发明授权
- 专利标题： Microspeaker
- 专利标题（中）： 微型扬声器
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申请号： US09977347申请日： 2001-10-16
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公开(公告)号： US06690809B2公开(公告)日： 2004-02-10
- 发明人: Kazumi Miyamoto , Yoshizumi Ohta , Takashi Kobayashi
- 申请人： Kazumi Miyamoto , Yoshizumi Ohta , Takashi Kobayashi
- 优先权： JP2000-338397 20001106
- 主分类号： H04R2500
- IPC分类号： H04R2500
摘要：
A case comprises an upper case and a lower case. A vibrating plate is secured to the upper case, a voice coil is secured to an underside of the vibrating plate. Each end portion of the voice coil is engaged in a groove formed in the upper case.
公开/授权文献
- US20020054688A1 Microspeaker 公开/授权日：2002-05-09
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