| 发明名称 |
ACOUSTIC DIAPHRAGM MADE OF WOODY MATERIAL |
| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an acoustic diaphragm made of a woody material provided with properties required for an acoustic diaphragm by using a flow molding technology of a woody material.SOLUTION: By flow molding by pressing a slice W of a woody material impregnated with a synthetic resin between metal molds D1, D2, the acoustic diaphragm may be made to be thin and high density.</p> |
| 申请公布号 |
JP2015095819(A) |
申请公布日期 |
2015.05.18 |
| 申请号 |
JP20130235161 |
申请日期 |
2013.11.13 |
| 申请人 |
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL & TECHNOLOGY;CHIYODA KOGYO CO LTD |
发明人 |
SEKI MASAKO;MIKI TSUNEHISA;SHIGEMATSU KAZUNORI;KANAYAMA KOZO;IWAWAKI KAZUTOMO;YAMADA MITSUO;YAMADA TETSUYA |
| 分类号 |
H04R7/02;H04R7/12 |
主分类号 |
H04R7/02 |
| 代理机构 |
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