Patents by Inventor Noboru Tomuro

Noboru Tomuro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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
  • Ceramic capacitor
    Patent number: 4447853
    Abstract: There is disclosed a ceramic capacitor comprising a polycrystalline ceramic dielectric material disposed between electrodes of conductive material with the polycrystalline ceramic dielectric material having a thickness not more than 30 .mu.m and a particle size not more than one fifth of the thickness of the dielectric material.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: May 8, 1984
    Assignee: Mitsubishi Mining & Cement Company, Ltd.
    Inventors: Noboru Tomuro, Isao Ishiguchi, Shinjiro Tsujikawa, Masao Kashima, Yasuo Miyashita