发明授权
- 专利标题： Diaphragm for speaker
- 专利标题（中）： 扬声器隔膜
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申请号： US275813申请日： 1981-06-24
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公开(公告)号： US4428996A公开(公告)日： 1984-01-31
- 发明人: Yasushi Miyoshi , Yasuhiro Ishii
- 申请人： Yasushi Miyoshi , Yasuhiro Ishii
- 申请人地址： JPX Moriguchi
- 专利权人： Sanyo Electric Co. Ltd.
- 当前专利权人： Sanyo Electric Co. Ltd.
- 当前专利权人地址： JPX Moriguchi
- 优先权： JPX52-11913 19770202; JPX52-11914 19770202; JPX52-112329 19770916
- 主分类号： D21J3/12
- IPC分类号： D21J3/12 ; G10K13/00 ; H04R7/02 ; B32B27/14
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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