Kajima Corporation

Takuju Kobori

Isao Nishimura

Kuniaki Sato

Koji Ishii

Shigeru Ban

Jun Tagami

Shunichi Yamada

Masatoshi Ishida

Shozo Maeda

Yasuo Takenaka

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.

Elasto-plastic damper

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.

Growing community of inventors

Tokyo, Japan

Takuju Kobori