发明名称 |
PRODUCTION OF ACOUSTIC DIAPHRAGM UNIT |
摘要 |
PURPOSE:To enhance the using efficiency of a tension applying device by temporarily fixing an acoustic diaphragm under the condition, in which a tension is applied to the frame, and by cutting the diaphragm, after a plurality of rings are adhered thereto, thereby to produce an acoustic diaphragm unit. |
申请公布号 |
JPS5440628(A) |
申请公布日期 |
1979.03.30 |
申请号 |
JP19770107581 |
申请日期 |
1977.09.06 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
IBARAKI SATORU;YAMAMOTO HIROSHI |
分类号 |
H04R19/00;(IPC1-7):04R19/00 |
主分类号 |
H04R19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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