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:
Jul. 01, 2014
Filed:
May. 15, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Junji Ishikawa, Moriya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A fixing apparatus includes an induction heating coil configured to heat a heat generating member including a conductive heating element, a boosting circuit configured to boost a DC voltage obtained by rectifying AC power, a switching element configured to input a DC voltage boosted by the boosting circuit and to supply a high-frequency current to the induction heating coil, a driving circuit configured to drive the switching element, a temperature detection unit configured to detect a temperature of the heat generating member, and a control unit configured to control power supplied to the induction heating coil by controlling a boosting ratio of the boosting circuit and a driving frequency of the switching element by the driving circuit so that the temperature detected by the temperature detection unit reaches a target temperature.