Patents by Inventor Yuji Shiga

Yuji Shiga 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).

  • Damping device and method for setting natural frequency of damping body in the damping device
    Patent number: 7707787
    Abstract: Installed on a top of a structure (1) is a base stand (11) against which damping body (3) movably rests via a linear guide mechanism (12). Mounted between the damping body (3) and the structure (1) or between the damping body (3) and a top of a support housing (14) erected on the structure (1) is a characteristic-frequency adjusting spring or springs (13) with an initial tension being applied vertically. Movement of the damping body (3) causes the spring or springs (13) to be obliquely and longitudinally expanded to apply horizontal component to the damping body (3) upon restoring.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: May 4, 2010
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Mutsuhiro Kazama, Fumio Sato, Nayomon Uno, Masao Mutaguchi, Yuji Shiga
  • Damping device and method for setting natural frequency of damping body in the damping device
    Publication number: 20050011143
    Abstract: Installed on a top of a structure (1) is a base stand (11) against which damping body (3) movably rests via a linear guide mechanism (12). Mounted between the damping body (3) and the structure (1) or between the damping body (3) and a top of a support housing (14) erected on the structure (1) is a characteristic-frequency adjusting spring or springs (13) with an initial tension being applied vertically. Movement of the damping body (3) causes the spring or springs (13) to be obliquely and longitudinally expanded to apply horizontal component to the damping body (3) upon restoring.
    Type: Application
    Filed: February 26, 2003
    Publication date: January 20, 2005
    Inventors: Mutsuhiro Kazama, Fumio Sato, Nayomon Uno, Masao Mutaguchi, Yuji Shiga