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Patent Searching and Data


Title:
EDGE FOR SPEAKER DIAPHRAGM AND METHOD FOR MANUFACTURING THE SAME
Document Type and Number:
WIPO Patent Application WO/2003/098967
Kind Code:
A1
Abstract:
An edge for a speaker diaphragm in which generation of distorted sound based on the partial resonance is eliminated while reducing unevenness of quality, variation of basic frequency (fo) is eliminated, resonance of the diaphragm is restrained by altering or modifying the flexibility and rigidity of the edge readily, or the frequency characteristics of a speaker can be altered by emphasizing the resonance, the product cost can be reduced while increasing the yield and the price of the speaker can be controlled while enhancing the quality.

Inventors:
TAKAHASHI YOSHIYUKI
TABATA SHINYA
MIZONE SHINYA
SHIMIZU TOSHIHIRO
SONE YUKIO
Application Number:
PCT/JP2003/006243
Publication Date:
November 27, 2003
Filing Date:
May 19, 2003
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
C O J CO LTD (JP)
International Classes:
H04R7/20; H04R7/18; H04R31/00; (IPC1-7): H04R7/18; H04R31/00
Foreign References:
JP2001197590A2001-07-19
JPH11308693A1999-11-05
JPH0819092A1996-01-19
Other References:
See also references of EP 1453352A4
Attorney, Agent or Firm:
Kai, Hirohito (Minami Ogi-machi Kita-k, Osaka-shi Osaka, JP)
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