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

Patent Owner(s)

Patent Owner	Address
CSE CO LTD	TOKYO 150-0002

International Classification(s)

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

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kobayashi, Tsuyoshi	Tokyo, JP	203	2224
Takano, Toru	Tokyo, JP	6	99
Tamai, Shigetomo	Tokyo, JP	7	224

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Dec 10, 2025

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 11.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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 10, 2014	US,8752147,B2   US8752147B2	GRANTED PATENT AS SECOND PUBLICATION
July 18, 2013	US,20130185779,A1   US20130185779A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8752147

System and method for two-factor user authentication

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