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:
Jul. 30, 1996
Filed:
Mar. 18, 1992
Applicant:
Inventors:
Hiroki Kisu, Fujisawa, JP;
Masaharu Ohkubo, Yokohama, JP;
Kazushige Sakurai, Tokyo, JP;
Michihito Yamazaki, Tokyo, JP;
Erika Asano, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355219 ; 361221 ;
Abstract
A charging member includes an electrode to be supplied with a voltage; a surface layer contactable to a member to be charged; and wherein a cavity is provided between the electrode and the surface layer. The cavity extends in a circumferential direction of the charging member and/or the cavity has a configuration to provide a substantially constant state of contact between the charging member and the member to be charged.