Patents by Inventor Masahiro Hiragishi

Masahiro Hiragishi 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).

  • Apparatus and method of correcting deformation of gas turbine blade
    Patent number: 6938447
    Abstract: An apparatus for correcting deformation of a gas turbine blade includes a stationary die fixed to a backside of a tip shroud of a gas turbine blade to hold a back surface thereof and a pressing die pressing a front surface of the tip shroud so as to press the tip shroud of the blade between the pressing die and the stationary. A hydraulic drive mechanism including pressure generator is arranged for pressing the pressing die against the tip shroud held by the stationary die and a control device is operatively connected to the hydraulic drive mechanism so as to set and indicate a driving condition on a basis of deformation correction data preliminarily stored in the control device.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: September 6, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiaki Fuse, Daizo Saito, Yomei Yoshioka, Masahiro Hiragishi, Junji Ishii
  • Apparatus and method of correcting deformation of gas turbine blade
    Publication number: 20040035163
    Abstract: An apparatus for correcting deformation of a gas turbine blade includes a stationary die fixed to a backside of a tip shroud of a gas turbine blade to hold a back surface thereof and a pressing die pressing a front surface of the tip shroud so as to press the tip shroud of the blade between the pressing die and the stationary. A hydraulic drive mechanism including pressure generator is arranged for pressing the pressing die against the tip shroud held by the stationary die and a control device is operatively connected to the hydraulic drive mechanism so as to set and indicate a driving condition on a basis of deformation correction data preliminarily stored in the control device.
    Type: Application
    Filed: June 26, 2003
    Publication date: February 26, 2004
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshiaki Fuse, Daizo Saito, Yomei Yoshioka, Masahiro Hiragishi, Junji Ishii