Voice coil assembly, loudspeaker using the same, and method for producing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 7, 2010
Grant Date -
May 7, 2009
app pub date -
Oct 28, 2008
filing date -
Nov 2, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A voice coil assembly capable of realizing a flat thin loudspeaker having a high efficiency, reduced divided vibrations, a flat frequency response, and reduced operation defects. The voice coil assembly includes a plurality of internal-winding voice coils, each including a rectangular bobbin having a rectangular cross section and defining a rectangular space therein and an internal rectangular coil fixed to an inner wall surface of the rectangular bobbin defining the rectangular space, wherein an outer wall surface of the rectangular bobbin of one internal-winding voice coil is adhered and fixed to an outer wall surface of the rectangular bobbin of another internal-winding voice coil.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully