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:
Jan. 06, 2015
Filed:
May. 04, 2011
Ryuta Mine, Toride, JP;
Ryuta Mine, Toride, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
A heating control device which is capable of detecting an abnormality of an object to be heated accurately. A power-supply unit applies the electric power to the electromagnetic induction heating coil. A magnetic flux detecting unit detects a magnetic flux emitted from the electromagnetic induction heating coil across the object, and outputs a voltage corresponding to the detected magnetic flux. A changing unit changes at least one of the detected magnetic flux voltage value and an abnormality detection threshold value based on relationship between an electric power set value that defines the electric power and an input voltage inputted to the power-supply unit. A determination unit compares the detected magnetic flux voltage value changed by the changing unit to the abnormality detection threshold value, and determines an abnormality of the object when the detected magnetic flux voltage value is larger than the abnormality detection threshold value.