive material improved in gradation and processing stability is disclosed. The material has a support and provided thereon a blue-sensitive emulsion layer, a green-sensitive emulsion layer and red-sensitive emulsion layer, wherein at least one of said color-sensitive emulsion layers contains; tabular silver halide grains having an aspect ratio of not less than 1.2; and core/shell type regular crystal silver halide grains of which the average projection area accounts for not more than 40% of that of the tabular grains.