Patents by Inventor Munehisa Sugimoto

Munehisa Sugimoto 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).

  • Method of manufacturing ceramic vibration plate for speaker
    Patent number: 4758388
    Abstract: A dome shaped ceramic vibration plate for an audio speaker is manufactured by vacuum evaporation and deposition using a laser beam. The vibration plate is formed as a thin ceramic film which adheres to the surface of a mother model, which is thereafter dissolved or fused away.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: July 19, 1988
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Osamu Hamada, Megumi Omine, Munehisa Sugimoto