Electret diaphragm and speaker using the same

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United States of America Patent

PATENT NO 8503702
APP PUB NO 20110255720A1
SERIAL NO

12909842

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Abstract

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An electret diaphragm and a speaker using the same are provided. The electret diaphragm includes an electret layer, a bonding layer adhered to a surface of the electret layer, and an aluminum (Al) electrode layer adhered on the bonding layer. The electret layer at least includes ethylene group polymer. A material of the bonding layer is ethylene-ethyl-acrylate (EEA) or ethylene-vinyl acetate (EVA).

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Patent Owner(s)

Patent OwnerAddress
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE195 SEC 4 CHUNG HSING RD CHUTUNG HSINCHU 310401
NATIONAL TAIWAN UNIVERSITYNO 1 SEC 4 ROOSEVELT ROAD DA’AN DIST TAIPEI CITY 10617

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chan, Yi-Jen Taoyuan County, TW 23 215
Chen, Ming-Daw Hsinchu, TW 45 742
Kao, Che-I Tainan County, TW 18 180
Ko, Wen-Ching Kaohsiung, TW 16 127
Lee, Chih-Kung Taipei, TW 89 1103
Leu, Ing-Yih Taipei, TW 2 41
Liou, Chang-Ho Changhua County, TW 38 340
Tseng, Chien-Kai Taipei, TW 4 22

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