Bone-conduction speaker
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 31, 2000
Grant Date -
N/A
app pub date -
Jun 8, 1999
filing date -
Jun 8, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A yoke 1 having a center magnetic pole 2 around which a voice coil is wound is provided, the yoke 1 is extended in four directions, magnets 4 are disposed on two parts 7 and 7 facing to each other among the extensions, respectively, and diaphragm fixing sections 6 are erected on the other two parts 8 and 8 and a diaphragm is fixed on the diaphragm fixing section 6.
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Family
International Classification(s)
Cited Art Landscape
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