| 摘要 |
PROBLEM TO BE SOLVED: To provide a diaphragm for sounding in which sound quality is hardly changed and high sound quality can be maintained for a long period of time. SOLUTION: A fiber sheet which hardly creeps and is comprised of at least one kind of fiber selected from the group of aramid fiber, glass fiber, carbon fiber, all aromatic polyester fiber, polybenzoxazole fiber and high-density polyethylene fiber, is stuck on a rear side of a diaphragm that is easy to creep, thereby manufacturing a diaphragm for sounding. COPYRIGHT: (C)2005,JPO&NCIPI
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