Patents by Inventor Norimitsu Hirose

Norimitsu Hirose 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).

  • High strength low alloyed sintered steel
    Patent number: 8702835
    Abstract: A water-atomized iron-based steel powder is provided which comprises by weight-%: 0.45-1.50 Ni, 0.30-0.55 Mo, less than 0.3 Mn, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, less than 0.5 of unavoidable impurities, and the balance being iron, and where Ni and Mo have been alloyed by a diffusion alloying process.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: April 22, 2014
    Assignee: Hoganas AB (Publ)
    Inventors: Yang Yu, Norimitsu Hirose
  • HIGH STRENGTH LOW ALLOYED SINTERED STEEL
    Publication number: 20120082587
    Abstract: A water-atomised iron-based steel powder is provided which comprises by weight-%: 0.45-1.50 Ni, 0.30-0.55 Mo, less than 0.3 Mn, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, less than 0.5 of unavoidable impurities, and the balance being iron, and where Ni and Mo have been alloyed by a diffusion alloying process.
    Type: Application
    Filed: May 21, 2010
    Publication date: April 5, 2012
    Applicant: HOGANAS AB (PUBL)
    Inventors: Yang Yu, Norimitsu Hirose