Patents by Inventor Daichi HAMADA

Daichi HAMADA 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).

  • Non-oriented electrical steel sheet and method for manufacturing non-oriented electrical steel sheet
    Patent number: 11970750
    Abstract: There is provided a non-oriented electrical steel sheet in which, in a cross section of a base material in a sheet thickness direction, the number density N2-5 of precipitates with an equivalent circle diameter of 50 to 500 nm present in a range of 2.0 to 5.0 ?m from the surface of the base material in the sheet thickness direction is 0.30 pieces/?m2 or less, and the relationship between the number density N2-5 and the number density N0-2 of precipitates with an equivalent circle diameter of 50 to 500 nm present in a range from the surface of the base material to 2.0 ?m satisfies Formula (1): (N2-5)/(N0-2)?0.5??Formula (1).
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: April 30, 2024
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Nobusato Morishige, Takeru Ichie, Masato Yasuda, Masahide Urago, Fuminobu Murakami, Daichi Hamada, Atsushi Shibayama, Kazumi Mizukami, Daisuke Itabashi
  • NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET
    Publication number: 20230392225
    Abstract: There is provided a non-oriented electrical steel sheet in which, in a cross section of a base material in a sheet thickness direction, the number density N2-5 of precipitates with an equivalent circle diameter of 50 to 500 nm present in a range of 2.0 to 5.0 ?m from the surface of the base material in the sheet thickness direction is 0.30 pieces/?m2 or less, and the relationship between the number density N2-5 and the number density N0-2 of precipitates with an equivalent circle diameter of 50 to 500 nm present in a range from the surface of the base material to 2.0 ?m satisfies Formula (1): (N2-5)/(N0-2)?0.5??Formula (1).
    Type: Application
    Filed: March 31, 2022
    Publication date: December 7, 2023
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Nobusato MORISHIGE, Takeru ICHIE, Masato YASUDA, Masahide URAGO, Fuminobu MURAKAMI, Daichi HAMADA, Atsushi SHIBAYAMA, Kazumi MIZUKAMI, Daisuke ITABASHI