发明名称 Diaphragm for acoustic equipment
摘要 A diaphragm for acoustic equipment wherein a surface-hardened layer of SiC film is formed on the surface of the diaphragm substrate comprising a completely carbonaceous film. Thus, the diaphragm for acoustic equipment having superior acoustic characteristics by utilizing the superior physical characteristics of carbon can be used effectively as a diaphragm for digital-audio equipment which are now very popular.
申请公布号 US5072806(A) 申请公布日期 1991.12.17
申请号 US19880276015 申请日期 1988.11.25
申请人 MITSUBISHI PENCIL CO., LTD. 发明人 ODAJIMA, HIDEO
分类号 H04R7/02;H04R7/06 主分类号 H04R7/02
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