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:
Dec. 05, 2000
Filed:
Aug. 08, 1995
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
399175 ;
Abstract
A charging device for charging a member to be charged includes a charging member to which a voltage is applicable to charge the member to be charged, the charging member having a magnetic brush of magnetic particles contactable to the member to be charged, and a supporting member for supporting the magnetic particles; wherein the the magnetic particles have a resistance value of 1.times.10.sup.4 -1.times.10.sup.7 (Ohm) when 1-1000(V) is applied thereto.