Shield material
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United States of America Patent
Stats
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Apr 14, 2009
Grant Date -
Nov 9, 2006
app pub date -
Mar 18, 2003
filing date -
Mar 18, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a fire-resistant lead-free shield material having high shielding ability against nuclear or electromagnetic radiation, and excellent bending workability and handling performance. The shield material comprises a composite material consisting of an organic material and a metal or metal compound having a nuclear or electromagnetic radiation-shielding ability. The composite material is formed into a given shape, such as a plate shape, and wrapped with a cloth-like sheet formed of glass fibers, metal fibers or carbon fibers. Alternatively, the shield material comprises a shielding element consisting of an elastic polymeric organic compound and a particle having a nuclear or electromagnetic radiation-shielding ability, such a heavy metal or ferrite. The shield material also includes either one of a film made of polyethylene, nylon, polyester or metal, a wire mesh formed of nylon fiber or metal fiber, and a plate- or rod-shaped member having a surface formed with a protrusion, which is compression-bonded onto or in the vicinity of a surface of the shielding element, or inside the shielding element.

First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
NIPPON TUNGSTEN CO LTD | 2-8 MINOSHIMA 1-CHOME HAKATA-KU FUKUOKA-SHI FUKUOKA 812-0017 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Matsuo, Shigeru | Fukuoka , JP | 123 | 2417 |
Okamura, Kenji | Fukuoka, JP | 83 | 1116 |
Sakaguchi, Shigeya | Fukuoka, JP | 7 | 86 |
Yamauchi, Masahiro | Fukuoka, JP | 34 | 232 |
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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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