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:
Jul. 21, 1987
Filed:
Jun. 14, 1985
Applicant:
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03C / ; G03C / ;
U.S. Cl.
CPC ...
430367 ; 430569 ; 430608 ; 430599 ; 430943 ;
Abstract
A silver halide emulsion and a process for producing the same are disclosed. In the process, at least one compound selected from hydrogen peroxide or an adduct or precursor thereof, a peroxy acid salt, and ozone is added to an emulsion in the step prior to the end of chemical ripening. The emulsion exhibits reduced fog, improved stability with time, and improved sensitivity.