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

Patent Owner(s)

Patent Owner	Address
TORAY INDUSTRIES INC	TOKYO JAPAN TOKYO METROPOLIS

International Classification(s)

• C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
• C08F:MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONL....
• H01M:PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT....
• C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
• C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
• B01D:SEPARATION
• H01G:CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWI....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Tamura, Satoshi	Ichihara, JP	111	732
Tsunori, Ryoichi	Ichihara, JP	15	65

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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 23, 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 23, 2014	US,8916644,B2   US8916644B2	GRANTED PATENT AS SECOND PUBLICATION
November 03, 2011	US,20110269900,A1   US20110269900A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8916644

Polypropylene resin composition for use in formation of microporous membrane

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