Patents by Inventor Ryohei Ogino

Ryohei Ogino 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).

  • Steam turbine
    Patent number: 8105023
    Abstract: A steam turbine has: a casing; a rotor rotatably arranged in the casing; a nozzle diaphragm concentrically arranged with respect to the rotor, the nozzle diaphragm being engaged with the casing; moving blades arranged in circumferential direction on outer circumference of the rotor at positions adjacent to the nozzle diaphragm; seal strips circumferentially extending on tips of the moving blades, the seal strips protruding in radial outward direction; and an abradable structure rigidly connected to the nozzle diaphragm. The abradable structure faces the seal strips in radial direction at a facing surface, and has an abradable part made of an abradable material arranged at the facing surface.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: January 31, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazutaka Ikeda, Takashi Sasaki, Satoru Asai, Hitoshi Sakakida, Kenji Kamimura, Ryohei Ogino, Yasushi Ooishi
  • STEAM TURBINE
    Publication number: 20080175706
    Abstract: A steam turbine has: a casing; a rotor rotatably arranged in the casing; a nozzle diaphragm concentrically arranged with respect to the rotor, the nozzle diaphragm being engaged with the casing; moving blades arranged in circumferential direction on outer circumference of the rotor at positions adjacent to the nozzle diaphragm; seal strips circumferentially extending on tips of the moving blades, the seal strips protruding in radial outward direction; and an abradable structure rigidly connected to the nozzle diaphragm. The abradable structure faces the seal strips in radial direction at a facing surface, and has an abradable part made of an abradable material arranged at the facing surface.
    Type: Application
    Filed: January 2, 2008
    Publication date: July 24, 2008
    Inventors: Kazutaka IKEDA, Takashi Sasaki, Satoru Asai, Hitoshi Sakakida, Kenji Kamimura, Ryohei Ogino, Yasushi Ooishi