ELECTRIC ACOUSTIC CONVERTER AND ELECTRONIC DEVICE USING THE SAME

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(11)

EP 1 742 503 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	published in accordance with Art. 158(3) EPC

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	21.02.2007 Bulletin 2007/08

(43)	Date of publication:
	10.01.2007 Bulletin 2007/02

(21)	Application number: 05738748.2

(22)	Date of filing: 27.04.2005

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International Patent Classification (IPC):

H04R 9/02^(2006.01)

H04M 1/03^(2006.01)

(86)	International application number:
	PCT/JP2005/008448

(87)	International publication number:
	WO 2005/107317 (10.11.2005 Gazette 2005/45)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

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Priority:

28.04.2004 JP 2004133117

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

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Inventors:

HONDA, Kazuki c/o Mat.Elec.Ind.Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
SANO, Koji c/o Mat. Elec. Ind. Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
KUBO, Kazutaka c/o Mat.Elec.Ind.Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
YAMASAKI, Kazuya c/o Mat.Elec.Ind.Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
YANO, Hiroshi c/o Mat.Elec.Ind.Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
SHIMOKAWATOKO, Takeshi c/o Mat.Elec.Ind.Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
FUKUYAMA, Takanori c/o Mat.Elec.Ind. Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
TOMOEDA, Shigeru c/o Mat.Elec.Ind.Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
ENOMOTO, Mitsutaka c/o Mat. Elec. Ind. Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)
SUMIYAMA, Masahide c/o Mat.Elec.Ind.Co., Ltd.
Osaka-shi, Osaka 540-6319 (JP)

(74)	Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
	Maximilianstrasse 58 80538 München 80538 München (DE)

(54)	ELECTRIC ACOUSTIC CONVERTER AND ELECTRONIC DEVICE USING THE SAME

(57) An electro-acoustic transducer wherein a stopper of a terminal is composed of an elastic body having an impulsive-force resistance and an excellent resilience. The stopper is mounted on the yoke or lower plate of magnetic circuit, which is made of a metallic material having an impulsive-force resistance. In this way, the stopper can restrict the terminal within the reversibility limit value of the spring force of the metallic material, and hence can enhance the reliability.