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. 22, 2016
Filed:
Mar. 30, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroomi Matsuzaki, Mishima, JP;
Koji Yamaguchi, Numazu, JP;
Kohki Kamata, Machida, JP;
Motomi Suzuki, Kashiwa, JP;
Yoshiyuki Beniya, Abiko, JP;
Yukinori Nagata, Mishima, JP;
Satoru Yamada, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A roller member used in an image forming apparatus including: a metallic shaft; and a covering layer, wherein the metallic shaft has a cylindrical shape formed so that one end portion and the other end portion of the metallic plate oppose each other, the one end portion and the other end portion each include a straight portion, a projection, and a depression, the projections on the one end portion engage the depressions on the other end portion, a straight area is located outside a projection and depression area in which the projection on the one end portion and the projection on the other end portion are aligned in an axial direction of the metallic shaft, and the projection and depression area is entirely covered with the covering layer and at least part of the straight area is exposed from the covering layer.