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:
Oct. 18, 2016
Filed:
May. 30, 2012
Toru Okazaki, Osaka, JP;
Tetsuji Matsuo, Kyoto, JP;
Takeshi Mifune, Kyoto, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Kyoto University, Kyoto-shi, Kyoto, JP;
Abstract
An induction heating apparatus includes a rotor having a rotation shaft, and a stator having a heating portion disposed at a distance from the rotor. A coil that generates magnetic flux in a direction of the heating portion is provided in the rotor. The heating portion is formed of a composite material of a magnetic material and a conductive material, and has a structure in which a magnetic material portion and a conductive material portion are combined. When the coil is in a position opposed to the heating portion, a cross-sectional area of the magnetic material portion is smaller than an area of linkage of magnetic flux generated by the coil in the heating portion, and the conductive material portion is disposed to surround a periphery of the magnetic material portion. A flow passage in which the heating medium circulates is provided in the heating portion.