PROBLEM TO BE SOLVED: To provide a soft and flexible transmission coil for a transdermal wireless power transmission system.SOLUTION: There is provided a transmission coil for a transdermal wireless power transmission system in which spiral coils 5 produced by using a flexible printed board are laminated and included into a buck 6 made of a silicon resin. In a basic constitution, the spiral flexible coils produced from a flexible printed board are laminated as many as a required number according to transmission power, and put into the buck made of a silicon resin.COPYRIGHT: (C)2016,JPO&INPIT【課題】ソフトでフレキシブルな経皮無線電力伝送システム用伝送コイルを提供する。【解決手段】フレキシブルプリント基板を用いて作製した渦巻状のコイル5を積層してシリコン樹脂製のバック6に内蔵した経皮無線電力伝送システム用伝送コイルを提供する。基本構成は、フレキシブルプリント基板で作製した渦巻状のフレキシブルなコイルを、伝送電力に応じて必要な枚数を積層し、それをシリコン樹脂製のバックに入れたものである。【選択図】図3