发明名称 Speaker diaphragm and process for producing the same.
摘要 <p>The present invention relates to a speaker diaphragm made of a thin carbon plate, as well as to a process for producing the diaphragm. More particularly, the present invention provides a speaker diaphragm made of a thin carbon plate, capable of reproducing a music source with good fidelity, as well as a process for producing said diaphragm.</p>
申请公布号 EP0409144(A1) 申请公布日期 1991.01.23
申请号 EP19900113612 申请日期 1990.07.16
申请人 NISSHINBO INDUSTRIES, INC. 发明人 SAITO, KAZUO, C/O NISSHINBO INDUSTRIES, INC.
分类号 C01B31/02;C04B35/524;H04R7/02;H04R31/00 主分类号 C01B31/02
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