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

Patent Owner(s)

Patent Owner	Address
OKUTAMA KOGYO CO LTD	TOKYO TOKYO METROPOLIS

International Classification(s)

• C09C:TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBRO....
• C01F:COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUM....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kawazu, Toru	Tachikawa, JP	3	20
Shimono, Kazuhisa	Tachikawa, JP	4	60
Takano, Tatsuo	Tachikawa, JP	6	87
Yamashita, Kazuo	Tachikawa, JP	42	513

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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
September 13, 2011	US,8017101,B2   US8017101B2	GRANTED PATENT AS SECOND PUBLICATION
July 26, 2007	US,20070169905,A1   US20070169905A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8017101

Precipitated calcium carbonate, method for producing the same and filler for loading paper using the same

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