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. 21, 2015
Filed:
May. 16, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Katsuhisa Matsunaka, Inagi, JP;
Yutaka Arai, Kawasaki, JP;
Jun Miura, Kawasaki, JP;
Jiro Ishizuka, Moriya, JP;
Shuichi Tamura, Moriya, JP;
Ryo Yashiro, Tokyo, JP;
Hiroto Sugimoto, Toride, JP;
Naoki Akiyama, Toride, JP;
Kenji Hashimoto, Nagareyama, JP;
Yasuhiro Miyahara, Tokyo, JP;
Hiroki Muramatsu, Tokyo, JP;
Koji Sato, Moriya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is a fixing device, the heat generation amount of which can be obtained with a smaller amount of a microwave absorbing material. As a result, the start-up (warm-up) time for achieving a fixing temperature can be shortened without impairing characteristics such as flexibility, releasing property, and durability. The fixing device includes a heating member; a pressurizing member; and a microwave generating unit. It is configured to fix an unfixed toner on a recording material by passing the recording material through a nip formed between the heating member and the pressurizing member. The heating member includes a heat generating layer for generating heat with microwaves generated by the microwave generating unit. The heat generating layer contains a high molecular compound and a carbon fiber having an average fiber diameter of 80-150 nm, an average fiber length of 6-10 μm, and an absorption peak in a Raman spectrum resulting from a graphite structure.