Patents by Inventor Shugo Kubo

Shugo Kubo 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).

  • Production of aluminum-aluminum oxide dispersion composite conductive material and product thereof
    Patent number: 3982906
    Abstract: Manufacture of an aluminum-aluminum oxide dispersion composite conductive material (hereinafter referred to as Al-Al.sub.2 O.sub.3 dispersion composite conductive material) by compacting aluminum powder prepared by the atomization method, the particles having an oxide film with a thickness of about 100 A, and heat-treating the resultant compacted material in a vacuum or in a reducing gas or inert gas atmosphere at a temperature of 660.degree. to 700.degree.C. The composite conductive material thus obtained has a structure, in which the aluminum oxide is uniformly dispersed in aluminum, and it is capable of high speed wire drawing. Its electrical conductivity is 56.5 to 63.2 percent IACS (International Annealed Copper Standard), and its aluminum oxide content is 0.01 to 0.2 weight percent.
    Type: Grant
    Filed: November 14, 1973
    Date of Patent: September 28, 1976
    Assignee: Nippon Telegraph and Telephone Public Corporation
    Inventors: Masataka Hirai, Toshio Takahashi, Kishio Arita, Goro Yamauchi, Shugo Kubo