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

Patent Owner(s)

Patent Owner	Address
NIPPON STEEL CORPORATION	6-1 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 100-8071

International Classification(s)

• C21D:MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS....
• C22C:ALLOYS

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kita, Hiroshi	Tokyo, JP	190	1774
Okumura, Teruhisa	Tokyo, JP	5	13
Sugiyama, Hirokazu	Tokyo, JP	34	109
Wakatsuki, Teruyuki	Tokyo, JP	6	27
Yoshida, Suguru	Tokyo, JP	71	467

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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

Full Text

US Patent Application No: 2010/0047,107

STEEL MATERIAL SUPERIOR IN HIGH TEMPERATURE STRENGTH AND TOUGHNESS AND METHOD OF PRODUCTION OF SAME

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