Patents by Inventor Takumi HAREYAMA

Takumi HAREYAMA 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, high-damping-capacity cast iron
    Patent number: 10077488
    Abstract: A high-strength, high-damping-capacity cast iron having both a high strength and high vibration damping capacity is provided. The high-strength, high-damping-capacity cast iron is obtained by a method including performing a graphite spheroidizing treatment on a molten metal, and consists of 2% to 4% of C, 1% to 5% of Si, 0.2% to 0.9% of Mn, 0.1% or less of P, 0.1% or less of S, 3% to 7% of Al, 0% to 1% of Sb, 0% to 0.5% of Sn, 0.02% to 0.10% of Mg, 01% to 0.5% of RE (Ce, La), Fe as balance, and unavoidable impurity.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: September 18, 2018
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Ryousuke Fujimoto, Takumi Hareyama
  • HIGH-STENGTH, HIGH-DAMPING-CAPACITY CAST IRON
    Publication number: 20160053351
    Abstract: A high-strength, high-damping-capacity cast iron having both a high strength and high vibration damping capacity is provided. The high-strength, high-damping-capacity cast iron is obtained by a method including performing a graphite spheroidizing treatment on a molten metal, and consists of 2% to 4% of C, 1% to 5% of Si, 0.2% to 0.9% of Mn, 0.1% or less of P, 0.1% or less of S, 3% to 7% of Al, 0% to 1% of Sb, 0% to 0.5% of Sn, 0.02% to 0.10% of Mg, 01% to 0.5% of RE (Ce, La), Fe as balance, and unavoidable impurity.
    Type: Application
    Filed: October 30, 2015
    Publication date: February 25, 2016
    Inventors: Ryousuke FUJIMOTO, Takumi HAREYAMA