The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Oct. 20, 2008
Applicants:
Satoshi Fujita, Chiyoda-ku, JP;
Go Tanaka, Ashikaga, JP;
Mitsuru Miyazaki, Ashikaga, JP;
Hideo Ozawa, Fujisawa, JP;
Ikuo Shimoda, Fujisawa, JP;
Inventors:
Satoshi Fujita, Chiyoda-ku, JP;
Go Tanaka, Ashikaga, JP;
Mitsuru Miyazaki, Ashikaga, JP;
Hideo Ozawa, Fujisawa, JP;
Ikuo Shimoda, Fujisawa, JP;
Assignee:
Tokyo Denki University Oiles Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04H 9/02 (2006.01); F16F 15/027 (2006.01); E04B 1/98 (2006.01);
U.S. Cl.
CPC ...
F16F 15/027 (2013.01); E04H 2009/026 (2013.01); E04B 1/985 (2013.01); E04H 9/023 (2013.01);
Abstract
The present invention is intended to provide a seismic isolation device which, regardless of a load to be supported, is capable of reducing acceleration through lengthening a natural period of an upper structure, with excellent vibration energy absorbing capacity by obtaining a properly preferable frictional force as well as a returning characteristic, and others.