Patents by Inventor Seiichiro NAMIKAWA

Seiichiro NAMIKAWA 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).

  • CRYSTAL ELEMENT, CRYSTAL DEVICE, ELECTRONIC EQUIPMENT, AND METHOD FOR MANUFACTURING CRYSTAL ELEMENT
    Publication number: 20230006124
    Abstract: A crystal element includes a vibration part, a holding part, an electrode part, and a recess that corresponds to a recess and/or protrusion. The vibration part has a pair of vibration-part main surfaces. The holding part is formed integrally with the vibration part to be connected to an outer edge of vibration part and has a pair of holding-part main surfaces and holding-part side surfaces. The electrode part is provided at the vibration-part main surfaces. The recess is located at the holding-part side surfaces.
    Type: Application
    Filed: November 25, 2020
    Publication date: January 5, 2023
    Applicant: KYOCERA Corporation
    Inventors: Koki HONDA, Seiichiro NAMIKAWA, Shogo NAKAGAWA