Patents Assigned to ERD Corporation
  • Patent number: 5435859
    Abstract: A method of producing a rare earth anisotropic bond magnet comprising the steps of:melting an aloy composed of 10-30 atom % of R (wherein R designates at least one rare earth element including yttrium), 2-28 atom % of boron and 65-82 atom % of M (wherein M designates at least one of iron, cobalt and nickel) and rapidly cooling the melted alloy to produce powder material,subjecting the material to stamping at the temperature of 300.degree.-900.degree. C. in an inert gas atmosphere to pulverize and press the material to a scaly shape andcooling the pulverized material so that a magnetic anisotropy is produced in the vertical direction relative to the pressed surface.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: July 25, 1995
    Assignee: ERD Corporation
    Inventors: Michihiro Torii, Masanao Okuda, Yoshikazu Ikeda