Patents by Inventor Kazuya MISHIO

Kazuya MISHIO 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).

  • Steel and method of manufacturing the same
    Patent number: 10774405
    Abstract: Steel has a chemical composition that contains 0.050% to 0.40% of C, 0.50% to 3.0% of Si, 3.0% to 8.0% of Mn, and 0.001% to 3.0% of sol. Al, by mass %, and has a metallographic structure that contains 10% to 40% of austenite in terms of % by volume. The average concentration of C in austenite is 0.30% by 0.60%, by mass %, structure uniformity, which is represented by a value obtained by subtracting the minimum value from the maximum value of Vickers hardness that is measured, in the metallographic structure is 30 Hv or less, and the tensile strength is 900 MPa to 1800 MPa.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: September 15, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Koutarou Hayashi, Akira Seki, Kazuya Mishio, Shuhei Shimokawa
  • STEEL AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20160333448
    Abstract: Steel has a chemical composition that contains 0.050% to 0.40% of C, 0.50% to 3.0% of Si, 3.0% to 8.0% of Mn, and 0.001% to 3.0% of sol. Al, by mass %, and has a metallographic structure that contains 10% to 40% of austenite in terms of % by volume. The average concentration of C in austenite is 0.30% by 0.60%, by mass %, structure uniformity, which is represented by a value obtained by subtracting the minimum value from the maximum value of Vickers hardness that is measured, in the metallographic structure is 30 Hv or less, and the tensile strength is 900 MPa to 1800 MPa.
    Type: Application
    Filed: January 6, 2014
    Publication date: November 17, 2016
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Koutarou HAYASHI, Akira SEKI, Kazuya MISHIO, Shuhei SHIMOKAWA