Patents by Inventor Yoshio Namatame, deceased

Yoshio Namatame, deceased 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).

  • Nozzle structure of electroslag welding machines
    Patent number: 4208564
    Abstract: A nozzle structure of electroslag welding machines for use in welding planks having heavier thicknesses compared to previously electroslag welded planks, and having as much as 800 mm thicknesses, in which the nozzle structure is formed of a plurality of bent pipes rigidly connected with each other to form a fan-shaped nozzle structure. A plurality of wires are continuously fed through each of the bent pipes into a weld gap formed by faces of planks to be welded.
    Type: Grant
    Filed: May 11, 1978
    Date of Patent: June 17, 1980
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Wada, Hisanao Kita, Tetsuo Okuni, Yoshio Namatame, deceased