Patents by Inventor Noritsugu Suzuki

Noritsugu Suzuki 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).

  • Process for producing steel product and production facility therefor
    Patent number: 7857919
    Abstract: The present invention provides a method of manufacturing a steel product, comprising the step of heat treating a steel product having been subjected to quenching or accelerated cooling on a hot rolling line after hot rolling to pass the steel product through a plurality of induction heating apparatuses, which are installed on the hot rolling line, three times or more. The method of the present invention makes it possible to uniformly heat treat the steel product with high productivity.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: December 28, 2010
    Assignee: JFE Steel Corporation
    Inventors: Yoshitsugu Iijima, Hiroshi Mizuno, Hiroshi Sekine, Noritsugu Suzuki, Masatoshi Sugioka
  • Process for producing steel product and production facility therefor
    Publication number: 20050252587
    Abstract: The present invention provides a method of manufacturing a steel product, comprising the step of heat treating a steel product having been subjected to quenching or accelerated cooling on a hot rolling line after hot rolling to pass the steel product through a plurality of induction heating apparatuses, which are installed on the hot rolling line, three times or more. The method of the present invention makes it possible to uniformly heat treat the steel product with high productivity.
    Type: Application
    Filed: August 5, 2003
    Publication date: November 17, 2005
    Inventors: Yoshitsugu Iijima, Hiroshi Mizuno, Hiroshi Sekine, Noritsugu Suzuki, Masatoshi Sugioka
  • Heat treatment apparatus, heat treatment method, medium on which heat treatment program is recorded, and steel product
    Patent number: 6891139
    Abstract: A heat treatment apparatus includes a plurality of induction heating devices which heat a steel product, a correctional device which corrects the steel product, a computing device which computes supply predetermined electric power which is supplied to the induction heating device, on the basis of a size of the steel product, a conveying speed of the steel product, a heating target temperature of the steel product, and a predetermined temperature of the steel product at the previous stage of the induction heating devices, and a power supply unit which supplies the supply predetermined electric power computed by the computing device to the induction heating devices, and the computing device which computes electric power for uniform heating processing on the steel product or electric power for surface layer heating processing on the steel product.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: May 10, 2005
    Assignee: JFE Steel Corporation
    Inventors: Yoshitsugu Iijima, Hiroshi Mizuno, Hiroshi Sekine, Noritsugu Suzuki, Kiyoshi Nakano, Masatoshi Sugioka
  • Heat treatment apparatus, heat treatment method, medium on which heat treatment program is recorded, and steel product
    Publication number: 20040164071
    Abstract: A heat treatment apparatus includes a plurality of induction heating devices which heat a steel product, a correctional device which corrects the steel product, a computing device which computes supply predetermined electric power which is supplied to the induction heating device, on the basis of a size of the steel product, a conveying speed of the steel product, a heating target temperature of the steel product, and a predetermined temperature of the steel product at the previous stage of the induction heating devices, and a power supply unit which supplies the supply predetermined electric power computed by the computing device to the induction heating devices, and the computing device which computes electric power for uniform heating processing on the steel product or electric power for surface layer heating processing on the steel product.
    Type: Application
    Filed: February 25, 2004
    Publication date: August 26, 2004
    Applicant: JFE Steel Corporation
    Inventors: Yoshitsugu Iijima, Hiroshi Mizuno, Hiroshi Sekine, Noritsugu Suzuki, Kiyoshi Nakano, Masatoshi Sugioka