Patents Assigned to Magnetfabrik Bonn G.m.b.H. vormals Gewerkschaft Windhorst
  • Method of making permanent magnets
    Patent number: 4063970
    Abstract: Method of making an anisotropic permanent magnetic body which has a (B.H).sub.max of at least 1.4 .times. 10.sup.6 Gauss . Oersted and a remanence of at least 2500 Gauss, utilizes magnetic powder particles having a coercivity .sub.J H.sub.C at least equal to the actual remanence B.sub.r of the finally prepared magnetic body, a remanence 4.pi.J.sub.r equal to about 1.3 to 1.6 of the actual remanence B.sub.r of the finally produced magnetic body and a fullness factor ##EQU1## which is at least 0.6.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: December 20, 1977
    Assignee: Magnetfabrik Bonn G.m.b.H. vormals Gewerkschaft Windhorst
    Inventor: Erich A. Steingroever