ELECTROMAGNETIC INDUCTION SENSOR, OVERLAY MEMBER FOR ELECTROMAGNETIC INDUCTION SENSOR, AND MANUFACTURING METHOD OF ELECTROMAGNETIC INDUCTION SENSOR
First Claim
1. An electromagnetic induction sensor that is used with a position indicator and that includes coils for electromagnetic coupling with the position indicator, the electromagnetic induction sensor comprising:
- a sensor board including the coils; and
an overlay member that includes a magnetic powder material layer, the magnetic powder material layer defining a layer surface and a thickness direction that extends perpendicularly to the layer surface,wherein a magnetization direction of magnetic powder in the magnetic powder material layer extends along the layer surface and perpendicularly to the thickness direction of the magnetic powder material layer.
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Accused Products
Abstract
Disclosed herein is an electromagnetic induction sensor that is used with a position indicator and includes coils for electromagnetic coupling with the position indicator. The electromagnetic induction sensor includes: a sensor board main body that includes an insulating substrate and a surface sheet attached to a side of a first surface of the insulating substrate, on which side a position is indicated by the position indicator; at least part of conductors forming the coils being formed on a second surface of the insulating substrate opposite from the first surface; and an overlay member that includes a magnetic powder material layer and is adhered to the side of the second surface of the sensor board main body.
2 Citations
19 Claims
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1. An electromagnetic induction sensor that is used with a position indicator and that includes coils for electromagnetic coupling with the position indicator, the electromagnetic induction sensor comprising:
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a sensor board including the coils; and an overlay member that includes a magnetic powder material layer, the magnetic powder material layer defining a layer surface and a thickness direction that extends perpendicularly to the layer surface, wherein a magnetization direction of magnetic powder in the magnetic powder material layer extends along the layer surface and perpendicularly to the thickness direction of the magnetic powder material layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An overlay member for an electromagnetic induction sensor including a sensor board, the sensor board including coils for electromagnetic coupling with a position indicator, the overlay member comprising:
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a magnetic powder material layer defining a layer surface and a thickness direction that extends perpendicularly to the layer surface, wherein a magnetization direction of magnetic powder in the magnetic powder material layer extends along the layer surface and perpendicularly to the thickness direction of the magnetic powder material layer. - View Dependent Claims (15, 16)
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17. A manufacturing method of an electromagnetic induction sensor, the manufacturing method comprising:
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providing a sensor board including coils for electromagnetic coupling with the position indicator; and placing an overlay member that includes at least a magnetic powder material layer over the sensor board, the magnetic powder material layer defining a layer surface and a thickness direction that extends perpendicularly to the layer surface, wherein a magnetization direction of magnetic powder in the magnetic powder material layer extends along the layer surface and perpendicularly to the thickness direction of the magnetic powder material layer. - View Dependent Claims (18, 19)
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Specification