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

Patent Owner(s)

Patent Owner	Address
NEC CORPORATION	7-1 SHIBA 5-CHOME MINATO-KU TOKYO 1088001 ?1088001

International Classification(s)

• H04L:TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAP....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Huang, Lei	Tokyo, JP	706	4924

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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
October 30, 2012	US,8302176,B2   US8302176B2	GRANTED PATENT AS SECOND PUBLICATION
October 15, 2009	US,20090260058,A1   US20090260058A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8302176

Validity checking system, validity checking method, information processing card, checking device, and authentication apparatus

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