Patents by Inventor Shuzo Matsumoto

Shuzo Matsumoto 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).

  • Deflection yoke device for use in color television receiver sets
    Patent number: 4096462
    Abstract: The present invention relates to a deflection yoke device which is preferably combined with an in-line type color picture tube having electron guns aligned horizontally. The distribution of magnetic fields is determined in the horizontal direction such that a sharp or strong barrel magnetic field is localized on the side of the neck portion whereas an extremely sharp pincushion magnetic field is localized on the side of the funnel portion and at the same time, an intensely sharp pincushion magnetic field is distributed between the funnel portion and the neck portion. The central electron beam is deflected more at a greater angle than side electron beams so as to land outside the side electron beams.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: June 20, 1978
    Assignee: Hitachi, Ltd.
    Inventors: Mitsuharu Akatsu, Ichiro Niitsu, Masao Obara, Ryoichi Hirota, Shuzo Matsumoto, Takesuke Maruyama