US 12,405,679 B2
Position detection sensor and position detection device
Hikaru Matsuura, Saitama (JP); Takeru Izumisawa, Saitama (JP); and Masamitsu Ito, Saitama (JP)
Assigned to Wacom, Co., Ltd., Saitama (JP)
Filed by Wacom Co., Ltd., Saitama (JP)
Filed on Jun. 26, 2023, as Appl. No. 18/341,169.
Application 18/341,169 is a continuation of application No. 17/583,986, filed on Jan. 25, 2022, granted, now 11,725,963.
Claims priority of application No. 2021-041535 (JP), filed on Mar. 15, 2021.
Prior Publication US 2023/0332930 A1, Oct. 19, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 3/0354 (2013.01); G05G 9/047 (2006.01); G06F 3/046 (2006.01)
CPC G06F 3/03545 (2013.01) [G05G 9/047 (2013.01); G06F 3/046 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A position detection sensor of an electromagnetic induction type connected to a position detection circuitry, comprising:
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,
wherein at least some of the plurality of first loop coils each includes a straight portion extending in the second direction and a circumferential portion extending along an outer edge of the circular substrate, and
at least some of the plurality of second loop coils each includes a straight portion extending in the first direction and a circumferential portion extending along the outer edge of the circular substrate.