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经营范围
发明名称
DIAPHRAGM FOR SPEAKERS
摘要
PURPOSE:To obtain a diaphragm of high specific elastic modulus without any difficulty in workability in molding by covering the surface of a metal porous material having high voids with carbon by a chemical vapor plating method.
申请公布号
JPS542113(A)
申请公布日期
1979.01.09
申请号
JP19770068557
申请日期
1977.06.07
申请人
SANYO ELECTRIC CO;TOKYO SANYO ELECTRIC CO
发明人
HIROSE SHINTAROU;MIYOSHI YASUSHI;HIGUCHI MASAHIRO;NISHIKAWA YOSHINOBU
分类号
H04R7/02
主分类号
H04R7/02
代理机构
代理人
主权项
地址
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