Patents by Inventor Tsuneo Hijikata

Tsuneo Hijikata 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 blade
    Patent number: 6227804
    Abstract: A gas turbine blade is provided with a hollow blade effective section and a blade implanted section operatively connected to the blade effective section and the gas turbine blade is formed with: a leading edge passage for guiding a cooling medium from a supply passage of the blade implanted section on a blade leading edge side of the hollow blade effective section; leading edge intermediate passages following the leading edge passage; and a trailing edge passage for guiding the cooling medium from a supply passage of a blade implanted section on a blade trailing edge side of the hollow blade effective section. The leading edge passage being provided with a heat transfer accelerating element which is arranged in a right ascendant state inclined to an advancing flow direction of the cooling medium when supplying the cooling medium from the blade implanted section to a blade tip section side or left (leading edge side) ascendant state from the blade tip section to the blade implanted section.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: May 8, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akinori Koga, Hiroyuki Kawagishi, Takanari Okamura, Tsuneo Hijikata, Shokou Ito