PIEZOELECTRIC VIBRATION DEVICE, SPEAKER UNIT, AND EARPHONE

A piezoelectric vibration device includes a frame having an elongated shape, a first vibration plate supported by the frame and having an elongated shape elongated in a longitudinal direction of the frame, and a piezoelectric layer arranged on the first vibration plate.

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Bibliographische Detailangaben
1. Verfasser:	EGUCHI, Takahiro
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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Beschreibung
Zusammenfassung:	A piezoelectric vibration device includes a frame having an elongated shape, a first vibration plate supported by the frame and having an elongated shape elongated in a longitudinal direction of the frame, and a piezoelectric layer arranged on the first vibration plate.