Patents Assigned to Setsu Anzai
  • Electric resistance type melting furnace
    Patent number: 6122308
    Abstract: The electric resistance type melting furnace according to the present invention prevents deformation and destruction of graphite electrodes under high temperature conditions. In a melting furnace 1, graphite electrodes 3a and 3b each having a rectangular cross-section and with outer surfaces covered with a molybdenum member M are arranged, and surfaces of the graphite electrodes are positioned opposite to each other.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: September 19, 2000
    Assignee: Setsu Anzai
    Inventor: Hideo Katayama
  • Method and apparatus for tuning polychlorinated biphenyl to harmless
    Patent number: 6061383
    Abstract: The present invention reduces generation of harmful substances through processing at lower cost for facilities and processing. According to the present invention, polychlorinated biphenyl and mixture of alumina oxide and silicon dioxide are mixed and emulsified in an ultrasonic emulsifier 2. The emulsified mixture is then charged into an electric resistance type melting furnace 5 and is melted at temperature of 1500.degree. C.-2000.degree. C. and is turned to glassy state.
    Type: Grant
    Filed: August 13, 1999
    Date of Patent: May 9, 2000
    Assignee: Setsu Anzai
    Inventor: Hideo Katayama