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

Patent Owner(s)

Patent Owner	Address
NORITZ CORPORATION	93 EDOMACHI CHUO-KU KOBE-SHI HYOGO 650-0033

International Classification(s)

• F28F:DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATU....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kawaguchi, Satoshi	Hyogo, JP	70	718
Koda, Hidefumi	Hyogo, JP	6	19
Obayashi, Toshihiko	Hyogo, JP	2	6
Yamada, Kohei	Hyogo, JP	139	520

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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
May 03, 2011	US,7934538,B2   US7934538B2	GRANTED PATENT AS SECOND PUBLICATION
February 14, 2008	US,20080035077,A1   US20080035077A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7934538

Heat exchanger and water heater

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