公开(公告)号：US20230332930A1

公开(公告)日：2023-10-19

申请号：US18341169

申请日：2023-06-26

Applicant: Wacom Co., Ltd.

Inventor： Hikaru MATSUURA ,  Takeru IZUMISAWA ,  Masamitsu ITO

IPC: G01D5/20 ,  G01B7/30

CPC classification number: G01D5/20 ,  G01B7/30

Abstract: The present disclosure is directed to a position detection sensor of an electromagnetic induction type connected to a position detection circuitry. The position detection sensor includes a circular substrate, a plurality of first loop coils arranged in a first direction on the circular substrate, and a plurality of second loop coils arranged in a second direction on the circular substrate, the second direction intersecting the first direction. Each of the plurality of first loop coils includes a straight portion extending in the second direction and a circumferential portion disposed along an outer edge of the circular substrate, and each of the plurality of second loop coils includes a straight portion extending in the first direction and a circumferential portion disposed along the outer edge of the circular substrate.

公开(公告)号：US20220291021A1

公开(公告)日：2022-09-15

申请号：US17583986

申请日：2022-01-25

Applicant: Wacom Co., Ltd.

Inventor： Hikaru MATSUURA ,  Takeru IZUMISAWA ,  Masamitsu ITO

IPC: G01D5/20 ,  G01B7/30

Abstract: The present disclosure is directed to a position detection sensor of an electromagnetic induction type connected to a position detection circuitry. The position detection sensor includes a circular substrate, a plurality of first loop coils arranged in a first direction on the circular substrate, and a plurality of second loop coils arranged in a second direction on the circular substrate, the second direction intersecting the first direction. Each of the plurality of first loop coils includes a straight portion extending in the second direction and a circumferential portion disposed along an outer edge of the circular substrate, and each of the plurality of second loop coils includes a straight portion extending in the first direction and a circumferential portion disposed along the outer edge of the circular substrate.