Patents by Inventor Tsuneki Shinokura

Tsuneki Shinokura 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).

  • Patent number: 5985000
    Abstract: To provide a Cu-Cr alloy electrode material, a mixture of Cu and cr materials at a predetermined ratio is heated until the mixture has been entirely melted, and the molten metal obtained is quenched to precipitate fine Cr particles in a Cu base. Since Cr is melted into Cu before quenching, and then Cr precipitates, Cr particles finer than those in the sintering or infiltration method can disperse in a Cu base. This invention prevents defects such as voids in the structure and the weakening of the fusion of Cu and Cr or failure of Cr to precipitate into the Cu base caused by oxide films on the surface of the Cr particles, thereby providing a fine alloy structure.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: November 16, 1999
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Hisaji Shinohara, Katsuro Shiozaki, Kazuro Shibata, Masayuki Furusawa, Shunichi Hatakeyama, Hiromi Iwai, Tatsuo Take, Tsuneki Shinokura