Patents by Inventor Tadasu Abumiya

Tadasu Abumiya 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).

  • Titanium alloy and production thereof
    Patent number: 6632304
    Abstract: A near-&bgr; or &bgr; titanium alloy having high strength, high ductility, and high toughness which is capable of coil rolling at a high temperature and recoiling for high productivity, and a process for producing said titanium alloy. The titanium alloy contains not more than 1.0% (excluding 0%) of Si alone or in combination with not more than 10% of Sn. The process comprises heating a &bgr; alloy or near-&bgr; alloy containing not more than 1.0% (excluding 0%) of Si alone or in combination with not more than 10% of Sn and subjecting said alloy to plastic deformation while keeping silicides solved in it at a temperature above the &bgr;-transus, so that silicides precipitate in the form of fine particles, with recrystallization suppressed. The resulting titanium alloy is good in workability and has high strength after aging treatment.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: October 14, 2003
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Hideto Oyama, Shinya Ishigai, Masamitsu Fujii, Tadasu Abumiya
  • Titanium alloy and production thereof
    Publication number: 20010050117
    Abstract: A near-&bgr; or &bgr; titanium alloy having high strength, high ductility, and high toughness which is capable of coil rolling at a high temperature and recoiling for high productivity, and a process for producing said titanium alloy. The titanium alloy contains not more than 1.0% (excluding 0%) of Si alone or in combination with not more than 10% of Sn. The process comprises heating a &bgr; alloy or near-&bgr; alloy containing not more than 1.0% (excluding 0%) of Si alone or in combination with not more than 10% of Sn and subjecting said alloy to plastic deformation while keeping silicides solved in it at a temperature above the &bgr;-transus, so that silicides precipitate in the form of fine particles, with recrystallization suppressed. The resulting titanium alloy is good in workability and has high strength after aging treatment.
    Type: Application
    Filed: July 5, 2001
    Publication date: December 13, 2001
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO
    Inventors: Hideto Oyama, Shinya Ishigai, Masamitsu Fujii, Tadasu Abumiya