发明名称 |
SPEAKER, SPEAKER-USE DIAPHRAGM, DUST CAP, PRODUCTION METHODS AND PRODUCTION DEVICES FOR THEM |
摘要 |
A speaker diaphragm or a dust cap formed by injection molding a mixture at least containing a resin material and a fiber material. The speaker diaphragm or the dust cap combines the advantages of both a paper diaphragm and a resin diaphragm. The advantage of a paper diaphragm is a large degree of freedom in setting physical properties. The advantages of a resin diaphragm are being excellent in moisture resistance reliability, strength, external appearance, productivity and dimension stability.
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申请公布号 |
EP1718106(A1) |
申请公布日期 |
2006.11.02 |
申请号 |
EP20050704325 |
申请日期 |
2005.02.01 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
OKAZAKI, MASATOSHI;SUZUMURA, MASAKI;MIZONE, SHINYA;KAJIHARA, YOSHIMICHI;NISHIMURA, KAZUAKI;SUMIYAMA, MASAHIDE |
分类号 |
H04R7/02;H04R7/12;H04R31/00 |
主分类号 |
H04R7/02 |
代理机构 |
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代理人 |
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地址 |
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