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:
Sep. 21, 1993
Filed:
May. 08, 1992
Applicant:
Inventors:
Arthur H Herz, Rochester, NY (US);
Roger L Klaus, Rochester, NY (US);
Dale E Hamilton, Rochester, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430569 ; 430567 ;
Abstract
A photosensitive silver halide emulsion is prepared by providing an emulsion containing an anionic acid-substituted and a neutral organic ripening agent and then growing silver halide grains in the emulsion. This combination of organic ripening agents of differing charge types produces a superadditive effect on the growth of silver halide crystals.