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:
Jun. 21, 2016
Filed:
Dec. 15, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Aoji Isono, Naka-gun, JP;
Masatoshi Itoh, Mishima, JP;
Yusuke Isomi, Yokohama, JP;
Hiroshi Mano, Numazu, JP;
Minoru Hayasaki, Mishima, JP;
Yuki Nishizawa, Yokohama, JP;
Akira Kuroda, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a fixing device, an alternating current is caused to flow through a coil so as to causes an electrically conductive layer of a rotating member to generate heat, and an unfixed image on a recording medium is heat fixed onto the recording medium by the heat generated by the electrically conductive layer. A frequency range of the alternating current is from 20.5 kHz to 100 kHz. With respect to a generatrix direction of the rotating member, a magnetic member and a spirally shaped portion of the coil have lengths, with which the magnetic member and the spirally shaped portion extend beyond both end portions of the rotating member.