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:
Oct. 18, 1994
Filed:
Dec. 28, 1992
Applicant:
Inventor:
Norihisa Hoshika, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355219 ; 250325 ; 361221 ; 361225 ;
Abstract
A charging device for charging a moving member to be charged includes a charging member for contact with the member to be charged to which a voltage is applied; wherein the charging member has a volume resistivity of not more than 1.times.10.sup.9 ohm.cm, and a surface resistivity at a surface contactable to the member to be charged not less than 5.times.10 ohm/.quadrature..