Patents by Inventor Hiroshi Nougata

Hiroshi Nougata 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: 4596913
    Abstract: An impeder for use in an apparatus for resistance tube welding by which a strip-shaped skelp continuously formed into a tubular or spirally tubular shape having spaced opposed edge portions defining a gap therebetween has the edge portions heated and pressed together for being welded. The impeder has a generally tubular casing and a core within the casing consisting of a plurality of laminated bodies each consisting of a plurality of substantially flat planar foils of metallic magnetic material, the core, when viewed in cross-section traverse to the central longitudinal axis of the casing, having the transverse cross-sections of the laminated bodies on parts of at least one circle concentric with the longitudinal axis of the casing and having the planes of the foils extending substantially radially outwardly from the longitudinal axis.
    Type: Grant
    Filed: April 4, 1985
    Date of Patent: June 24, 1986
    Assignee: Nippon Steel Corporation
    Inventors: Hiroshi Takechi, Mitsuo Yoshizawa, Hiroshi Nougata, Hirohisa Ichihara