发明名称 |
SPEAKER |
摘要 |
PROBLEM TO BE SOLVED: To provide a speaker with a low profile used for various acoustic apparatuses and information communication apparatuses that reduces a vibration transmission loss from voice coils to a diaphragm. SOLUTION: The diaphragm of the speaker of this invention is configured such that a joined part A of the diaphragm with the voice coil 28 is projected opposite to the voice coil 27 and the middle part of the diaphragm 27 is recessed toward the voice coil 27. COPYRIGHT: (C)2004,JPO
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申请公布号 |
JP2004056278(A) |
申请公布日期 |
2004.02.19 |
申请号 |
JP20020208400 |
申请日期 |
2002.07.17 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
TAKASE TOMOYASU;SUMIYAMA MASAHIDE |
分类号 |
H04R9/04;H04R7/14;(IPC1-7):H04R9/04 |
主分类号 |
H04R9/04 |
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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