Speaker apparatus and manufacturing method thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 29, 2002
Grant Date -
Nov 22, 2001
app pub date -
Mar 24, 1998
filing date -
Mar 25, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A speaker apparatus includes a frame having a magnetic circuit, a voice coil bobbin installed in the frame to be magnetically coupled to the magnetic circuit, and a diaphragm movably installed in the frame and fixed to the voice coil bobbin so as to be driven by activating the magnetic circuit. The diaphragm has a positioning portion that had been used for securing the diaphragm relative to the magnetic circuit during an installation of the diaphragm in the frame.
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