Patents by Inventor Takuju Kobori

Takuju Kobori 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).

  • Elasto-plastic damper
    Patent number: 5177915
    Abstract: An elasto-plastic damper adapted to be used in a structure for absorbing vibration energy created by earthquake tremors and other ground vibrations. The damper is formed from flat plates to simplify design and to minimize costs. The damper may be used in combination to absorb vibration energy impacting the structure from different directions.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: January 12, 1993
    Assignee: Kajima Corporation
    Inventors: Takuju Kobori, Shunichi Yamada, Shigeru Ban, Koji Ishii, Isao Nishimura, Masatoshi Ishida, Kuniaki Sato, Yasuo Takenaka, Shozo Maeda, Jun Tagami
  • Elasto-plastic damper
    Patent number: 4901486
    Abstract: An elasto-plastic damper is adapted to be used in a structure, such as a building and other facilities, for absorbing vibration energy created by earthquake tremors and other ground vibrations. The damper is a centrally bulged and generally cone-shaped hollow body of revolution so that its section modulus changes substantially proportional to a bending moment created in the damper body due to horizontal stresses, thus permitting a maximum degree of deformability. This elasto-plastic damper is compact in size and demonstrates a high degree of vibrational energy absorbability.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: February 20, 1990
    Assignee: Kajima Corporation
    Inventors: Takuju Kobori, Shunichi Yamada, Shigeru Ban, Koji Ishii, Isao Nishimura, Masatoshi Ishida, Kuniaki Sato, Yasuo Takenaka, Shozo Maeda, Jun Tagami