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

Patent Owner(s)

Patent Owner	Address
WESTERN DIGITAL TECHNOLOGIES INC	5601 GREAT OAKS PARKWAY SAN JOSE CA 95119

International Classification(s)

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

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• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Masuda, Daisuke	Tokyo, JP	16	420
Okamoto, Iwao	Tokyo, JP	58	675
Saito, Chiyo	Tokyo, JP	5	308

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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	Jun 30, 2026

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
December 30, 2014	US,8922936,B2   US8922936B2	GRANTED PATENT AS SECOND PUBLICATION
March 22, 2012	US,20120069466,A1   US20120069466A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8922936

Apparatus of single write magnetic disc

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