公开(公告)号：US20170278630A1

公开(公告)日：2017-09-28

申请号：US15619268

申请日：2017-06-09

Applicant: CKD Corporation

Inventor： Akihiro ITO ,  Masayuki KOUKETSU ,  Takashi YAMAGUCHI ,  Takeshi FUKUDA

IPC: H01F41/12 ,  H01F5/00 ,  H01F7/08 ,  H01F5/06

CPC classification number: H01F41/125 ,  H01F5/003 ,  H01F5/06 ,  H01F7/08 ,  H01F27/2876 ,  H01F27/322 ,  H01F27/323 ,  H01F41/041 ,  H01F41/122 ,  H01F2007/068

Abstract: A method produces a coil sheet from an initial coil sheet in which a conductor layer, a thermally resistant insulating layer, a thermosetting, uncured adhesive layer, and a base layer are stacked in this order. The method includes a first cutting step of cutting the conductor layer into a predetermined shape through etching, and a second cutting step of cutting, after the first cutting step, the insulating layer and the adhesive layer into the predetermined shape through etching.