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:
Nov. 24, 2020
Filed:
Mar. 25, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Yuichi Kikuchi, Suntou-gun, JP;
Satoru Nishioka, Suntou-gun, KR;
Kenji Takashima, Yokohama, JP;
Kazuhiro Yamauchi, Suntou-gun, JP;
Masahiro Kurachi, Susono, JP;
Takumi Furukawa, Susono, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided an electro-conductive member that can be used as a charging member capable of preventing the emergence of a ghost image. The member comprises an electro-conductive support and an electro-conductive layer, the electro-conductive layer has a matrix including a first cross-linked rubber, and domains, the domains each includes a second cross-linked rubber and an electronically conductive agent, at least some of the domains are exposed to an outer surface of the member to constitute protrusions, the outer surface is constituted by the matrix and the exposed domains, and in a double logarithmic plot with a frequency on the abscissa and an impedance on the ordinate, a slope at a frequency of 1.0×10Hz to 1.0×10Hz is −0.8 to −0.3, and an impedance at a frequency of 1.0×10Hz to 1.0×10Hz is 1.0×10to 1.0×10Ω.