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. 26, 2022
Filed:
Oct. 07, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Satoru Nishioka, Suntou-gun, JP;
Masahiro Kurachi, Susono, JP;
Kenji Takashima, Yokohama, JP;
Yuichi Kikuchi, Suntou-gun, JP;
Kazuhiro Yamauchi, Suntou-gun, JP;
Kana Sato, Numazu, JP;
Takumi Furukawa, Susono, JP;
Hiroaki Watanabe, Odawara, JP;
Kenya Terada, Suntou-gun, JP;
Yuya Tomomizu, Ichikawa, JP;
Toshimitsu Nakazawa, Toride, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A process for producing an electrophotographic electroconductive member having an electroconductive support and an electroconductive layer in the order mentioned. The electroconductive layer has a matrix including a crosslinked product of a first rubber, and a domain including a crosslinked product of a second rubber and an electroconductive particle, the process including the steps of: providing a rubber mixture for forming the domain, including carbon black and the second rubber by kneading the carbon black and the second rubber; providing a rubber mixture for forming the matrix, including the first rubber; kneading the rubber mixture for forming the domain and the rubber mixture for forming the matrix to prepare a rubber composition having a matrix-domain structure; forming a layer of the rubber composition on a surface of the electroconductive support; and curing the layer of the rubber composition on the surface of the electroconductive support to form the electroconductive layer.