Patents by Inventor Yoshizo Suga

Yoshizo Suga 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).

  • Direct current electric arc furnace
    Patent number: 5138630
    Abstract: A direct current electric arc furnace comprises a main body, a moving electrode attached at the center of a roof of the furnace which generates an arc under the moving electrode, a bottom electrode attached at the center of the bottom, conductors which are connected to the bottom electrode, so that the deviation of the arc caused by a magnetic field originated at the outside of the main body is cancelled by another magnetic field caused by the conductors when electric currents are fed to the conductors and means of feeding direct currents to the conductors.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: August 11, 1992
    Assignee: NKK Corporation
    Inventor: Yoshizo Suga