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

Patent Owner(s)

Patent Owner	Address
NIPPON PISTON RING CO LTD	12-10 HONMACHI-HIGASHI 5-CHOME CHUO-KU SAITAMA-SHI SAITAMA 338-8503

International Classification(s)

• C23C:COATING METALLIC MATERIAL; COATING MATERIAL WITH M....
• F16J:PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; S....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ozaki, Takuya	Saitama, JP	12	30
Sugiura, Hiroyuki	Saitama, JP	86	589

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jul 9, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jul 9, 2029

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge - 7.5 year - Late payment within 6 months	$160.00	$80.00	$40.00
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
January 09, 2018	US,9863534,B2   US9863534B2	GRANTED PATENT AS SECOND PUBLICATION
January 07, 2016	US,20160003356,A1   US20160003356A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 9863534

Hard carbon coating film

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