Patents by Inventor Sadao Minagawa

Sadao Minagawa 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 combustor
    Patent number: 6915637
    Abstract: A gas turbine combustor is provided with a nozzle extension tube having an inclination outward in a diameter direction of a combustor inner cylinder and in a peripheral direction of the combustor inner cylinder. As a result, the premixed gas is transformed to a spiral flow passing into a combustion chamber while turning, i.e., an outward turning flow, thereby sufficiently mixing the premixed gas while the premixed gas is flowing in the combustion chamber.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: July 12, 2005
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Koichi Nishida, Katsunori Tanaka, Wataru Akizuki, Sadao Minagawa
  • Gas turbine combustor
    Publication number: 20040163392
    Abstract: A gas turbine combustor is provided with a nozzle extension tube having an inclination outward in a diameter direction of a combustor inner cylinder and in a peripheral direction of the combustor inner cylinder. As a result, the premixed gas is transformed to a spiral flow passing into a combustion chamber while turning, i.e., an outward turning flow, thereby sufficiently mixing the premixed gas while the premixed gas is flowing in the combustion chamber.
    Type: Application
    Filed: March 2, 2004
    Publication date: August 26, 2004
    Applicant: MITSUBISHI HEAVY INDUSTRIES LTD.
    Inventors: Koichi Nishida, Katsunori Tanaka, Wataru Akizuki, Sadao Minagawa
  • Gas turbine combustor
    Patent number: 6772594
    Abstract: A gas turbine combustor is provided with a nozzle extension tube having an inclination outward in a diameter direction of a combustor inner cylinder and in a peripheral direction of the combustor inner cylinder. As a result, the premixed gas is transformed to a spiral flow passing into a combustion chamber while turning, i.e., an outward turning flow, thereby sufficiently mixing the premixed gas while the premixed gas is flowing in the combustion chamber.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: August 10, 2004
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Koichi Nishida, Katsunori Tanaka, Wataru Akizuki, Sadao Minagawa
  • Gas turbine combustor
    Publication number: 20030014975
    Abstract: A gas turbine combustor is provided with a nozzle extension tube having an inclination outward in a diameter direction of a combustor inner cylinder and in a peripheral direction of the combustor inner cylinder. As a result, the premixed gas is transformed to a spiral flow passing into a combustion chamber while turning, i.e., an outward turning flow, thereby sufficiently mixing the premixed gas while the premixed gas is flowing in the combustion chamber.
    Type: Application
    Filed: June 25, 2002
    Publication date: January 23, 2003
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Koichi Nishida, Katsunori Tanaka, Wataru Akizuki, Sadao Minagawa