发明名称 |
Electromagnetic transducer and portable communication device |
摘要 |
An electromagnetic transducer includes a magnetic member, a suspension for supporting the magnetic member at a central portion of the suspension, a diaphragm connected to the suspension, a magnet for generating magnetic flux on the magnetic member, and a coil for generating alternating magnetic flux on the magnetic member. <IMAGE> |
申请公布号 |
EP1194002(A3) |
申请公布日期 |
2003.06.18 |
申请号 |
EP20010122630 |
申请日期 |
2001.09.27 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
USUKI, SAWAKO;SAIKI, SHUJI |
分类号 |
B06B1/04;H04R7/12;H04R13/02 |
主分类号 |
B06B1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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