Patents by Inventor Mitugu Ura

Mitugu Ura 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: 5017900
    Abstract: A deflection yoke is constructed of a truncated conical hollow core, a pair of saddle-shaped horizontal deflection coils disposed inside the core, and a pair of toroidal vertical deflection coils wound on the core or a pair of vertical deflection coils wound in a saddle-like configuration and arranged in the vicinity of the core. A pair of cancellation coils opposing each other on an imaginary axis which passes through a central axis of the core in the direction of vertical deflection are arranged near front end sections of the vertical deflection coils, respectively. A central axis of each of said cancellation coils is inclined at a predetermined angle relative to the central axis of the core. The cancellation coils are connected with the horizontal deflection coils, respectively.
    Type: Grant
    Filed: February 9, 1990
    Date of Patent: May 21, 1991
    Assignee: Hitachi Mizusawa Electronics Co., Ltd.
    Inventors: Mitugu Ura, Yoshihiro Obara, Kazushi Takahashi