Importance

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Abstract

A heating device includes: a heat generator configured to generate heat when supplied with electric power; a first insulator and a second insulator respectively layered on a front surface and a back surface of the heat generator and covering the heat generator; a first heat transfer body layered on the first insulator so as to cover the first insulator and a second heat transfer body layered on the second insulator and covering the second insulator; and a circumferential edge structure configured to seal circumferential edges of the first insulator and the second insulator. In the circumferential edge structure, the circumferential edges are sealed by direct or indirect joining of the first heat transfer body and the second heat transfer body.

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First Claim