Patents by Inventor Yusuke Sai

Yusuke Sai 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).

  • Vibration plate and method for manufacturing vibration plate
    Patent number: 12279097
    Abstract: A diaphragm for an electroacoustic transducer includes a paper substrate containing cellulose fibers as a main component and is configured such that a first surface region with a predetermined thickness from a first surface of the paper substrate has a greater total amount of coloring particles than a second surface region with a predetermined thickness from a second surface of the paper substrate, the second surface being opposite to the first surface.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: April 15, 2025
    Assignee: FOSTER ELECTRIC COMPANY, LIMITED
    Inventors: Yusuke Sai, Hirotsugu Nakayama
  • VIBRATION PLATE AND METHOD FOR MANUACTURING VIBRATION PLATE
    Publication number: 20230156420
    Abstract: A diaphragm for an electroacoustic transducer includes a paper substrate containing cellulose fibers as a main component and is configured such that a first surface region with a predetermined thickness from a first surface of the paper substrate has a greater total amount of coloring particles than a second surface region with a predetermined thickness from a second surface of the paper substrate, the second surface being opposite to the first surface.
    Type: Application
    Filed: March 31, 2021
    Publication date: May 18, 2023
    Applicant: Foster Electric Company, Limited
    Inventors: Yusuke Sai, Hirotsugu Nakayama