| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To ensure excellent sound quality and highly accurate characteristics and sound by a dust cap for speaker used in an acoustic apparatus, and the speaker. <P>SOLUTION: A dust cap combining the advantages of excellent sound quality and a high degree-of-freedom in physical value setting of a dust cap and the advantages of a resin material that moisture-proof reliability and strength can be ensured, appearance is excellent, and productivity and dimensional stability can be enhanced is materialized by configuring the dust cap for speaker by injection molding or sheet forming a material mixing a resin material and a material produced by carbonizing bamboo fibers miniaturized to microfibril state. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
