Patents by Inventor Hidenoir Takagi

Hidenoir Takagi 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).

  • Superconductive material
    Patent number: 5360786
    Abstract: The disclosed superconductive material has a characteristic in accordance with which electrical resistance disappears at a temperature of at least more than the boiling point of 20.3.degree. K. (-252.7.degree. C.) of liquid hydrogen and relates to La-Ba-Cu-O series superconductive material.Said superconductive material consists essentially of a composition having the formula(La.sub.1-x M.sub.x).sub.2 CuO.sub.4-x/2wherein, M=Ba or Ba(Sr, Ca) and x=0.04.about.0.20 as a main body, wherein the material has a K.sub.2 NiF.sub.4 crystal structure.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: November 1, 1994
    Assignee: University of Tokyo
    Inventors: Shoji Tanaka, Koichi Kitazawa, Shin-ichi Uchida, Hidenoir Takagi