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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
KAWASAKI STEEL CORPORATION A CORPORATION OF JAPAN	KOBE-SHI 1-28 KITAHONMACHIDORI 1-CHOME CHUO-KU HYOGO 651-0075

International Classification(s)

• C21C:PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE....

• 2001 Application Filing Year
• C21C Class
• 91 Applications Filed
• 25 Patents Issued To-Date
• 27.48 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Akiyoshi, Tetsuo	Okayama, JP	2	0
# of filed Patents : 2 Total Citations : 0

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Patent Citation Ranking

• 0 Citation Count
• C21C Class

• 0 % this patent is cited more than
• 22 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 17, 2003	US,6579340,B2   US6579340B2	GRANTED PATENT AS SECOND PUBLICATION
December 20, 2001	US,20010052661,A1   US20010052661A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 6579340

Fume dust suppression during pouring of molten metal, and apparatus

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Abstract

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Fume dust is prevented when molten metal is poured into a vessel, and water spray of water mist is introduced into the vessel or onto the molten metal, creating a reduced level of oxygen concentration of about 12% by volume, preferably about 8% by volume, inside the vessel or at the molten metal surface.

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Description

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Claims

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