Patents by Inventor Takuya MARUKO

Takuya MARUKO 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).

  • BONDED SUBSTRATE AND ITS MANUFACTURING METHOD
    Publication number: 20230117944
    Abstract: In a bonded substrate according to an embodiment, Euler angles (?1, ?1, ?1) of a first quartz-crystal substrate satisfy 0°??1?2°, 123°??1?128°, and 31°??1?44°, Euler angles (?2, ?2, ?2) of a second quartz-crystal substrate bonded over the first quartz-crystal substrate satisfy 83°??2?95°, 82°??2?95°, and 159°??2?161°, and a thickness of the second quartz-crystal substrate is 0.17 to 0.19 times a wavelength of a surface acoustic wave.
    Type: Application
    Filed: October 16, 2022
    Publication date: April 20, 2023
    Inventors: Kazuhito KISHIDA, Shoji KAKIO, Hiroaki YOKOTA, Takuya MARUKO, Kengo OGAWA