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:
Sep. 05, 2017
Filed:
May. 25, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Isamu Takeda, Machida, JP;
Takanori Mitani, Meridian, ID (US);
Akimichi Suzuki, Yokohama, JP;
Satoshi Nishida, Numazu, JP;
Hideo Nanataki, Yokohama, JP;
Kazuhiro Doda, Yokohama, JP;
Yasuhito Minamishima, Odawara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A fixing apparatus includes a roller, a heating rotation member configured to form a pressure portion by coming into contact with the roller, the heating rotation member being rotated by rotation of the roller, and a pressing rotation member configured to form a nip portion by coming into contact with the roller, the pressing rotation member being rotated by the rotation of the roller, wherein micro-hardness of a surface of the heating rotation member at the pressure portion and micro-hardness of a surface of the pressing rotation member at the nip portion are both higher than micro-hardness of a surface of the roller, and wherein frictional force acting on the roller at the pressure portion is larger than frictional force acting on the roller at the nip portion.