| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-frequency induction heating device capable of heating with uniform temperature distribution with a simple construction. Ž<P>SOLUTION: The high-frequency induction heating device is provided with: a first ferrite core of a U-shaped formation composed of convex portions formed projected at both ends of in a conveyance direction crossing a width direction of a plate type conductive material and a coupling portion to connect the convex portions, arranged along a width direction of the plate type conductive material with the same length as the width direction of the plate type conductive material; and a second ferrite core of a U-shaped formation composed of convex portions formed projected at both ends of in a conveyance direction crossing a width direction of a plate type conductive material and a coupling portion to connect the convex portions, arranged along a width direction of the plate type conductive material with the same length as the width direction of the plate type conductive material, and also arranged to keep a predetermined spacing from the first ferrite core, with each of the convex portions at both ends arranged opposed. At least either the first or the second ferrite core has a pair of swollen portions formed near both end faces of the same in a width direction. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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