利索-全球专利检索

  1. Login
  2. Sign Up

Search Results

26 records (took 0.02 seconds)

    Integrated circuit and electronic pen
    2.
    发明授权
    Integrated circuit and electronic pen 有权

    公开(公告)号：US11327584B2

    公开(公告)日：2022-05-10

    申请号：US17119942

    申请日：2020-12-11

    Applicant: Wacom Co., Ltd.

    Inventor： Shigeru Yamashita ,  Toshihiko Horie ,  Masamitsu Ito

    IPC: G06F3/038 ,  G06F3/0354 ,  H01L23/525 ,  H01L23/64 ,  H01L29/417 ,  H01L29/94

    Abstract: An integrated circuit includes a first terminal that is connected to a first end of a first capacitor, the first capacitor being included in a resonant circuit, a second terminal that is connected to a second end of the first capacitor, a plurality of second capacitors connected in parallel between the first and second terminals, and a control circuit which, in operation, changes a capacitance of each of the second capacitors. An electronic pen includes the integrated circuit and a first capacitor having a capacitance that varies based on pressure applied to a nib of the electronic pen.

    Electronic pen
    3.
    发明授权
    Electronic pen 有权

    公开(公告)号：US10768720B2

    公开(公告)日：2020-09-08

    申请号：US16542120

    申请日：2019-08-15

    Applicant: Wacom Co., Ltd.

    Inventor： Shigeru Yamashita ,  Ryoji Kamiyama ,  Masamitsu Ito

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

    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. The writing pressure detector placement part of the circuit board is held by the holder in the state of being along a direction perpendicular to the axial center direction in such a manner that the writing pressure detector can receive a pressure in the axial center direction applied to the core body through bending of the flexible substrate at a part of the line part.

    Position indicator including switch circuit that performs changeover between first resonance circuit and second resonance circuit
    4.
    发明授权
    Position indicator including switch circuit that performs changeover between first resonance circuit and second resonance circuit 有权

    公开(公告)号：US10452161B2

    公开(公告)日：2019-10-22

    申请号：US15455777

    申请日：2017-03-10

    Applicant: Wacom Co., Ltd.

    Inventor： Masamitsu Ito ,  Hidetaka Takiguchi ,  Shigeru Yamashita

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

    Abstract: A position indicator includes a first resonance circuit including an inductor and a capacitor, a second resonance circuit including the first resonance circuit and a variation device configured to vary a resonance frequency or a phase of the second resonance circuit in response to an act of a user, and a switch circuit configured to perform changeover between the first resonance circuit and the second resonance circuit. The switch circuit is changed over such that, when no signal is received from outside of the position indicator and when a signal other than a predetermined signal is received from outside of the position indicator, the second resonance circuit is selected, and when the predetermined signal is received from outside of the position indicator, the first resonance circuit is selected, and the selected resonance circuit is configured to electromagnetically couple with a conductor of a sensor of the position detection apparatus.

    Position pointer and position indicator cartridge
    6.
    发明授权
    Position pointer and position indicator cartridge 有权

    公开(公告)号：US10152144B2

    公开(公告)日：2018-12-11

    申请号：US15378008

    申请日：2016-12-13

    Applicant: Wacom Co., Ltd.

    Inventor： Toshihiko Horie ,  Ryoji Kamiyama ,  Shigeru Yamashita

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

    Abstract: A position indicator includes a tubular chassis in which an opening is made on one end in an axial direction as a pen tip side and another end. A position indicator cartridge is housed in a hollow part of the chassis. The position indicator cartridge includes a core body unit having a coil that forms part of a resonant circuit that is wound partly around a bar-shaped magnetic core, part of the magnetic core around which the coil is not wound forming a pen tip part, and a tubular body unit that houses at least a capacitor that forms part of the resonant circuit. A change circuit also forms part of the resonant circuit and is configured to change a resonant frequency or a phase of the resonant circuit according to a writing pressure applied to the core body unit.

    Electronic erasing device and writing information processing system
    9.
    发明授权
    Electronic erasing device and writing information processing system 有权

    公开(公告)号：US11385725B2

    公开(公告)日：2022-07-12

    申请号：US17243399

    申请日：2021-04-28

    Applicant: Wacom Co., Ltd.

    Inventor： Ryoji Kamiyama ,  Toshihiko Horie ,  Masamitsu Ito ,  Shigeru Yamashita ,  Fujii Kosuke

    IPC: G06F3/03 ,  G06F3/041 ,  G06F3/046 ,  G06F3/0346 ,  G06F3/0354

    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.

Patent Agency Ranking