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

Patent Owner(s)

• AIKAWA IRON WORKS CO., LTD.;NIPPON PAPER INDUSTRIES CO., LTD.

International Classification(s)

• D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
• D21D:TREATMENT OF THE MATERIALS BEFORE PASSING TO THE P....
• D21C:PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE ....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Goto, Shisei	Tokyo, JP	29	243
Hosaka, Tatsumi	Hokkaido, JP	2	12
Noda, Takaharu	Tokyo, JP	11	169
Ohtake, Hiroki	Tokyo, JP	1	11

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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	Jul 6, 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
January 06, 2015	US,8926793,B2   US8926793B2	GRANTED PATENT AS SECOND PUBLICATION
January 23, 2014	US,20140020856,A1   US20140020856A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8926793

Processes for preparing pulp and paper

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