| 摘要 |
PROBLEM TO BE SOLVED: To provide a dust cap for a speaker used for acoustic apparatuses, the speaker, and electronic apparatus and a device for improving the sound quality and the articulation, such as enhanced sound pressure level at high pitch band. SOLUTION: The dust cap for the speaker is configured by paper-making a material including bamboo fibers of one year-old or more whose beating degree is decreased up to a microfibril state so as to improve the rigidity of the dust cap, thereby improving the sound quality of the speaker using the dust cap and improving the articulation, such as enhanced sound pressure level at high pitch band. COPYRIGHT: (C)2007,JPO&INPIT
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