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:
Mar. 23, 2010
Filed:
Jun. 04, 2007
Takahiro Ushiro, Toride, JP;
Takahiro Ushiro, Toride, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image heating apparatus includes a coil for generating a magnetic flux; an endless belt having an electroconductive layer for generating heat by the magnetic flux of the coil wherein a recording material carrying image is heated by heat of the belt; a magnetic flux detecting means disposed opposed to the coil with the belt interposed therebetween and capable of detecting the magnetic flux from the coil, the magnetic flux detecting means including a detection portion capable of detecting such a part of the magnetic flux of the magnetic flux generated by the coil as is from a region corresponding to not less than one half of a heat generating region of the belt with respect to a widthwise direction of the recording material; and prohibition means for prohibiting electric power supply to the coil when an amount of the magnetic flux detected by the magnetic flux detecting means reaches a predetermined amount.