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:
Apr. 21, 1998
Filed:
Apr. 09, 1996
Applicant:
Inventors:
Assignees:
Canon Kasei Kabushiki Kaisha, Ibaraki-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399176 ; 492 48 ; 492 54 ; 492 56 ;
Abstract
A charging member, which is to be provided in contact with an object member and to which a voltage is to be applied to electrostatically charge the object member, has a substrate, and a metal layer and a surface layer of a seamless tube. The charging member may be used with a process cartridge and an electrophotographic apparatus.