Patents by Inventor Kiyohito SHIBATA

Kiyohito SHIBATA 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).

  • Piezoelectric element, piezoelectric actuator and piezoelectric transformer
    Patent number: 10978635
    Abstract: A multilayer piezoelectric element that expands and contracts in response to an applied voltage includes external electrodes disposed on surfaces of an element body, internal electrodes connected to the external electrodes, and piezoelectric layers laminated alternately with the internal electrodes. An electrode material used for the internal electrodes or the external electrodes contains a base material composed of Ag and Pd in a weight ratio of 60/40 to 85/15 and Pt in an amount of 0.1% to 10% by weight based on the weight of the base material. Also included is a piezoelectric actuator including the piezoelectric element and a piezoelectric transformer including the piezoelectric element.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: April 13, 2021
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kiyohito Shibata, Norifumi Iwaki, Toru Ezaki, Toshikatsu Nomura
  • PIEZOELECTRIC ELEMENT, PIEZOELECTRIC ACTUATOR AND PIEZOELECTRIC TRANSFORMER
    Publication number: 20180301617
    Abstract: A multilayer piezoelectric element that expands and contracts in response to an applied voltage includes external electrodes disposed on surfaces of an element body, internal electrodes connected to the external electrodes, and piezoelectric layers laminated alternately with the internal electrodes. An electrode material used for the internal electrodes or the external electrodes contains a base material composed of Ag and Pd in a weight ratio of 60/40 to 85/15 and Pt in an amount of 0.1% to 10% by weight based on the weight of the base material. Also included is a piezoelectric actuator including the piezoelectric element and a piezoelectric transformer including the piezoelectric element.
    Type: Application
    Filed: October 7, 2016
    Publication date: October 18, 2018
    Inventors: Kiyohito SHIBATA, Norifumi IWAKI, Toru EZAKI, Toshikatsu NOMURA