ACOUSTIC MIRROR TYPE THIN FILM BULK ACOUSTIC RESONATOR, AND FILTER, DUPLEXER AND COMMUNICATION APPARATUS COMPRISING THE SAME - Patent 1730839

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EP 1 730 839 A1

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(43)	Date of publication:
	13.12.2006 Bulletin 2006/50

(21)	Application number: 05728603.1

(22)	Date of filing: 31.03.2005

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International Patent Classification (IPC):

H03H 9/17^(2006.01)

(86)	International application number:
	PCT/JP2005/006810

(87)	International publication number:
	WO 2005/096494 (13.10.2005 Gazette 2005/41)

(84)	Designated Contracting States:
	DE FR GB

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Priority:

31.03.2004 JP 2004106208

(71)	Applicant: Matsushita Electric Industries Co., Ltd.
	Kadoma-shi, Osaka 571-8501 (JP)

(72)	Inventors:
	IWASAKI, Tomohiro Osaka 561-0884 (JP) NAKATSUKA, Hiroshi Osaka 576-0021 (JP) ONISHI, Keiji Osaka 566-0043 (JP) NAKAMURA, Hiroyuki Osaka 576-0016 (JP)

(74)	Representative: Pautex Schneider, Nicole Véronique et al
	Novagraaf International SA 25, Avenue du Pailly 1220 Les Avanchets - Geneva 1220 Les Avanchets - Geneva (CH)

(54)	ACOUSTIC MIRROR TYPE THIN FILM BULK ACOUSTIC RESONATOR, AND FILTER, DUPLEXER AND COMMUNICATION APPARATUS COMPRISING THE SAME