Patents by Inventor Tetsuro Miyauchi

Tetsuro Miyauchi 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: 4617486
    Abstract: A miniature D.C. motor for a toy allows the arrangement of a brush base in a housing of the motor to be readily and positively positioned to improve the manufacturing efficiency of the motor and to ensure the actuation of the motor without trouble for a long period of time.The motor includes a housing, a brush base which holds brushes therein and which detachably fits in the housing, and a detachable connection member for permitting a connection between the housing and the brush base. A motor further includes a commutator having an outer end formed into a truncated conical shape, wherein the brushes each are provided with a contact section having a convexly curved surface, to allow the outer end of the commutator to be pressedly interposed between the convexly curved surfaces of the brushes.
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: October 14, 1986
    Assignee: S. M. C. Co., Ltd.
    Inventors: Tetsuro Miyauchi, Koji Niino