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:
Mar. 06, 2018
Filed:
Oct. 24, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Takumi Furukawa, Susono, JP;
Hiroaki Watanabe, Odawara, JP;
Kenya Terada, Suntou-gun, JP;
Yuya Tomomizu, Yokohama, JP;
Toshiro Suzuki, Gotemba, JP;
Kenichi Yazawa, Suntou-gun, JP;
Kazuhiro Gesho, Suntou-gun, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided a charging member comprising an electro-conductive support and an electro-conductive surface layer, the surface layer including on the outer surface thereof, concave portions that are independent of each other, and holding an insulating particle in each of the concave portions, the insulating particle being exposed to the surface of the charging member and forms a convex portion on the surface of the charging member, in an orthogonal projection image of which the concave portions and the insulating particle are projected on a surface of the electro-conductive support, a site in which an outer edge of a projection image derived from the insulating particle and an outer edge of a projection image derived from each of the concave portions are separated, exists, and a part of a wall of each of the concave portions constitutes a part of the surface of the charging member.