Speaker apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 21, 2010
Grant Date -
Oct 26, 2006
app pub date -
Mar 31, 2006
filing date -
Mar 31, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A speaker apparatus comprises a dome type diaphragm comprising: a reinforcing rib; and an edge damper integrally formed with an outer periphery of the dome type diaphragm; and a frame supporting the dome type diaphragm through the edge damper. The reinforcing rib comprises at least one of a groove portion and a ridge portion. The reinforcing rib is extended radially with respect to the dome center portion from a vicinity of a dome center portion of the dome type diaphragm to a dome outer periphery side.
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