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. 13, 2001
Filed:
Jan. 19, 2000
Tomoichiro Ohta, Shimizu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to an induction heating apparatus for heating an image on a recording material which has an electric conductor, a first coil, for inducing an eddy current in the electric conductor disposed over a longitudinal direction of the electric conductor, a second coil disposed so as to overlap an end portion of the first coil, a first power supply for supplying an alternating current to the first coil, a second power supply for supplying an alternating current to the second coil, a phase shifting circuit for controlling a phase of the alternating current supplied to the second coil, and control means for controlling the phase shifting circuit in conformity with a temperature of the electric conductor.