Patents by Inventor Juuji HIRAYAMA

Juuji HIRAYAMA 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).

  • Mixed powder for powder metallurgy
    Patent number: 10632532
    Abstract: A mixed powder for powder metallurgy having excellent green compact strength and ejectability is provided. The mixed powder for powder metallurgy includes an iron-based powder; and a copolymerized polyamide, in an amount of 0.3 to 2.0 parts by mass per 100 parts by mass of the iron-based powder, having a melting point of 80° C. to 116° C.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: April 28, 2020
    Assignee: JFE STEEL CORPORATION
    Inventors: Shigeru Unami, Juuji Hirayama
  • Mixed powder for powder metallurgy
    Patent number: 10596625
    Abstract: A mixed powder for powder metallurgy having excellent green compact strength and ejectability is provided. The mixed powder for powder metallurgy includes an iron-based powder; and a copolymerized polyamide, in an amount of 0.3 to 2.0 parts by mass per 100 parts by mass of the iron-based powder, having a melting point of 80° C. to 116° C.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: March 24, 2020
    Assignee: JFE STEEL CORPORATION
    Inventors: Shigeru Unami, Juuji Hirayama
  • MIXED POWDER FOR POWDER METALLURGY
    Publication number: 20190022749
    Abstract: A mixed powder for powder metallurgy having excellent green compact strength and ejectability is provided. The mixed powder for powder metallurgy includes an iron-based powder; and a copolymerized polyamide, in an amount of 0.3 to 2.0 parts by mass per 100 parts by mass of the iron-based powder, having a melting point of 80° C. to 120° C.
    Type: Application
    Filed: November 25, 2016
    Publication date: January 24, 2019
    Applicant: JFE STEEL CORPORATION
    Inventors: Shigeru UNAMI, Juuji HIRAYAMA