Seismic isolation sliding bearing for structure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 9, 1999
Grant Date -
N/A
app pub date -
May 29, 1997
filing date -
Jun 14, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
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.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
MITSUBISHI STEEL MFG CO LTD | TOKYO 104-8550 | |
FUJITA TAKAFUMI | CHIBA-SHI CHIBA-KEN |
International Classification(s)

- 1997 Application Filing Year
- E02D Class
- 208 Applications Filed
- 93 Patents Issued To-Date
- 44.72 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Fujita, Takafumi | 575-28, Nakanokuki, Nagareyama-shi, Chiba, JP | 31 | 527 |
# of filed Patents : 31 Total Citations : 527 | |||
Hora, Hirokazu | Ichihara, JP | 1 | 22 |
# of filed Patents : 1 Total Citations : 22 | |||
Kurabayashi, Hiroshi | Tokyo, JP | 7 | 148 |
# of filed Patents : 7 Total Citations : 148 | |||
Matsuda, Akira | Ichikawa, JP | 122 | 1548 |
# of filed Patents : 122 Total Citations : 1548 | |||
Omi, Toshio | Sakura, JP | 7 | 136 |
# of filed Patents : 7 Total Citations : 136 | |||
Someya, Takeshi | Kashiwa, JP | 3 | 33 |
# of filed Patents : 3 Total Citations : 33 | |||
Sone, Nobuyuki | Yamato, JP | 14 | 54 |
# of filed Patents : 14 Total Citations : 54 | |||
Yaguchi, Daisuke | Ichikawa, JP | 8 | 70 |
# of filed Patents : 8 Total Citations : 70 |
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Patent Citation Ranking
- 22 Citation Count
- E02D Class
- 84.89 % this patent is cited more than
- 26 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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