Abstract: An electronic erasing device includes a casing, an erasing portion slidably attached to the casing and having a bottom surface and a side surface that extends from an outer edge of the bottom surface, both the bottom surface and at least a part of the side surface protruding from an end of the casing, and a position indicator including a core body and a pressure detector that detects a pressure applied to the core body, the position indicator outputting a position indication signal indicating an erasure position indicated by the core body and information indicating the pressure. The position indicator is included in the erasing portion and fixed inside the casing such that a tip portion of the core body is positioned away from an outer side of the bottom surface of the erasing portion and the applied pressure is transmitted to the core body.

Abstract: A work step of electrical connection between a writing pressure detector and a circuit element of a circuit is reduced. An electronic pen includes a writing pressure detector that detects a pressure applied to a core body disposed on one end side of a tubular chassis in the axial center direction, a circuit board for which a flexible substrate formed into a shape allowed to extend in the axial center direction is used in the chassis, and a holder housed in the chassis in such a manner as to hold the writing pressure detector and the circuit board and extend in the axial center direction. In the circuit board, a writing pressure detector placement part, a circuit placement part at which a predetermined circuit is formed, and a line part at which a line pattern that electrically connects a component of the writing pressure detector placed on the writing pressure detector placement part and a circuit element of the circuit placement part is formed are formed to line up in the axial center direction.

Abstract: Provided is an electronic pen core body including a tip component portion coupled to an axis component portion. At least one end of the axis component portion in an axial direction is made of a material that is harder than a material from which the tip component portion is made. The axis component portion includes a recessed hole and a fitting portion directly or indirectly fitted to a pen pressure detector. The tip component portion includes a tip portion protruding from the one end of the axis component portion in the axial direction, a coupling core portion disposed within the recessed hole and coupled to an inner wall surface of the recessed hole of the axis component portion, and a second ring-shaped end surface that contacts a first ring-shaped end surface of the axis component portion. The first ring-shaped end surface is covered by the second ring-shaped end surface.

Abstract: A work step of electrical connection between a writing pressure detector and a circuit element of a circuit is reduced. An electronic pen includes a writing pressure detector that detects a pressure applied to a core body disposed on one end side of a tubular chassis in the axial center direction, a circuit board for which a flexible substrate formed into a shape allowed to extend in the axial center direction is used in the chassis, and a holder housed in the chassis in such a manner as to hold the writing pressure detector and the circuit board and extend in the axial center direction. In the circuit board, a writing pressure detector placement part, a circuit placement part at which a predetermined circuit is formed, and a line part at which a line pattern that electrically connects a component of the writing pressure detector placed on the writing pressure detector placement part and a circuit element of the circuit placement part is formed are formed to line up in the axial center direction.

Abstract: An electronic pen cartridge is mounted on a mounting part disposed in a pen-shaped casing. The electronic pen cartridge includes an electronic pen main unit and a mounting adapter. The electronic pen main unit includes a first coupling part configured to connect the mounting adapter to the electronic pen main unit in an axial center direction. The mounting adapter includes a second coupling part connected to the first coupling part of the electronic pen main unit, a third coupling part connected to the mounting part of the casing, and an elastic component that causes an elastic force to act between the mounting adapter and the electronic pen main unit in a connected state in which the second coupling part is connected to the first coupling part of the electronic pen main unit.

Abstract: A work step of electrical connection between a writing pressure detector and a circuit element of a circuit is reduced. An electronic pen includes a writing pressure detector that detects a pressure applied to a core body disposed on one end side of a tubular chassis in the axial center direction, a circuit board for which a flexible substrate formed into a shape allowed to extend in the axial center direction is used in the chassis, and a holder housed in the chassis in such a manner as to hold the writing pressure detector and the circuit board and extend in the axial center direction. In the circuit board, a writing pressure detector placement part, a circuit placement part at which a predetermined circuit is formed, and a line part at which a line pattern that electrically connects a component of the writing pressure detector placed on the writing pressure detector placement part and a circuit element of the circuit placement part is formed are formed to line up in the axial center direction.

Abstract: An electronic erasing device includes a casing, an erasing portion slidably attached to the casing and having a bottom surface and a side surface that extends from an outer edge of the bottom surface, both the bottom surface and at least a part of the side surface protruding from an end of the casing, and a position indicator including a core body and a pressure detector that detects a pressure applied to the core body, the position indicator outputting a position indication signal indicating an erasure position indicated by the core body and information indicating the pressure. The position indicator is included in the erasing portion and fixed inside the casing such that a tip portion of the core body is positioned away from an outer side of the bottom surface of the erasing portion and the applied pressure is transmitted to the core body.

Abstract: A work step of electrical connection between a writing pressure detector and a circuit element of a circuit is reduced. An electronic pen includes a writing pressure detector that detects a pressure applied to a core body disposed on one end side of a tubular chassis in the axial center direction, a circuit board for which a flexible substrate formed into a shape allowed to extend in the axial center direction is used in the chassis, and a holder housed in the chassis in such a manner as to hold the writing pressure detector and the circuit board and extend in the axial center direction. In the circuit board, a writing pressure detector placement part, a circuit placement part at which a predetermined circuit is formed, and a line part at which a line pattern that electrically connects a component of the writing pressure detector placed on the writing pressure detector placement part and a circuit element of the circuit placement part is formed are formed to line up in the axial center direction.

Abstract: A work step of electrical connection between a writing pressure detector and a circuit element of a circuit is reduced. An electronic pen includes a writing pressure detector that detects a pressure applied to a core body disposed on one end side of a tubular chassis in the axial center direction, a circuit board for which a flexible substrate formed into a shape allowed to extend in the axial center direction is used in the chassis, and a holder housed in the chassis in such a manner as to hold the writing pressure detector and the circuit board and extend in the axial center direction. In the circuit board, a writing pressure detector placement part, a circuit placement part at which a predetermined circuit is formed, and a line part at which a line pattern that electrically connects a component of the writing pressure detector placed on the writing pressure detector placement part and a circuit element of the circuit placement part is formed are formed to line up in the axial center direction.

Abstract: An electronic pen has increased strength, especially a pen tip portion that is not bent or broken even if the electronic pen is slimmed down. A core unit includes a ferrite core on which a coil is wound and a core rod. The core rod is fixed from a first end of the ferrite core to a second end of the ferrite core at a position including a center axis of the ferrite core and projects at an end thereof from the first end of the ferrite core. The ferrite core includes a first coil non-winding portion on which the coil is not wound provided on the pen tip side of the ferrite core. In operation, the end of the core rod and part of the first coil non-winding portion of the ferrite core project from an opening of a housing of the electronic pen.

Abstract: An electronic pen has an electronic pen circuit and a core body disposed in a tubular external casing, and a circuit board that is disposed in the external casing and on which at least part of the electronic pen circuit is disposed. The electronic pen circuit and the circuit board are housed in a portion of a tubular internal casing housed in the external casing, and the core body is housed in the internal casing and the portion of the internal casing is filled with a resin in a state in which a tip part of the core body protrudes outside of the internal casing from a first opening of the internal casing on one side in an axial center direction of the internal casing.

Abstract: A work step of electrical connection between a writing pressure detector and a circuit element of a circuit is reduced. An electronic pen includes a writing pressure detector that detects a pressure applied to a core body disposed on one end side of a tubular chassis in the axial center direction, a circuit board for which a flexible substrate formed into a shape allowed to extend in the axial center direction is used in the chassis, and a holder housed in the chassis in such a manner as to hold the writing pressure detector and the circuit board and extend in the axial center direction. In the circuit board, a writing pressure detector placement part, a circuit placement part at which a predetermined circuit is formed, and a line part at which a line pattern that electrically connects a component of the writing pressure detector placed on the writing pressure detector placement part and a circuit element of the circuit placement part is formed are formed to line up in the axial center direction.

Abstract: An electronic pen indicates a position to a position detection module by transmitting and receiving signals with the position detection module. A cylindrical casing, a core member, a writing-pressure detector, and a writing-pressure transmission member are accommodated in a interior portion of a cylindrical casing. A pressing member applies, based on a user operation, a displacement force to the core member from a first end, which is opposite to a second end serving a pen tip, to the second end serving as the pen tip. The writing-pressure transmission member includes a protrusion which, in operation, transmits a writing pressure, which has been exerted on the core member fitted in a fit-in portion included in the writing-pressure transmission member, to the writing-pressure detector. The pressing member is configured to apply a displacement force to the core member via the writing-pressure transmission member without applying an axial force to the writing-pressure detector.

Abstract: An electronic pen has a tubular housing which has an opening provided at one end in an axial direction of the housing and is closed at another end thereof, and has at least one electronic pen main body accommodated in the tubular housing. The electronic pen main body includes a core body having an end in the axial direction of the housing that serves as a pen tip, and a magnetic core provided at an end of core body that is opposite to the end of the core body that serves as the pen tip and having a coil wound thereon. In operation, the end of the core body that serves as the pen tip projects from the opening of the housing to outside of the housing, and part of the magnetic core projects from the opening of the housing to outside of the housing.

Abstract: A magnetic core coil has a core formed of a magnetic material, a coil wound around the core, and two terminals formed of a conductive material. The two terminals are fixed to the core, and first portions of the two terminals extend from one end of the core in an axial direction of the core. A first end and a second end of the coil are electrically connected to the first portions of the two terminals which protrude from the one end of the core in the axial direction of the core. The magnetic core coil can be made small in thickness (radial size) and size, and can be produced in a reduced number of production steps and at low cost.