Patents by Inventor Chuichi Yoshitake

Chuichi Yoshitake 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).

  • Control method of a DC motor
    Patent number: 3953774
    Abstract: A control method of a DC motor is described which comprises a digital control method and an analogue control method, wherein a rotor of the DC motor rotates with high speed under the digital control method until the rotating angle of the rotor comes close to a predetermined rotating angle and then the rotor rotates with high accuracy under the analogue control method to the predetermined rotating angle.
    Type: Grant
    Filed: November 30, 1973
    Date of Patent: April 27, 1976
    Assignee: Fujitsu Ltd.
    Inventors: Tadasu Sato, Chuichi Yoshitake