| 发明名称 |
PRODUCTION OF DIAPHRAGM FOR SPEAKERS |
| 摘要 |
PURPOSE:To increase the job efficiency by laminating a back layer and a face layer manufactured separately in a wet state so as to be suitable to mass production of high stiffness cone type diaphragm of especially low density and to press-form the entire diaphragm body. |
| 申请公布号 |
JPS53135321(A) |
申请公布日期 |
1978.11.25 |
| 申请号 |
JP19770050220 |
申请日期 |
1977.04.28 |
| 申请人 |
SONY CORP;DAIFUKU SEISHI KK |
发明人 |
UGAJI MASAKATA;FUJIHIRA MASAO;SOUBE YOSHIYUKI;MIZUNO TOYOHIKO |
| 分类号 |
H04R7/02;H04R7/12;H04R31/00 |
主分类号 |
H04R7/02 |
| 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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