Patents Assigned to Kabushiki Kaisha I.P.D.
  • Ceramic heating plate
    Patent number: 4990747
    Abstract: A ceramic heating plate which comprises a planar body including a ceramic substratum covered with a far-infrared ceramic layer on the top surface; a heating sheet attached to the back surface of the substratum, the heating sheet including a pair of lead terminals through which the heating plate is connected to a source of power; and wherein the ceramic layer contains a single layer of ceramic particles exposed above the surface thereof so that far-infrared rays are radiated outside directly therefrom.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: February 5, 1991
    Assignee: Kabushiki Kaisha I.P.D.
    Inventor: Jiro Kondo