Patents by Inventor Masao Todoriki

Masao Todoriki 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).

  • Graphite electrode having joints
    Patent number: 5870424
    Abstract: In order to prevent the rupturing of a graphite electrode comprising electrode sections joined with one another by a socket and a nipple, electrical insulating material is applied on the joined surfaces to decrease the current across the nipple.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: February 9, 1999
    Assignee: Showa Denko Kabushikikaisha
    Inventors: Masao Todoriki, Takayuki Fukai, Yoshishige Sekiguchi, Osamu Kanazawa, Hiroyuki Yamashita