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

Patent Owner(s)

• MATSUSHITA ELECTRIC WORKS, LTD.;PANASONIC ELECTRIC WORKS CO., LTD.

International Classification(s)

• B06B:GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS I....
• H04R:LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR ....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Honda, Yoshiaki	Seika-chou, JP	94	901
Watabe, Yoshifumi	Tondabayashi, JP	31	521

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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
January 06, 2009	US,7474590,B2   US7474590B2	GRANTED PATENT AS SECOND PUBLICATION
September 20, 2007	US,20070217289,A1   US20070217289A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 7474590

Pressure wave generator and process for manufacturing the same

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