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:
Feb. 16, 2016
Filed:
Nov. 04, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kazunari Hagiwara, Yokohama, JP;
Tatsuaki Orihara, Tokyo, JP;
Shuhei Tokiwa, Tokyo, JP;
Yasuyuki Matsumoto, Kawasaki, JP;
Naoki Fuei, Fujisawa, JP;
Makoto Fukatsu, Santou, JP;
Yoshikuni Ito, Tokyo, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0808 (2013.01); G03G 15/0818 (2013.01);
Abstract
A developing roller that is capable of carrying toner on a surface thereof, and that supplies the toner carried on the surface to a surface of a photosensitive drum when a voltage is applied thereto, includes: a rubber layer; and a surface layer that covers the rubber layer, contains alumina, and has a higher volume resistivity than the rubber layer.