公开(公告)号：US20180164908A1

公开(公告)日：2018-06-14

申请号：US15824556

申请日：2017-11-28

Applicant: Wacom Co., Ltd.

Inventor： Kohei Tanaka ,  Kenichi Ninomiya

IPC: G06F3/0354 ,  G06K9/24

CPC classification number: G06F3/03545 ,  B43K21/16 ,  G06F3/0383 ,  G06K9/24

Abstract: A second portion of a writing device is caused to penetrate a through-hole of a tubular portion of a pen pressure transmitter, starting from a first end of the second portion of the writing device, and the tubular portion abuts a surface of a first portion of the writing device that faces the second portion of the writing device. When a pen pressure is exerted on the first portion of the writing device, the pen pressure also is exerted on the tubular portion of the pen pressure transmitter abutting the surface of the first portion of the writing device that faces the second portion of the writing device. The pen pressure is transmitted through the pen pressure transmitter to a pen pressure detector disposed at a position spaced apart from the writing device.

公开(公告)号：US20180101251A1

公开(公告)日：2018-04-12

申请号：US15840855

申请日：2017-12-13

Applicant: Wacom Co., Ltd.

Inventor： Hiroyuki Fujitsuka ,  Takenori Kaneda ,  Takayuki Arai ,  Kenichi Ninomiya ,  Kohei Tanaka

IPC: G06F3/0354 ,  G06F3/038 ,  G01L1/14

CPC classification number: G06F3/03545 ,  G01L1/14 ,  G01L1/148 ,  G06F3/0383 ,  G06F3/046

Abstract: A pen pressure detection device includes: a pressure sensor including electrodes that output electrical information corresponding to an applied pressure; and a holder configured to electrically connect the pressure sensor to a circuit board having a circuit that detects the applied pressure based on the electrical information output from the pressure sensor. The holder includes a first portion that retains the pressure sensor and a second portion that engages with the circuit board, and the holder has a surface on which wiring is formed, the wiring extending from the first portion to the second portion, and the electrodes of the pressure sensor being electrically connected to the circuit board via the wiring when the holder and the circuit board are engaged with each other. The pen pressure detection device can be easily assembled and maintain a connection to the circuit board when the applied pressure is high.

公开(公告)号：US20180024657A1

公开(公告)日：2018-01-25

申请号：US15654356

申请日：2017-07-19

Applicant: Wacom Co., Ltd.

Inventor： Kenichi Ninomiya ,  Takayuki Arai ,  Kohei Tanaka

IPC: G06F3/0354 ,  G06F3/033

CPC classification number: G06F3/03545 ,  G06F3/033 ,  G06F3/048

Abstract: An electronic pen includes: a tubular casing; a rod-shaped core body that projects outside of the casing through an opening of the casing, the opening being formed on one side in axial direction of the casing; a pen pressure detector disposed within a hollow portion of the casing, wherein the pen pressure detector, in operation detects a pen pressure applied to the core body; a core body insertion member disposed between the pen pressure detector and the opening of the casing within the hollow portion of the casing, the core body insertion member housing the core body movably in the axial direction of the casing and having a hollow space closed on a side of the pen pressure detector by a barrier; and a first sealing member that separates the hollow space of the core body insertion member from the hollow portion of the casing.

公开(公告)号：US12216842B2

公开(公告)日：2025-02-04

申请号：US18487929

申请日：2023-10-16

Applicant: Wacom Co., Ltd.

Inventor： Takenori Kaneda ,  Kohei Tanaka

IPC: G06F3/0354

Abstract: Disclosed is an electronic pen including a casing, a core body, a core body holding part disposed in the casing and holding a portion of the core body, electronic parts disposed at a rear stage of the core body holding part in the casing and performing electronic pen functions, an internal constituent part through which the core body penetrates on a pen tip side in the casing, a first ring-shaped elastic component in contact with an entirety of a circumference of a side surface of the internal constituent part and an entirety of a circumference of an inner wall surface of the casing, and a second ring-shaped elastic component in contact with an entirety of a circumference of a side surface of the core body holding part and an entirety of a circumference of an inner wall surface of the internal constituent part.

公开(公告)号：US12032757B2

公开(公告)日：2024-07-09

申请号：US18177606

申请日：2023-03-02

Applicant: Wacom Co., Ltd.

Inventor： Mamoru Ogata ,  Takenori Kaneda ,  Kenichi Ninomiya ,  Takayuki Arai ,  Kohei Tanaka

IPC: G06F3/0354 ,  G06F3/038

CPC classification number: G06F3/03545 ,  G06F3/0383

Abstract: An object of the present disclosure is to provide an electronic pen that is excellent in portability by being reduced in size, that has a side switch functioning stably, and that is easy to maintain. A pusher part of an electronic pen body part is inserted into an insertion part of an operator, and the operator is thus attached to the pusher part of the electronic pen body part in a state of being fitted into an operator opening part of an outer casing. The operator opening part of the outer casing is formed in a side surface thereof at a position corresponding to a button switch of the electronic pen body part being loaded into the outer casing and placed at a fixed position. Therefore, the button switch can reliably be depressed through the operator, and the side switch of the electronic pen is realized.

公开(公告)号：US20240151600A1

公开(公告)日：2024-05-09

申请号：US18412378

申请日：2024-01-12

Applicant: Wacom Co., Ltd.

Inventor： Takenori Kaneda ,  Kenichi Ninomiya ,  Kohei Tanaka

IPC: G01L9/00 ,  G01L5/1623

CPC classification number: G01L9/0072 ,  G01L5/1623 ,  G06F3/0412

Abstract: A pressure detection element of a capacitive system includes a dielectric having two opposing surfaces including a first surface and a second surface, a conductor layer provided on the first surface of the dielectric, a conductive elastic member provided on the second surface of the dielectric, a spacer that positions the conductive elastic member at a predetermined distance from the second surface of the dielectric, and a pressing member configured to push the conductive elastic member toward the dielectric. An end surface of the pressing member that presses the conductive elastic member has a predetermined curvature, with an apex at a center of the end surface. A protrusion is provided at the apex at the center of the end surface of the pressing member.

公开(公告)号：US11853487B2

公开(公告)日：2023-12-26

申请号：US17704989

申请日：2022-03-25

Applicant: Wacom Co., Ltd.

Inventor： Kohei Tanaka ,  Takayuki Arai ,  Kenichi Ninomiya ,  Takenori Kaneda

IPC: G06F3/0354 ,  G06F3/041 ,  G06F3/038 ,  G06F3/044 ,  G06F3/046

CPC classification number: G06F3/03545 ,  G06F3/0383 ,  G06F3/04164 ,  G06F3/044 ,  G06F3/046 ,  G06F2203/0384

Abstract: An electronic pen includes a circuit board disposed such that an axial direction of a casing is aligned with a longitudinal direction of the circuit board, an electronic circuit on the circuit board, and a battery having a columnar shape disposed on a side of the circuit board opposite to a pen tip side of the circuit board inside a hollow portion of the casing such that positive and negative electrode conductors protruding from an end surface of the battery extend toward the circuit board. The battery is disposed such that a separation space is formed between the end surface and an end portion of the circuit board and such that tip portions of the positive and negative electrode conductors are in contact with the circuit board. The circuit board and the tip portions of the positive and negative electrode conductors are electrically connected to each other by soldered portions.

公开(公告)号：US11465436B2

公开(公告)日：2022-10-11

申请号：US17343551

申请日：2021-06-09

Applicant: Wacom Co., Ltd.

Inventor： Kohei Tanaka ,  Kenichi Ninomiya

IPC: B43K29/08 ,  B43K7/00 ,  G06F3/0354

Abstract: A position indicator that enables a component having a writing function to be easily replaced. The component having the writing function can be inserted/extracted into/from a first housing through a second opening of the first housing. When the second opening of the first housing and a third opening of a second housing are engaged in a state in which the component having the writing function has been inserted into the first housing, a resonant circuit is formed that includes a circuit in which a coil inside the first housing and a writing pressure detector inside the second housing are electrically connected to each other.

公开(公告)号：US11237652B2

公开(公告)日：2022-02-01

申请号：US17080682

申请日：2020-10-26

Applicant: Wacom Co., Ltd.

Inventor： Kohei Tanaka ,  Kenichi Ninomiya ,  Ryuto Sakamoto

IPC: G06F3/038 ,  G06F3/0354

Abstract: An electronic pen includes an electrically conductive coil spring that expands and contracts, a core body having electrical conductivity, a writing pressure detector having a fitting part fitted to an end of the core body on a side of the core body that is opposite to a side of the core body that includes a pen tip, and an electronic circuit that includes an oscillating circuit. The electronic circuit, in operation, causes a detection result from the writing pressure detector to be included in a signal from the oscillating circuit. The core body penetrates through a center axis of the coil spring and is not biased by the coil spring, and a first end of the coil spring on a side of the coil spring adjacent to the pen tip is connected to the core body and a second end of the coil spring is connected to the electronic circuit.

公开(公告)号：US11150750B2

公开(公告)日：2021-10-19

申请号：US16938496

申请日：2020-07-24

Applicant: Wacom Co., Ltd.

Inventor： Kohei Tanaka ,  Kenichi Ninomiya ,  Takenori Kaneda ,  Toshihiko Horie

IPC: G06F3/0354 ,  B43K5/16

Abstract: An electronic pen main body unit of an electronic pen having a function of a fountain pen includes an ink writing unit in which a cartridge housing liquid ink is fitted to a rear end portion of a pen core, and a pen body is disposed so as to be superposed on the pen core in a direction orthogonal to a coupling direction of the pen core and the cartridge, and an interaction circuit having an electronic part which, in operation, exchanges a signal with a tablet. The interaction circuit is disposed on a side of the pen core opposite the pen body in the direction orthogonal to the coupling direction of the pen core and the cartridge in a state in which the interaction circuit recedes to the cartridge side from a writing end of the pen body in the coupling direction of the pen core and the cartridge.