公开(公告)号：US12282614B2

公开(公告)日：2025-04-22

申请号：US18488458

申请日：2023-10-17

Applicant: Wacom Co., Ltd.

Inventor： Kenichi Ninomiya ,  Mamoru Ogata

IPC: G09G5/00 ,  G06F3/0354 ,  G06F3/038

Abstract: Provided is an electronic pen including a tubular housing having an opening at one end, a core body portion including a rod-shaped core body and a pressure member that holds a rear end of the core body and transmits a force applied to the core body, a writing pressure detector that detects a writing pressure applied to the core body, and a tubular holding member that accommodates and holds the core body portion. At least part of a side surface of the core body portion includes a flat surface portion parallel to an axial direction of the pen. An inner edge of the holding member has a cylindrical shape and at least part of the inner edge includes a protruding portion. With the core body portion mounted in the housing, the flat surface portion of the core body portion and the protruding portion of the holding member face each other.

公开(公告)号：US20240427435A1

公开(公告)日：2024-12-26

申请号：US18827542

申请日：2024-09-06

Applicant: Wacom Co., Ltd.

Inventor： Takayuki Arai ,  Kenichi Ninomiya ,  Takenori Kaneda

IPC: G06F3/0354 ,  H05K1/18 ,  H05K3/28

Abstract: A highly reliable waterproof electronic pen includes a board holder in a board housing including a recessed portion having an opening over a lower surface of the recessed portion. A circuit board is housed in the recessed portion of the board housing. Circuit components easily affected by heat are installed on a first surface of the circuit board, and circuit components not easily affected by heat are installed on a second surface of the circuit board. A thermosetting resin formed over the second surface of the circuit board when the circuit board is housed in the recessed portion seals the opening over the lower surface of the recessed portion of the board housing.

公开(公告)号：US11803286B2

公开(公告)日：2023-10-31

申请号：US18064872

申请日：2022-12-12

Applicant: Wacom Co., Ltd.

Inventor： Takenori Kaneda ,  Mamoru Ogata ,  Kenichi Ninomiya

IPC: G06F3/046 ,  G06F3/0354 ,  B43K29/00 ,  B43K19/18 ,  B43K29/08 ,  G06F3/044

CPC classification number: G06F3/046 ,  B43K19/18 ,  B43K29/00 ,  B43K29/08 ,  G06F3/03545 ,  G06F3/0442 ,  G06F2203/04105

Abstract: Provided is an electronic pen with a cylindrical housing including an opening at an end portion of the housing on a pen tip side of the housing, a cylindrical member disposed in the housing and fixed to the housing at a part on the pen tip side of the housing, and a core body formed in a rod shape by a material containing a pigment, the core body including a body portion inserted into the cylindrical member through the opening of the housing and a pull-out portion configured to enable the core body to be pulled out of the housing. A diameter of the body portion of the core body inserted into the cylindrical member is larger than a difference between an outer diameter of the cylindrical member and an inner diameter of the cylindrical member.

公开(公告)号：US11294480B2

公开(公告)日：2022-04-05

申请号：US17356027

申请日：2021-06-23

Applicant: Wacom Co., Ltd.

Inventor： Kohei Tanaka ,  Kenichi Ninomiya ,  Takenori Kaneda

IPC: G06F3/03 ,  G06F3/0354 ,  G06F3/044 ,  G06F3/038 ,  G06F3/046

Abstract: An electronic pen of an electromagnetic coupling type has a resonant circuit that includes a coil and that is configured to indicate a position to a position detection sensor through electromagnetic coupling between the resonant circuit and the position detection sensor. The electronic pen includes an electronic pen main body and a pen tip unit configured to be detachable from the electronic pen main body. The pen tip unit includes a pen tip casing in which at least the coil is housed. The electronic pen main body includes a circuit portion of the resonant circuit that is electrically coupled to the coil housed in the pen tip unit when the pen tip unit is attached to the electronic pen main body.

公开(公告)号：US20210232261A1

公开(公告)日：2021-07-29

申请号：US17230896

申请日：2021-04-14

Applicant: Wacom Co., Ltd.

Inventor： Kohei TANAKA ,  Hiroyuki Fujitsuka ,  Kenichi Ninomiya ,  Takenori Kaneda ,  Gunji Ishihara ,  Takashi Yamaguchi ,  Taketoshi Ito ,  Shuanglei Li

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

Abstract: An electronic pen includes a tubular casing, and a first coupling member and a second coupling member that are coupled to each other in a hollow portion of the casing in an axial direction of the casing. In the axial direction, the first coupling member and the second coupling member are coupled to each other, and in a coupling portion between the first coupling member and the second coupling member, a welded portion that attaches the first coupling member and the second coupling member to each other is formed. The first coupling member is coupled to a core. The second coupling member holds a printed circuit board. The core of the core-side component is made of a conductive material. The second coupling member includes a conductor that supplies, to the core, a signal from a signal transmitting circuit on the printed circuit board with a battery.

公开(公告)号：US20210055807A1

公开(公告)日：2021-02-25

申请号：US16994132

申请日：2020-08-14

Applicant: Wacom Co., Ltd.

Inventor： Mamoru Ogata ,  Kenichi Ninomiya

IPC: G06F3/0354

Abstract: An electronic pen includes a first casing, a second casing disposed within the first casing, and an electronic pen main body unit incorporating an electronic pen function disposed within the second casing, in which the electronic pen main body unit includes a side switch unit having an operating element exposed on a side surface of the second casing, and an operating opening portion is disposed in a side surface of the first casing, and the operating opening portion exposes the operating element exposed on the side surface of the second casing.

公开(公告)号：US10761620B2

公开(公告)日：2020-09-01

申请号：US16028333

申请日：2018-07-05

Applicant: Wacom Co., Ltd.

Inventor： Takenori Kaneda ,  Kenichi Ninomiya ,  Kohei Tanaka

IPC: G06F3/0354 ,  B43K29/08 ,  B43K7/02 ,  G06F3/046 ,  G06F3/038 ,  B43K24/16 ,  G06F3/044 ,  G06F3/0487

Abstract: An electronic pen includes an ink writing section including a core body and an ink holding section configured to hold an ink that is supplied to the core body, a circuit board, a transmission section which, in operation, transmits a signal, a connection member including a first side that holds an end portion of the ink writing section, on a side of the ink writing section opposite to the core body, and a second side that holds a first end portion of the circuit board, a pen pressure detector provided adjacent to a second end portion of the circuit board, and a casing configured to accommodate the ink writing section, the connection member, the circuit board and the pen pressure detector such that a tip portion of the core body protrudes from the casing.

公开(公告)号：US12204702B2

公开(公告)日：2025-01-21

申请号：US18486524

申请日：2023-10-13

Applicant: Wacom Co., Ltd.

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

IPC: G06F3/0354 ,  G06F3/033 ,  G06F3/041 ,  G06F3/048

Abstract: An electronic pen includes a casing, an opening portion formed on one side of the casing, a core body that projects outside of the casing through the opening portion, a pen module part, and a core body insertion member disposed in the casing and having a hollow space that houses the core body. The hollow space includes a hollow portion between an inner circumferential surface of the core body insertion member and an outer circumferential surface of the core body when the core body insertion member houses the core body, the hollow portion communicating, via the opening portion, with a first space external to the electronic pen. The hollow portion is separated from a second space in which the pen module part is disposed within the casing.

公开(公告)号：US12203825B2

公开(公告)日：2025-01-21

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 ,  G06F3/041

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：US11941188B2

公开(公告)日：2024-03-26

申请号：US18193451

申请日：2023-03-30

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: Provided is an electronic pen including an electronic pen main part including a first sealing member that covers circumference of a tip side of the electronic pen main part and a second sealing member disposed along an outer edge of the electronic pen main part at a position separate from a tip toward a rear end side of the electronic pen main part, and an inside body that is tubular and has an inner wall surface with which the first sealing member and the second sealing member come into contact through insertion of the tip side of the electronic pen main part into the inside body.