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:
Feb. 23, 2021
Filed:
Aug. 22, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image heating apparatus includes a cylindrical rotatable member, an exciting coil, a magnetic core, and a resin material layer provided between the exciting coil and the magnetic core. The exciting coil is a metal wire coated with heat-resistant resin. The resin material layer is provided between the exciting coil and the magnetic core and is a layer that is different from the heat-resistant resin of the metal wire. The resin material layer is provided on a surface of the magnetic core in a helical shape along the exciting coil. As viewed in a direction perpendicular to a longitudinal direction of the rotatable member, the exciting coil enters the resin material layer in a radial direction of the exciting coil.