Patents by Inventor Tatsuo Takatsuki

Tatsuo Takatsuki 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).

  • Stepping motor for a timepiece
    Patent number: 3949251
    Abstract: This invention relates to a stepping motor for a timepiece. The supporting means for the bearing of the rotor shaft is fixed on the base plate and it is coaxial to the rotor shaft. It is used both as the supporting means for the bearing of the rotor shaft and positioning means for stators. Since delicate adjustment of stators is eliminated, it is easy to assemble and to keep high reliability.
    Type: Grant
    Filed: September 4, 1974
    Date of Patent: April 6, 1976
    Assignee: Kabushiki Kaisha Daini Seikosha
    Inventor: Tatsuo Takatsuki