Patents by Inventor Yusuke TABUCHI

Yusuke TABUCHI 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 and method for manufacturing piezoelectric element
    Patent number: 11189776
    Abstract: This piezoelectric element includes a lower electrode formed on a substrate, a piezoelectric layer formed on the lower electrode, and an upper electrode formed on the piezoelectric layer. The upper electrode includes a first upper electrode layer made of a metal oxide including an amorphous portion at least at a boundary with the piezoelectric layer and a second upper electrode layer formed on the first upper electrode layer.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: November 30, 2021
    Assignee: Sumitomo Precision Products Co., Ltd.
    Inventors: Yusuke Tabuchi, Gen Matsuoka, Takashi Ikeda
  • Piezoelectric Element and Method for Manufacturing Piezoelectric Element
    Publication number: 20180287045
    Abstract: This piezoelectric element includes a lower electrode formed on a substrate, a piezoelectric layer formed on the lower electrode, and an upper electrode formed on the piezoelectric layer. The upper electrode includes a first upper electrode layer made of a metal oxide including an amorphous portion at least at a boundary with the piezoelectric layer and a second upper electrode layer formed on the first upper electrode layer.
    Type: Application
    Filed: August 31, 2016
    Publication date: October 4, 2018
    Inventors: Yusuke TABUCHI, Gen MATSUOKA, Takashi IKEDA