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

Patent Owner(s)

Patent Owner	Address
FUJI ELECTRIC DEVICE TECHNOLOGY CO LTD	1-11-2 OSAKI SHINAGAWA-KU TOKYO

International Classification(s)

• C23C:COATING METALLIC MATERIAL; COATING MATERIAL WITH M....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Iso, Akira	Nagano, JP	21	229
# of filed Patents : 21 Total Citations : 229
Isozaki, Makoto	Nagano, JP	84	804
# of filed Patents : 84 Total Citations : 804

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• 0 Citation Count
• C23C Class

• 0 % this patent is cited more than
• 17 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
July 15, 2008	US,7399386,B2   US7399386B2	GRANTED PATENT AS SECOND PUBLICATION
April 10, 2003	US,20030068508,A1   US20030068508A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7399386

Magnetic recording medium, method of manufacturing the same and magnetic recording apparatus

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Abstract

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A magnetic recording medium using a plastic substrate as a non-magnetic substrate includes an adhesive layer that prevents film expansion even under severe conditions. The adhesive layer has a chemical affinity to the plastic substrate and is formed on the surface of the plastic substrate, and an underlayer and subsequent layers are formed over the adhesive layer. A polymerized carbon film is used as the adhesive layer.

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Description

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Claims

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