Patents by Inventor Hideya Furusawa

Hideya Furusawa 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 sheet for brake disc, and brake disc
    Patent number: 8607941
    Abstract: A steel sheet for a brake disc contains, on a mass percent basis, 0.02% or more and less than 0.10% C, 0.6% or less Si, more than 0.5% and 2.0% or less Mn, 0.06% or less P, 0.01% or less S, 0.05% or less Al, 11.0% to 13.5% Cr, 0.01% to 0.30% Ni, 0.10% to 0.60% Nb, 0.03% or more and less than 0.10% N, more than 0.0010% and 0.0060% or less B, and the balance being Fe and incidental impurities, and the steel sheet after quenching has a hardness of 32 HRC to 40 HRC on a Rockwell hardness scale C (HRC).
    Type: Grant
    Filed: May 31, 2010
    Date of Patent: December 17, 2013
    Assignee: JFE Steel Corporation
    Inventors: Katsuhisa Yamauchi, Mitsuyuki Fujisawa, Yasushi Kato, Hiroki Ota, Hideya Furusawa, Takumi Ujiro
  • STEEL SHEET FOR BRAKE DISC, AND BRAKE DISC
    Publication number: 20120125724
    Abstract: A steel sheet for a brake disc contains, on a mass percent basis, 0.02% or more and less than 0.10% C, 0.6% or less Si, more than 0.5% and 2.0% or less Mn, 0.06% or less P, 0.01% or less S, 0.05% or less Al, 11.0% to 13.5% Cr, 0.01% to 0.30% Ni, 0.10% to 0.60% Nb, 0.03% or more and less than 0.10% N, more than 0.0010% and 0.0060% or less B, and the balance being Fe and incidental impurities, and the steel sheet after quenching has a hardness of 32 HRC to 40 HRC on a Rockwell hardness scale C (HRC).
    Type: Application
    Filed: May 31, 2010
    Publication date: May 24, 2012
    Applicant: JFE STEEL CORPORATION
    Inventors: Katsuhisa Yamauchi, Mitsuyuki Fujisawa, Yasushi Kato, Hiroki Ota, Hideya Furusawa, Takumi Ujiro