Patents by Inventor Noriaki Sentou

Noriaki Sentou 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).

  • Patent number: 6694815
    Abstract: To predict residual settlement quantity and residual horizontal deformation quantity of ground where a liquefaction phenomenon has occurred due to earthquake. Soils in situ (stratum B to stratum D) are sampled from ground, and are made to be element test object stratums. A stratum whose characteristic is well-known, or the like may be substituted for a numerical model (stratum A). Next, setting of input conditions is performed, and vertical stress, horizontal stress and initial shear stress, which are equivalent to applied load that the ground at a depth of the point suffers, are worked on to each stratum. This recreates a stress status of soil before earthquake occurs. Then, shear displacement and the movement quantity of interstitial water by earthquake are given to the test piece, and the quantity of shear stress and pore water pressure, which have occurred, is obtained.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: February 24, 2004
    Assignee: Tohoku Techno Arch Co., Ltd.
    Inventors: Motoki Kazama, Noriaki Sentou, Akira Yamaguchi
  • Publication number: 20030177834
    Abstract: To predict residual settlement quantity and residual horizontal deformation quantity of ground where a liquefaction phenomenon has occurred due to earthquake.
    Type: Application
    Filed: March 13, 2003
    Publication date: September 25, 2003
    Applicant: TOHOKU TECHNO ARCH CO., LTD.
    Inventors: Motoki Kazama, Noriaki Sentou, Akira Yamaguchi