Patents by Inventor Ryousuke Ogawa

Ryousuke Ogawa 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).

  • Highly stiff and highly damping cast iron
    Patent number: 8641962
    Abstract: A highly stiff and highly damping cast iron containing C and Si in an amount of 3.30 to 3.95% in terms of carbon equivalent shown in the following equation (1), Mn: 0.25 to 1.0%, P: 0.04% or less, S: 0.03% or less, Al: 3 to 7%, and Sn: 0.03 to 0.20%, balance being Fe and unavoidable impurities: Carbon equivalent (%)=C(%)+(1/3)×Si(%)??(1).
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: February 4, 2014
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Sakae Takahashi, Naoki Sakamoto, Ryousuke Fujimoto, Ryousuke Ogawa, Yuji Nihei
  • HIGHLY STIFF AND HIGHLY DAMPING CAST IRON
    Publication number: 20090297386
    Abstract: A highly stiff and highly damping cast iron containing C and Si in an amount of 3.30 to 3.95% in terms of carbon equivalent shown in the following equation (1), Mn: 0.25 to 1.0%, P: 0.04% or less, S: 0.03% or less, Al: 3 to 7%, and Sn: 0.03 to 0.
    Type: Application
    Filed: August 13, 2009
    Publication date: December 3, 2009
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Sakae Takahashi, Naoki Sakamoto, Ryousuke Fujimoto, Ryousuke Ogawa, Yuji Nihei