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

Patent Owner(s)

Patent Owner	Address
TDK CORPORATION	2-5-1 NIHONBASHI CHUO-KU TOKYO 103-6128

International Classification(s)

• C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Furukawa, Masahito	Tokyo, JP	42	230
Iezumi, Kumiko	Tokyo, JP	5	32
Inoue, Masayoshi	Tokyo, JP	18	185
Itakura, Keisuke	Tokyo , JP	19	76
Kozasa, Yumiko	Tokyo, JP	1	4
Nanao, Masaru	Tokyo, JP	17	58
Ozawa, Satoshi	Tokyo, JP	96	1353
Sakamoto, Hideya	Tokyo, JP	20	26
Sakamoto, Norimasa	Tokyo, JP	13	59
Tsukada, Takeo	Tokyo, JP	42	244
Yamazaki, Junichi	Tokyo , JP	56	658

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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
March 24, 2009	US,7507347,B2   US7507347B2	GRANTED PATENT AS SECOND PUBLICATION
September 27, 2007	US,20070222341,A1   US20070222341A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7507347

Piezoelectric ceramic composition and laminated piezoelectric element

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