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

Patent Owner(s)

• TDK CORPORATION

International Classification(s)

• G11B:INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BET....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hirabayashi, Hiraku	Tokyo, JP	149	732
Kurihara, Katsuki	Tokyo, JP	31	429
Ota, Norikazu	Tokyo, JP	72	622

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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
March 08, 2011	US,7903370,B2   US7903370B2	GRANTED PATENT AS SECOND PUBLICATION
March 20, 2008	US,20080068749,A1   US20080068749A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7903370

Thin-film magnetic head with coil-insulating layer that thermal expansion coefficient and young'S modulus are specified

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