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:
Aug. 02, 2011
Filed:
Sep. 14, 2009
Koki Watanabe, Moriya, JP;
Daijiro Kato, Abiko, JP;
Koki Watanabe, Moriya, JP;
Daijiro Kato, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image heating apparatus of electromagnetic induction heating-type capable of providing a proper relative heat-generation distance with a magnetic flux generation member even when the magnetic flux generation member is bent by its own weight or thermally deformed includes at least an exciting coil, a holder for holding the exciting coil, and a rotatable fixation roller for generating heat by magnetic flux from the exciting coil to heat a material to be heated. The holder has an outer diameter φdat a central portion and an outer diameter φdat an end portion in a longitudinal direction of the holder perpendicular to a conveyance direction of the material to be heated. The outer diameters φdand φdsatisfies: φd<φd