Patents by Inventor Junpei KIKUCHI

Junpei KIKUCHI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Multilayer piezoelectric element and vibrating device
    Patent number: 11189777
    Abstract: A multilayer piezoelectric element includes a piezoelectric element body, a first internal electrode and a second internal electrode, a plurality of first connecting conductors, a plurality of second connecting conductors, and an external member. The piezoelectric element body is formed by laminating a plurality of piezoelectric element body layer. The piezoelectric element body includes a first main surface and a second main surface, and a side surface. The plurality of first connecting conductors are connected to the first internal electrode. The plurality of second connecting conductors are connected to the second internal electrode. The external member is conductive and is bonded to the first main surface in such a way as to cover the first end portions of the plurality of first connecting conductors. The external member is electrically connected to the plurality of first connecting conductors.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: November 30, 2021
    Assignee: TDK CORPORATION
    Inventors: Yoshiki Ohta, Tetsuyuki Taniguchi, Hideya Sakamoto, Kazushi Tachimoto, Junpei Kikuchi, Akihiro Takeda
  • MULTILAYER PIEZOELECTRIC ELEMENT AND VIBRATING DEVICE
    Publication number: 20190088851
    Abstract: A multilayer piezoelectric element includes a piezoelectric element body, a first internal electrode and a second internal electrode, a plurality of first connecting conductors, a plurality of second connecting conductors, and an external member. The piezoelectric element body is formed by laminating a plurality of piezoelectric element body layer. The piezoelectric element body includes a first main surface and a second main surface, and a side surface. The plurality of first connecting conductors are connected to the first internal electrode. The plurality of second connecting conductors are connected to the second internal electrode. The external member is conductive and is bonded to the first main surface in such a way as to cover the first end portions of the plurality of first connecting conductors. The external member is electrically connected to the plurality of first connecting conductors.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 21, 2019
    Applicant: TDK CORPORATION
    Inventors: Yoshiki OHTA, Tetsuyuki TANIGUCHI, Hideya SAKAMOTO, Kazushi TACHIMOTO, Junpei KIKUCHI, Akihiro TAKEDA