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. 14, 2015
Filed:
Aug. 07, 2012
Applicants:
Hiroaki Watanabe, Odawara, JP;
Masaaki Harada, Yokohama, JP;
Keiji Nose, Machida, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/02 (2006.01); F16C 13/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/02 (2013.01); G03G 15/0233 (2013.01);
Abstract
The present invention provides a charging member which has a low compression set and which can suppress the generation of image defects. A layer of an unvulcanized rubber composition including an unvulcanized acrylonitrile butadiene rubber and N,N'-methylenebis(1,4-phenylene)dimaleimide is vulcanized.