发明名称
摘要 PURPOSE:To increase the elasticity, by forming the diaphragm plate for speaker through the vapor-deposit aluminum layer on one side of the high sensity polyethylene sheet molten including carbon fiber. CONSTITUTION:High density polyethylene fiber and carbon fiber are mixed, and after aluminum is vapor deposited on one side of this sheet, the sheet is heated and the high density polyethylene fiber constituting the sheet is molten and formed into the dome shape.
申请公布号 JPS5931277(B2) 申请公布日期 1984.08.01
申请号 JP19800052066 申请日期 1980.04.18
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 NIIGUCHI HIROTOSHI;YAMAMOTO TOORU;YASHIRO MITSURU
分类号 H04R7/02;B32B15/14;H04R7/12;H04R31/00 主分类号 H04R7/02
代理机构 代理人
主权项
地址