<p>A speaker used for mobile communication devices such as a mobile phone and composed of a case and two speaker elements in the case. The speaker has stable characteristics such as sound pressure-frequency characteristic. The yoke (3A) of the speaker is integrated with the frame (1C) into one piece by insert molding when the frame is molded. Thus, the speaker is free from the conventional assembly variation due to the variation of bonding of the frame and the yoke during speaker assembly.</p>
申请公布号
WO2004103017(A1)
申请公布日期
2004.11.25
申请号
WO2004JP07024
申请日期
2004.05.18
申请人
TANABU, TAKEHIKO;MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;YANO, HIROSHI