Abstract: A keyboard device and a magnetic shield forming method are provided. The keyboard device includes: a plurality of displacement members (detected portions, conductors) arranged in a scale direction and displaced according to an operation of a player; and a substrate having a coil which generates a magnetic field for detecting displacement of the plurality of displacement members. The substrate includes a plurality of the coils provided respectively for the plurality of displacement members, and a magnetic shield partitioning the plurality of coils and formed by a conductive pattern of the substrate.

Abstract: A keyboard device and a key depression information detecting method are provided. The keyboard device includes: a coil generating a magnetic field; a displacement member having an outer surface and displaced at a position facing the coil during key depression; and a conductor provided on the displacement member. The conductor includes: a facing portion covering the outer surface of the displacement member to face the coil during key depression; and a front surface portion connected to the facing portion and covering an outer surface of the displacement member which is directed to a front side in a displacement direction of the displacement member.

Abstract: A touch sensor in which an increase in manufacturing processes is suppressed and which can be provided inexpensively is obtained. A touch sensor (1) has a structure in which resistance membranes (12A, 12B) and membranes (13A, 13B) made of pressure sensitive ink are formed on predetermined places of a film (11), two parts (11A, 11B) on which the resistance membranes (12A, 12B) are formed are interfolded so that the resistance membranes (12A, 12B) face each other, two parts (11C, 11D) on which the membranes (13A, 13B) are formed are interfolded so that the membranes (13A, 13B) face each other, and the interfolded two parts are further interfolded.

Abstract: A touch sensor in which an increase in manufacturing processes is suppressed and which can be provided inexpensively is obtained. A touch sensor (1) has a structure in which resistance membranes (12A, 12B) and membranes (13A, 13B) made of pressure sensitive ink are formed on predetermined places of a film (11), two parts (11A, 11B) on which the resistance membranes (12A, 12B) are formed are interfolded so that the resistance membranes (12A, 12B) face each other, two parts (11C, 11D) on which the membranes (13A, 13B) are formed are interfolded so that the membranes (13A, 13B) face each other, and the interfolded two parts are further interfolded.