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    Vibrating device
    3.
    发明授权
    Vibrating device 有权

    公开(公告)号：US10897005B2

    公开(公告)日：2021-01-19

    申请号：US15890669

    申请日：2018-02-07

    Applicant: TDK CORPORATION

    Inventor： Kaoru Kijima ,  Tatsuya Taki ,  Shunsuke Ueno ,  Atsushi Ezawa ,  Haruna Sumi ,  Tomohiro Takeda

    IPC: H01L41/053 ,  H01L41/09

    Abstract: A vibrating device includes a piezoelectric element, a resin member having electric insulation, a vibrating member made of metal, a first adhesive layer, and a second adhesive layer. The resin member includes a first principal surface and a second principal surface opposing each other. The vibrating member includes a third principal surface and a fourth principal surface opposing each other. The first adhesive layer joins the piezoelectric element and the first principal surface. The second adhesive layer joins the second principal surface and the third principal surface. An area of the resin member is greater than an area of the piezoelectric element, and an area of the vibrating member is greater than the area of the piezoelectric element. An area where the second adhesive layer adheres to the vibrating member is greater than an area where the first adhesive layer adheres to the resin member.

    Vibrating device
    4.
    发明授权
    Vibrating device 有权

    公开(公告)号：US10825980B2

    公开(公告)日：2020-11-03

    申请号：US15894315

    申请日：2018-02-12

    Applicant: TDK CORPORATION

    Inventor： Kaoru Kijima ,  Tatsuya Taki ,  Kazushi Tachimoto ,  Toshiki Maruyama

    IPC: H01L41/047 ,  H01L41/053 ,  H01L41/083 ,  H01L41/09

    Abstract: A vibrating device includes a diaphragm, a piezoelectric element, and a wiring board. The piezoelectric element and the wiring board are bonded to a first principal plane of the diaphragm. The wiring board is electrically connected with the piezoelectric element. The piezoelectric element includes a piezoelectric element body, a plurality of internal electrodes, and a plurality of external electrodes. The piezoelectric element body has a second principal plane, a third principal plane, and a side surface. The third principal plane and the side surface are bonded to the first principal plane. The wiring board has a resin film, a plurality of conductors, and a coating film. The coating film is disposed on the plurality of conductors in such a way as to cover the plurality of conductors. One end portions of the plurality of conductors are exposed from the coating film and electrically connected with corresponding external electrodes.

    Vibrating device
    5.
    发明授权
    Vibrating device 有权

    公开(公告)号：US10854806B2

    公开(公告)日：2020-12-01

    申请号：US15894169

    申请日：2018-02-12

    Applicant: TDK CORPORATION

    Inventor： Kaoru Kijima ,  Tatsuya Taki ,  Kazushi Tachimoto

    IPC: H01L41/047 ,  H01L41/09 ,  H01L41/187 ,  H01L41/083

    Abstract: A vibrating device includes a piezoelectric element, a wiring board electrically connected with the piezoelectric element, and a diaphragm including a metal. The piezoelectric element and the wiring board are bonded to the diaphragm. The piezoelectric element includes a piezoelectric element body, a plurality of internal electrodes, and a plurality of external electrodes. The piezoelectric element body has a first principal plane and a second principal plane opposed to each other. The plurality of internal electrodes is disposed in the piezoelectric element body. The internal electrodes are opposed to each other in a direction in which the first principal plane and the second principal plane are opposed. The plurality of external electrodes is disposed on the first principal plane, and is electrically connected with corresponding internal electrodes, of the plurality of internal electrodes. The wiring board has a resin film and a plurality of conductors.

    Ultrasonic device
    8.
    发明授权
    Ultrasonic device 有权

    公开(公告)号：US12109590B2

    公开(公告)日：2024-10-08

    申请号：US17399319

    申请日：2021-08-11

    Applicant: TDK CORPORATION

    Inventor： Tatsuya Taki

    IPC: B06B1/06

    CPC classification number: B06B1/0681

    Abstract: An ultrasonic device includes a case, a piezoelectric element, a sound absorbing material, and a vibration-proof material. The case defines a housing space. The piezoelectric element is disposed in the housing space. The sound absorbing material is disposed on the piezoelectric element and is made of a foaming material. The vibration-proof material is disposed around the sound absorbing material and is in contact with an inner face of the case. Between the piezoelectric element and the sound absorbing material, a first space is formed.

    Vibration device
    9.
    发明授权
    Vibration device 有权

    公开(公告)号：US11548030B2

    公开(公告)日：2023-01-10

    申请号：US16759593

    申请日：2018-10-25

    Applicant: TDK CORPORATION

    Inventor： Yoshiki Ohta ,  Kazushi Tachimoto ,  Hideya Sakamoto ,  Tetsuyuki Taniguchi ,  Tatsuya Taki ,  Tomohiro Takeda ,  Akihiro Takeda

    IPC: G01L9/00 ,  H01L21/00 ,  B06B1/06 ,  H01L41/047 ,  H01L41/083 ,  H01L41/09

    Abstract: A piezoelectric element includes a piezoelectric element body including a first principal surface and a second principal surface opposing each other, and a plurality of external electrodes disposed on the first principal surface. A vibration member includes a third principal surface opposing the second principal surface. The piezoelectric element is joined to the third principal surface. A wiring member is electrically connected to the piezoelectric element. The wiring member includes a region located on the plurality of external electrodes and joined to the plurality of external electrodes. The region of the wiring member monolithically covers the plurality of external electrodes when viewed from a direction orthogonal to the first principal surface.

    Piezoelectric unit
    10.
    发明授权
    Piezoelectric unit 有权

    公开(公告)号：US10666167B2

    公开(公告)日：2020-05-26

    申请号：US15837050

    申请日：2017-12-11

    Applicant: TDK CORPORATION

    Inventor： Masakazu Okunogi ,  Tatsuya Taki

    IPC: H02N2/04 ,  G02B7/02 ,  H02N2/02 ,  G02B7/04 ,  H02N2/00

    Abstract: A piezoelectric unit includes a piezoelectric element that expands and contracts in a first direction, a drive shaft connected with a first end surface of the piezoelectric element, a weight connected with a second end surface of the piezoelectric element, a protection member covering at least a part of the piezoelectric element, the drive shaft, and the weight, and a movable member engaged with the drive shaft. An inner wall surface of the protection member includes a weight position regulating portion that regulates a position of the weight, an element position regulating portion that regulates a position of the piezoelectric element, and a shaft position regulating portion that regulates a position of the drive shaft. An outer wall surface of the protection member has a movable member regulating portion that prevents the movable member from approaching the piezoelectric element.

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