公开(公告)号：US20200161919A1

公开(公告)日：2020-05-21

申请号：US16685671

申请日：2019-11-15

Applicant: IBIDEN CO., LTD.

Inventor： Haruhiko MORITA ,  Hitoshi Miwa ,  Shinobu Kato ,  Toshihiko Yokomaku ,  Hisashi Kato ,  Takahisa Hirasawa ,  Tetsuya Muraki ,  Takayuki Furuno

IPC: H02K3/26 ,  H02K3/28

Abstract: A coil substrate includes a flexible substrate, and a coil including a wiring and formed on the flexible substrate. The flexible substrate has a cut penetrating through the flexible substrate such that the cut is formed to extend along a portion of the coil.

公开(公告)号：US20190245401A1

公开(公告)日：2019-08-08

申请号：US16270642

申请日：2019-02-08

Applicant: IBIDEN CO., LTD.

Inventor： Haruhiko Morita ,  Shinobu Kato ,  Hitoshi Miwa ,  Hisashi Kato ,  Toshihiko Yokomaku

IPC: H02K3/26 ,  H02K3/28 ,  H02K11/215 ,  H02K13/00 ,  H02K23/58

CPC classification number: H02K3/26 ,  H02K3/28 ,  H02K11/215 ,  H02K13/006 ,  H02K23/58 ,  H02K2203/03

Abstract: A motor coil substrate includes a flexible insulating substrate having a cylindrical shape, wirings formed on a first surface of the flexible insulating substrate and a second surface of the flexible insulating substrate on the opposite side with respect to the first surface, and via conductors including copper plating penetrating through the flexible insulating substrate such that the via conductors are connecting the wirings formed on the first surface and the wirings formed on the second surface. The wirings and the via conductors form coils formed in spiral shapes, and the flexible insulating substrate is wound more than one turn in a circumferential direction of the cylindrical shape such that the first surface on an inner side of the cylindrical shape and the second surface on an outer side of the cylindrical shape oppose each other.