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

Patent Owner(s)

Patent Owner	Address
HITACHI LTD	6-6 MARUNOUCHI 1-CHOME CHIYODA-KU TOKYO 1008280 ?1008280

International Classification(s)

• G06F:ELECTRIC DIGITAL DATA PROCESSING

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kimura, Toshio	Odawara, JP	103	1516
Murayama, Shunji	Hiratsuka, JP	3	117
Shibuya, Hiroji	Odawara, JP	14	218
Teranishi, Mika	Ninomiya, JP	5	149

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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
May 07, 2013	US,8438185,B2   US8438185B2	GRANTED PATENT AS SECOND PUBLICATION
May 17, 2012	US,20120124092,A1   US20120124092A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8438185

File storage apparatus and access control method

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