Speaker diaphragm, and speaker and handheld terminal device using said speaker diaphragm

A speaker diaphragm includes a body vibrating to generate a sound, an edge fusion-bonded to an outer circumference portion of the body, a projection provided on an upper surface of the edge, and a gasket provided on a lower surface of the edge. The edge is made of material different from that of the...

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description A speaker diaphragm includes a body vibrating to generate a sound, an edge fusion-bonded to an outer circumference portion of the body, a projection provided on an upper surface of the edge, and a gasket provided on a lower surface of the edge. The edge is made of material different from that of the body. The projection is made of material identical to that of the edge. The gasket is made of material identical to that of the body. A speaker including the diaphragm has waterproof property by itself.
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subjects DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
title Speaker diaphragm, and speaker and handheld terminal device using said speaker diaphragm
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