ELECTRET CONDENSER MICROPHONE

PROBLEM TO BE SOLVED: To provide an electret condenser microphone of which the number of part items is reduced and the assembling accuracy is improved. SOLUTION: The electret condenser microphone is formed by stacking a back electrode board having an electret layer formed on a back electrode and a v...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TAKAYAMA TORAHOSHI, TANABE AKIHISA
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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