Patents by Inventor Ronald Takahashi

Ronald Takahashi 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).

  • Gas turbine
    Patent number: 7410343
    Abstract: An outer shape of a section in the longitudinal direction at a leading edge of the strut is an aerofoil whose thickness is gradually increased along a flow direction of the combustion gas to prevent reduction of turbine efficiency caused by a shock wave generated at the strut of the exhaust diffuser.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: August 12, 2008
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Susumu Wakazono, Kouichi Ishizaka, Masanori Yuri, Ronald Takahashi
  • Gas turbine
    Publication number: 20070025847
    Abstract: An outer shape of a section in the longitudinal direction at a leading edge of the strut is an aerofoil whose thickness is gradually increased along a flow direction of the combustion gas to prevent reduction of turbine efficiency caused by a shock wave generated at the strut of the exhaust diffuser.
    Type: Application
    Filed: August 4, 2005
    Publication date: February 1, 2007
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Susumu Wakazono, Kouichi Ishizaka, Masanori Yuri, Ronald Takahashi
  • Exhaust diffuser for axial-flow turbine
    Publication number: 20050172607
    Abstract: An axial-flow turbine has an exhaust diffuser including a hub-side tube and a tip-side tube. In the exhaust diffuser, front struts and rear struts are placed to cross a flow of working fluid. A wake generated behind the front strut diverts from the rear strut and passes through a gap between a pair of the rear struts. Otherwise, a wake generated behind the front strut hits against the front face of the rear strut. The front struts are equal to or multiple of the rear struts in number.
    Type: Application
    Filed: February 8, 2005
    Publication date: August 11, 2005
    Inventors: Koichi Ishizaka, Masanori Yuri, Susumu Wakazono, Ronald Takahashi
  • Exhaust diffuser for axial-flow turbine
    Patent number: 6866479
    Abstract: An axial-flow turbine has an exhaust diffuser including a hub-side tube and a tip-side tube. In the exhaust diffuser, front struts and rear struts are placed to cross a flow of working fluid. A wake generated behind the front strut diverts from the rear strut and passes through a gap between a pair of the rear struts. Otherwise, a wake generated behind the front strut hits against the front face of the rear strut. The front struts are equal to or multiple of the rear struts in number.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: March 15, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kouichi Ishizaka, Masanori Yuri, Susumu Wakazono, Ronald Takahashi
  • Exhaust diffuser for axial-flow turbine
    Publication number: 20040228726
    Abstract: An axial-flow turbine has an exhaust diffuser including a hub-side tube and a tip-side tube. In the exhaust diffuser, front struts and rear struts are placed to cross a flow of working fluid. A wake generated behind the front strut diverts from the rear strut and passes through a gap between a pair of the rear struts. Otherwise, a wake generated behind the front strut hits against the front face of the rear strut. The front struts are equal to or multiple of the rear struts in number.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 18, 2004
    Inventors: Kouichi Ishizaka, Masanori Yuri, Susumu Wakazono, Ronald Takahashi
  • Gas turbine
    Publication number: 20040109756
    Abstract: An outer shape of a section in the longitudinal direction at a leading edge of the strut is an aerofoil whose thickness is gradually increased along a flow direction of the combustion gas to prevent reduction of turbine efficiency caused by a shock wave generated at the strut of the exhaust diffuser.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 10, 2004
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Susumu Wakazono, Kouichi Ishizaka, Masanori Yuri, Ronald Takahashi