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:
Apr. 11, 2017
Filed:
Dec. 16, 2014
Canon Kabushiki Kaisha, Tokyo, JP;
Yuki Nishizawa, Yokohama, JP;
Hiroshi Mano, Numazu, JP;
Minoru Hayasaki, Mishima, JP;
Aoji Isono, Naka-gun, JP;
Yosuke Kitagawa, Yokohama, JP;
Katsuhisa Matsunaka, Inagi, JP;
Kimitaka Ichinose, Mishima, JP;
Michio Uchida, Mishima, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image heating apparatus configured to heat an image formed on a recording material includes a cylindrical rotatable member including a conductive layer, a magnetic core inserted through the rotatable member, a coil helically wound around an outer side of the magnetic core within the rotatable member, and an inverter configured to supply an alternating current to the coil. A frequency of the alternating current supplied from the inverter is within a range of 20.5 to 100 kHz. The conductive layer generates heat by electromagnetic induction due to an alternating magnetic field produced from the alternating current supplied to the coil. The coil is wound at an interval of 1 mm or longer.