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.

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.

公开(公告)号：US10277967B2

公开(公告)日：2019-04-30

申请号：US15234612

申请日：2016-08-11

Applicant: TDK Corporation

Inventor： Akira Satoh ,  Kaoru Kijima

IPC: H04R1/00 ,  H04R1/06 ,  G10K9/122 ,  G10K9/22 ,  H04R17/00

Abstract: A piezoelectric sounding body includes: a piezoelectric vibrating plate; a case housing the piezoelectric vibrating plate; a first conductive terminal electrically connected to one electrode in the piezoelectric vibrating plate; and a second conductive terminal electrically connected to the other electrode in the piezoelectric vibrating plate. At least one of the first conductive terminal and the second conductive terminal includes: a first terminal portion arranged inside the case; a second terminal portion arranged on the outside of the case; and a third terminal portion arranged in a terminal insertion hole formed in the case to connect the first terminal portion and the second terminal portion. The first terminal portion includes a sandwiching portion configured to sandwich part of the case between the first terminal portion and the second terminal portion.

公开(公告)号：US11648586B2

公开(公告)日：2023-05-16

申请号：US17004414

申请日：2020-08-27

Applicant: TDK CORPORATION

Inventor： Kazuki Saito ,  Kaoru Kijima

IPC: B06B1/06 ,  G06F3/01

CPC classification number: B06B1/0651 ,  G06F3/016

Abstract: A vibration device includes a piezoelectric element and a vibration member. The vibration device is arranged to be supported on a base. The vibration member includes a first main surface opposing the base and a second main surface opposing the first main surface. The piezoelectric element is disposed on the second main surface. The first main surface of the vibration member is provided with a protrusion contacting the base and defining a vibration space on the first main surface. The protrusion is positioned outside the piezoelectric element to surround the piezoelectric element when the vibration member is seen through from a direction orthogonal to the first main surface.

公开(公告)号：US11581825B2

公开(公告)日：2023-02-14

申请号：US16871410

申请日：2020-05-11

Applicant: TDK Corporation

Inventor： Akira Satoh ,  Yoshikazu Shimura ,  Kaoru Kijima

IPC: H02N2/00 ,  B06B1/06

Abstract: An acoustic device includes a piezoelectric element, an attachment member to which the piezoelectric element is attached, and a spacer. The piezoelectric element includes first and second principal surfaces opposing each other. The attachment opposes the first principal surface. The spacer is disposed between the piezoelectric element and the attachment member in such a manner as to form an acoustic space between the piezoelectric element and the attachment member. The spacer includes an adhesive layer including a principal surface in contact with the first principal surface and a principal surface in contact with the attachment member.

公开(公告)号：USD848959S1

公开(公告)日：2019-05-21

申请号：US29613595

申请日：2017-08-11

Applicant: TDK CORPORATION

Designer： Kaoru Kijima ,  Tatsuya Taki

公开(公告)号：USD804347S1

公开(公告)日：2017-12-05

申请号：US29557332

申请日：2016-03-08

Applicant: TDK Corporation

Designer： Akira Satoh ,  Kaoru Kijima