Patents by Inventor Shunichi Hiramuki

Shunichi Hiramuki 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).

  • Patent number: 7881490
    Abstract: A speaker device includes a magnetic circuit, a vibration system, a frame and a terminal. The frame is formed into a frame shape, and an inner wall thereof holds the magnetic circuit. Particularly, the frame has an opening for ventilation, which makes a rear surface positioned on a side opposite to a sound output direction and a side surface curved to a direction of the sound output direction from a peripheral end of the rear surface communicate with each other, and the terminal covers the opening on the rear surface of the frame. Therefore, the opening is provided on the side surface of the frame, and ventilation performance of the speaker device is ensured. In addition, by such amount that no opening is provided on the rear surface of the frame, a setting space of the terminal can be enlarged on the rear surface of the frame.
    Type: Grant
    Filed: October 11, 2006
    Date of Patent: February 1, 2011
    Assignees: Pioneer Corporation, Tohoku Pioneer Corporation
    Inventors: Satoshi Chiba, Shunichi Hiramuki
  • Publication number: 20070081692
    Abstract: A speaker device includes a magnetic circuit, a vibration system, a frame and a terminal. The frame is formed into a frame shape, and an inner wall thereof holds the magnetic circuit. Particularly, the frame has an opening for ventilation, which makes a rear surface positioned on a side opposite to a sound output direction and a side surface curved to a direction of the sound output direction from a peripheral end of the rear surface communicate with each other, and the terminal covers the opening on the rear surface of the frame. Therefore, the opening is provided on the side surface of the frame, and ventilation performance of the speaker device is ensured. In addition, by such amount that no opening is provided on the rear surface of the frame, a setting space of the terminal can be enlarged on the rear surface of the frame.
    Type: Application
    Filed: October 11, 2006
    Publication date: April 12, 2007
    Applicants: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION
    Inventors: Satoshi Chiba, Shunichi Hiramuki