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:
May. 26, 1987
Filed:
Oct. 10, 1986
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
An improvement in silver halide photographic light-sensitive materials having at least one silver halide emulsion layer on a support is disclosed. The improvement is that chemically sensitized silver halide grains contained in at least one of the emulsion layers have a distinct stratiform structure having substantially two parts comprising an inside core part and a shell part of the uppermost layer, wherein the inside core part of said grains is composed of silver halide containing 10 to 45% by mol of silver iodide, the shell part of the uppermost layer of the grains is composed of silver halide containing 5% by mol or less of silver iodide, and the emulsion containing silver halide grains having the distinct stratiform structure have an average silver iodide content of 7% by mol or more. The materials have high sensitivity, low fog and excellent graininess.