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:
Nov. 19, 1996
Filed:
Aug. 21, 1995
Applicant:
Inventors:
Kozo Oka, Minami-ashigara, JP;
Kazuhiko Yanagida, Minami-ashigara, JP;
Taketoshi Hoshizaki, Minami-ashigara, JP;
Kazuhiro Koseki, Minami-ashigara, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355219 ; 361225 ; 430902 ;
Abstract
A charging roll fit for use at high speed, having good maintaining property of charging characteristics in long-term use, stable in electric resistance under the environmental conditions, and having no fear of pinhole leak and photoreceptor contamination, which comprises a conductive shaft and a conductive layer formed thereon, wherein said conductive layer contains a layer in which SnO.sub.2-x -coated BaSO.sub.4 particles having an electric resistance of 0.1 to 10 .OMEGA..multidot.cm are dispersed in a resin, and the value of x is 0 to 1.