Patents by Inventor Masahide Uragoh

Masahide Uragoh 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).

  • Method of manufacturing grain-oriented electrical steel sheet
    Patent number: 8778095
    Abstract: In a method of manufacturing a grain-oriented electrical steel sheet including a nitriding treatment (step S7) and adopting so-called “low-temperature slab heating”, the finish temperature of finish rolling in hot rolling (step S2) is set to 950° C. or below, the cooling is started within 2 seconds after completion of the finish rolling, and a steel strip is coiled at 700° C. or below. The cooling rate over the duration from the end of finish rolling to the start of coiling is set to 10° C./sec or above. In annealing (step S3) of the hot-rolled steel strip, the heating rate in the temperature range from 800° C. to 1000° C. is set to 5° C./sec or above.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 15, 2014
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Isao Iwanaga, Yoshiyuki Ushigami, Norikazu Fujii, Norihiro Yamamoto, Masahide Uragoh, Kenichi Murakami, Chie Hama
  • METHOD OF MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
    Publication number: 20130061985
    Abstract: In a method of manufacturing a grain-oriented electrical steel sheet including a nitriding treatment (step S7) and adopting so-called “low-temperature slab heating”, the finish temperature of finish rolling in hot rolling (step S2) is set to 950° C. or below, the cooling is started within 2 seconds after completion of the finish rolling, and a steel strip is coiled at 700° C. or below. The cooling rate over the duration from the end of finish rolling to the start of coiling is set to 10° C./sec or above. In annealing (step S3) of the hot-rolled steel strip, the heating rate in the temperature range from 800° C. to 1000° C. is set to 5° C./sec or above.
    Type: Application
    Filed: May 19, 2011
    Publication date: March 14, 2013
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Isao Iwanaga, Yoshiyuki Ushigami, Norikazu Fujii, Norihiro Yamamoto, Masahide Uragoh, Kenichi Murakami, Chie Hama