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    PIEZOELECTRIC DEVICE AND ELECTRONIC DEVICE
    2.
    发明申请
    PIEZOELECTRIC DEVICE AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20180026175A1

    公开(公告)日：2018-01-25

    申请号：US15695406

    申请日：2017-09-05

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： TAKASHI KIHARA ,  Yoshihiro Yamaguchi ,  Jun Endo

    IPC: H01L41/113 ,  H01L41/047 ,  G06F3/03

    Abstract: An electronic device that includes a housing and a piezoelectric sensor. The piezoelectric sensor is disposed in contact with an inner wall surface of the housing while in a bent state. The piezoelectric sensor includes a piezoelectric film, a coverlay, a first electrode, a second electrode, a third electrode, and a substrate having flexibility. The first electrode is disposed on a surface of the substrate. The first electrode includes a wide part and a narrow part. The coverlay covers a boundary between the wide part and the narrow part. The piezoelectric film covers a boundary between a part of the first electrode which is covered with the coverlay and a part of the first electrode which is not covered with the coverlay.

    DEVICE FOR DETECTING HOLDING STATE OF AN OBJECT
    3.
    发明申请
    DEVICE FOR DETECTING HOLDING STATE OF AN OBJECT 审中-公开

    公开(公告)号：US20170176268A1

    公开(公告)日：2017-06-22

    申请号：US15454155

    申请日：2017-03-09

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： TAKASHI KIHARA ,  Masamichi Ando ,  Hiroaki Kitada ,  Jun Endo ,  Yoshihiro Yamaguchi

    IPC: G01L1/16 ,  G06F3/0354

    CPC classification number: G01L1/16 ,  G01L1/2287 ,  G06F3/03545

    Abstract: A device for detecting a holding state of an object. The device includes a housing for the object that has a shape that can be held by an operator and a piezoelectric sensor attached to the housing. Moreover, a detecting unit can detects a holding state of the housing by using a fluctuation amount of an output voltage of the piezoelectric sensor. The housing has a shape having a hollow space and the piezoelectric sensor has a flat film shape and is disposed in contact with an inner wall surface of the housing. The piezoelectric film produces charges when stretched and contracted in response to a displacement of the housing that are outputted as a voltage to the detecting unit. When detecting that the output voltage significantly fluctuates, the detecting unit identifies that the object is being held.

    PRESSING SENSOR
    5.
    发明申请
    PRESSING SENSOR 审中-公开
    压力传感器

    公开(公告)号：US20170024048A1

    公开(公告)日：2017-01-26

    申请号：US15285002

    申请日：2016-10-04

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： TAKASHI KIHARA ,  Jun Endo

    IPC: G06F3/041

    CPC classification number: G06F3/0414 ,  G01L1/16 ,  G06F2203/04105

    Abstract: A pressing sensor that includes a first substrate, a second substrate, and a piezoelectric film between the first substrate and the second substrate. A thickness of the first substrate is greater than a thickness of the second substrate.

    Abstract translation: 一种按压传感器，包括第一基板，第二基板和第一基板与第二基板之间的压电薄膜。 第一基板的厚度大于第二基板的厚度。

    ELECTRONIC DEVICE
    6.
    发明申请
    ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20180314365A1

    公开(公告)日：2018-11-01

    申请号：US16021265

    申请日：2018-06-28

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： TAKASHI KIHARA ,  Hideki Kawamura

    IPC: G06F3/044 ,  G06F3/01 ,  G01L1/16

    Abstract: A display device includes a housing, an operation plate, an electrostatic sensor, a piezoelectric sensor, a controller, a storage unit, a display, and a communication unit. When an output voltage of the piezoelectric sensor indicates a first voltage value (Vth1) or larger, the controller determines that the piezoelectric sensor has detected a change in a first pressing force and performs first processing. When an output voltage of the piezoelectric sensor indicates a second voltage value (Vth2) or larger, the controller determines that the piezoelectric sensor has detected a change in a second pressing force. When the piezoelectric sensor detects the change in the second pressing force and the electrostatic sensor continuously detects a touch during a period from the detection of the first pressing force to the detection of the second pressing force, the controller executes second processing.

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