Patents by Inventor Hirotoyo NAKASHIMA

Hirotoyo NAKASHIMA 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).

  • Publication number: 20220002854
    Abstract: A titanium aluminide alloy material for hot forging has a chemical composition including, by atom, aluminum of 38.0% or greater and 39.9% or less, niobium of 3.0% or greater and 5.0% or less, vanadium of 3.0% or greater and 4.0% or less, carbon of 0.05% or greater and 0.15% or less, and titanium and an inevitable impurity as a residue.
    Type: Application
    Filed: September 15, 2021
    Publication date: January 6, 2022
    Applicants: IHI Corporation, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Keiji KUBUSHIRO, Yutaro OTA, Shin USUI, Masao TAKEYAMA, Hirotoyo NAKASHIMA
  • Publication number: 20210404042
    Abstract: A titanium aluminide alloy material for hot forging has a chemical composition including, by atom, aluminum of 43.0% or greater and 45.0% or less, niobium of 4.0% or greater and 6.0% or less, chromium of 1.5% or greater and 3.5% or less, and titanium and an inevitable impurity as a residue.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Applicants: IHI Corporation, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Keiji KUBUSHIRO, Yutaro OTA, Satoshi TAKAHASHI, Masao TAKEYAMA, Hirotoyo NAKASHIMA, Ryosuke YAMAGATA