Patents Assigned to Mitsubishi Mining
  • Dielectric ceramic composition
    Patent number: 4522927
    Abstract: A dielectric ceramic composition having a composition represented by the formulaxBaO-yNd.sub.2 O.sub.3 -z(Ti.sub.1-m Zr.sub.m)O.sub.2wherein x+y+z=1.000<m.ltoreq.0.25and x, y, and z are in the molar ratio region surrounded by the points a, b, c, and d which are represented by the following x-y-z coordinates:______________________________________ x y z ______________________________________ a 0.15 0.12 0.73 b 0.15 0.18 0.67 c 0.05 0.18 0.77 d 0.05 0.12 0.
    Type: Grant
    Filed: October 26, 1983
    Date of Patent: June 11, 1985
    Assignees: Mitsubishi Mining, Cement Company Ltd.
    Inventors: Masao Kashima, Noboru Tomuro