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. 24, 1996
Filed:
May. 19, 1995
Applicant:
Inventors:
Hideo Ikeda, Minami-ashigara, JP;
Sadanobu Shuto, Minami-ashigara, JP;
Takefumi Hara, Minami-ashigara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430567 ; 430637 ;
Abstract
A light-sensitive silver halide emulsion contains tabular silver halide grains with an equivalent-circle diameter/thickness ratio of 8 to 100. In this light-sensitive silver halide emulsion, a variation coefficient of a grain size distribution of the tabular silver halide grains is 1% to 20%, and 50% or more (number) of all of the tabular silver halide grains are grains whose ratio, b/a, of a longest distance, a, between two or more twin planes of the tabular silver halide grain to a grain thickness, b, is 1.5.ltoreq.b/a<5.