Patents by Inventor Hironobu Kuwano

Hironobu Kuwano 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).

  • Servomotor velocity control apparatus
    Patent number: 5006770
    Abstract: A servomotor velocity control apparatus constructs a digital servo system including a compensating circuit (2) having a variable gain. The integration gain of the compensating circuit (2) is set and controlled by a gain setting unit (5) so as to be inversely proportional to estimated servomotor velocity computed from a velocity signal fed back in discrete fashion. It is possible to perform high-speed positioning based on an actual velocity signal which prevails when velocity is low.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: April 9, 1991
    Assignee: Fanuc Ltd
    Inventors: Keiji Sakamoto, Hironobu Kuwano