发明名称 |
Diaphragm for speaker |
摘要 |
A diaphragm for a speaker formed of a mixture of carbon fiber, pulp and polyvinyl alcohol fiber as a binder with a thermosetting resin on the diaphragm base on which a metal film is provided in the interstices between fibers and on the entire fiber surface.
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申请公布号 |
US4428996(A) |
申请公布日期 |
1984.01.31 |
申请号 |
US19810275813 |
申请日期 |
1981.06.24 |
申请人 |
SANYO ELECTRIC CO. LTD. |
发明人 |
MIYOSHI, YASUSHI;ISHII, YASUHIRO |
分类号 |
D21J3/12;G10K13/00;H04R7/02;(IPC1-7):B32B27/14 |
主分类号 |
D21J3/12 |
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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