Seismic isolation sliding bearing for structure

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5867951
SERIAL NO

08865207

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A seismic isolation sliding bearing for a structure, is made up of a dish 1 having a conical concave surface having a predetermined inclination or a spherical concave surface in its central portion, and a bearing element 2 in which the bearing element includes a base 3 whose portion for contact with the concave surface of the dish 1 is formed by a low-friction material, and a holder 6 which holds the base 3 so as to press it against the concave surface of the dish 1. The seismic isolation sliding bearing of the present invention neither resonates to the vibration period of any earthquake nor causes a large oscillation during a normal small vibration, but has a restoring force because of its structure which enables the bearing element to readily return to its original position after an earthquake ceases.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI STEEL MFG CO LTDTOKYO 104-8550
FUJITA TAKAFUMICHIBA-SHI CHIBA-KEN

International Classification(s)

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  • 1997 Application Filing Year
  • E02D Class
  • 208 Applications Filed
  • 93 Patents Issued To-Date
  • 44.72 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances199719981999200020012002200320042005200620072008200920102011201220130255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujita, Takafumi 575-28, Nakanokuki, Nagareyama-shi, Chiba, JP 31 527
Hora, Hirokazu Ichihara, JP 1 22
Kurabayashi, Hiroshi Tokyo, JP 7 148
Matsuda, Akira Ichikawa, JP 122 1548
Omi, Toshio Sakura, JP 7 136
Someya, Takeshi Kashiwa, JP 3 33
Sone, Nobuyuki Yamato, JP 14 54
Yaguchi, Daisuke Ichikawa, JP 8 70

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Patent Citation Ranking

  • 22 Citation Count
  • E02D Class
  • 84.89 % this patent is cited more than
  • 26 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges5753811531101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6071 - 8005101520253035404550556065707580

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