Patents by Inventor Yoshifumi Nanasawa

Yoshifumi Nanasawa 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).

  • Machining unit application control apparatus and method employing data from several different operations
    Patent number: 5267141
    Abstract: In an application control apparatus or method for a machining unit such as an electric discharge machine, a plurality of methods of realizing desirable machining states such as those on machining know how techniques are independently described and stored as knowledge, and control is carried out according to the methods thus stored, whereby the machining unit is maintained in desirable state at all times.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: November 30, 1993
    Assignee: Mitsubishi Denki K.K.
    Inventors: Atsushi Morita, Yoshihito Imai, Akio Noda, Hisaichi Maruyama, Yoshifumi Nanasawa
  • Wire cut method of shaping workpiece by electric discharge
    Patent number: 4324970
    Abstract: A method of cutting a workpiece in a desired configuration by using an electric discharge andrelatively moving the workpiece and a wire electrode. When cutting a waste work part of the configuration, the wire electrode is stopped and shifted backwardly for a predetermined distance. The wire electrode is then shifted perpendicular to the work direction until it contacts the wall of the workpiece so as to measure the discharge gap.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: April 13, 1982
    Assignee: Mitsubushiki Denki Kabushiki Kaisha
    Inventors: Yoshifumi Nanasawa, Kazuhiko Kobayashi