Patents by Inventor Kiyoshi Motoyama

Kiyoshi Motoyama 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).

  • Duct wall structure
    Patent number: 7549507
    Abstract: The invention relates to an inner heat insulating and inner sound insulating structure of an HRSG duct wall in which a turbine combustion high temperature and high velocity gas whose temperature is approx. 650° C. and velocity is 30 meters per second (m/s) flows, wherein heat insulating members are filled between the inner plate at the gas flow side and the outer plate at the atmospheric side, an intermediate member is disposed at a middle portion between the inner plate and the outer plate, spacing between the inner plate and the intermediate member is retained by stud bolts while spacing between the outer plate and the intermediate member is retained by stud bolts, and the stud bolt and the outer plate are tightened via a vibration deadening washer.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: June 23, 2009
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Kiyoshi Aida, Nobuo Shimono, Kenji Sumimori, Yasuyuki Owa, Kiyoshi Motoyama
  • Duct wall structure
    Publication number: 20060272282
    Abstract: The invention relates to an inner heat insulating and inner sound insulating structure of an HRSG duct wall in which a turbine combustion high temperature and high velocity gas whose temperature is approx. 650° C. and velocity is 30 meters per second (m/s) flows, wherein heat insulating members are filled between the inner plate at the gas flow side and the outer plate at the atmospheric side, an intermediate member is disposed at a middle portion between the inner plate and the outer plate, spacing between the inner plate and the intermediate member is retained by stud bolts while spacing between the outer plate and the intermediate member is retained by stud bolts, and the stud bolt and the outer plate are tightened via a vibration deadening washer.
    Type: Application
    Filed: August 6, 2004
    Publication date: December 7, 2006
    Inventors: Kiyoda Aida, Nobuo Shimono, Kenji Sumimori, Yasuyuki Owa, Kiyoshi Motoyama