Patents by Inventor Masamichi Sogabe

Masamichi Sogabe 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).

  • Method for seismically reinforcing a reinforced concrete frame
    Patent number: 6698053
    Abstract: A reinforced concrete frame is seismically reinforced by cutting a main reinforcement bar of a reinforced concrete member so as to shift a failure property of the reinforced concrete member from a shear failure preceding type to a bending failure preceding type.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: March 2, 2004
    Assignees: Obayashi Corporation, Railway Technical Institute
    Inventors: Hajime Ouchi, Motoyuki Okano, Hajime Wakui, Nobuyuki Mastsumoto, Masamichi Sogabe, Hiroyuki Arita
  • Elevated bridge infrastructure and design method for designing the same
    Publication number: 20020157196
    Abstract: In order to design an infrastructure of an elevated bridge, first a target ductility factor &mgr;d and target natural period Td for the infrastructure are set in connection with an assumed earthquake motion. Subsequently, a yield seismic coefficient for the target ductility factor &mgr;d and target natural period Td is obtained from a yield seismic coefficient spectrum for the assumed earthquake motion as a design seismic coefficient Kh. On the other hand, a target yield rigidity Kd corresponding to the target natural period Td is obtained. Subsequently, the design seismic coefficient Kh is used to obtain a design horizontal load bearing capacity Hd and a displacement corresponding to the design horizontal load bearing capacity Hd is obtained as a design yield displacement &dgr;d from the target yield rigidity Kd. Subsequently, the design horizontal load bearing capacity Hd is distributed into a horizontal force Hf to be borne by the RC rigid frame and a horizontal force Hb to be borne by the damper-brace.
    Type: Application
    Filed: May 8, 2002
    Publication date: October 31, 2002
    Inventors: Hajime Ouchi, Motoyuki Okano, Hajime Wakui, Nobuyuki Mastsumoto, Masamichi Sogabe, Hiroyuki Arita
  • Elevated bridge infrastructure design method
    Patent number: 6425157
    Abstract: In order to design an infrastructure of an elevated bridge, first a target ductility factor &mgr;d and target natural period Td for the infrastructure are set in connection with an assumed earthquake motion. Subsequently, a yield seismic coefficient for the target ductility factor &mgr;d and target natural period Td is obtained from a yield seismic coefficient spectrum for the assumed earthquake motion as a design seismic coefficient Kh. On the other hand, a target yield rigidity Kd corresponding to the target natural period Td is obtained. Subsequently, the design seismic coefficient Kh is used to obtain a design horizontal load bearing capacity Hd and a displacement corresponding to the design horizontal load bearing capacity Hd is obtained as a design yield displacement &dgr;d from the target yield rigidity Kd. Subsequently, the design horizontal load bearing capacity Hd is distributed into a horizontal force Hf to be borne by the RC rigid frame and a horizontal force Hb to be borne by the damper-brace.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: July 30, 2002
    Assignees: Obayashi Corporation, Railway Technical Research Institute
    Inventors: Hajime Ouchi, Motoyuki Okano, Hajime Wakui, Nobuyuki Mastsumoto, Masamichi Sogabe, Hiroyuki Arita, Michiaki Oyado