Being the electronic equipment and the paper making diaphragm for the device null speaker which use the paper making diaphragm for the speaker and the speaker

摘要

PROBLEM TO BE SOLVED: To provide a paper-made diaphragm for speaker in which material rigidity of the diaphragm is improved to improve sound quality as a speaker and increase output and reliability.;SOLUTION: The paper-made diaphragm for speaker is configured by making paper material in which bamboo fibers, obtained from bamboos of one year old or more, with freeness reduced into microfibril state is mixed with Philippines silk paper or Manila hemp of natural long fibers. Thus, rigidity of the diaphragm is improved, thereby improving sharpness such as improving sound quality of a speaker using the diaphragm or improving a sound pressure level of higher frequency.;COPYRIGHT: (C)2008,JPO&INPIT