Patents by Inventor Mitsuki SUGEOI

Mitsuki SUGEOI 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).

  • Ferritic stainless steel and method for manufacturing same, ferritic stainless steel sheet and method for manufacturing same, and fuel cell member
    Patent number: 11667986
    Abstract: Ferritic stainless steel is characterized by including, by mass %: Cr: 12.0% to 16.0%; C: 0.020% or less; Si: 2.50% or less; Mn: 1.00% or less; P: 0.050% or less; S: 0.0030% or less; Al: 2.50% or less; N: 0.030% or less; Nb: 0.001% to 1.00%; one or more of B: 0.0200% or less, Sn: 0.20% or less, Ga: 0.0200% or less, Mg: 0.0200% or less, and Ca: 0.0100% or less; and a balance consisting of Fe and impurities, in which Expression (1) is satisfied. 10(B+Ga)+Sn+Mg+Ca>0.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: June 6, 2023
    Assignee: NIPPON STEEL STAINLESS STEEL CORPORATION
    Inventors: Masaharu Hatano, Mitsuki Sugeoi, Takumi Nishimoto
  • FERRITIC STAINLESS STEEL AND METHOD FOR MANUFACTURING SAME, FERRITIC STAINLESS STEEL SHEET AND METHOD FOR MANUFACTURING SAME, AND FUEL CELL MEMBER
    Publication number: 20210025022
    Abstract: Ferritic stainless steel is characterized by including, by mass %: Cr: 12.0% to 16.0%; C: 0.020% or less; Si: 2.50% or less; Mn: 1.00% or less; P: 0.050% or less; S: 0.0030% or less; Al: 2.50% or less; N: 0.030% or less; Nb: 0.001% to 1.00%; one or more of B: 0.0200% or less, Sn: 0.20% or less, Ga: 0.0200% or less, Mg: 0.0200% or less, and Ca: 0.0100% or less; and a balance consisting of Fe and impurities, in which Expression (1) is satisfied. 10(B+Ga)+Sn+Mg+Ca >0.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 28, 2021
    Applicant: NIPPON STEEL STAINLESS STEEL CORPORATION
    Inventors: Masaharu HATANO, Mitsuki SUGEOI, Takumi NISHIMOTO