Title:
LOUDSPEAKER DAMPER, MANUFACTURING METHOD THEREOF, AND LOUDSPEAKER AND ELECTRONIC DEVICE USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/078008
Kind Code:
A1
Abstract:
There is provided a loudspeaker damper realizing a high input resistance to follow a large amplitude of the damper caused by a large input without causing partially an interfacial separation and a crack of a resin layer arranged on the surface of a damper substrate. A manufacturing method of the damper and a loudspeaker and an electronic device using the damper are also provided. The loudspeaker damper substrate is formed by a material impregnated by a thermosetting resin added by 2-20 wt% of flexibility adding agent and hardened by heat.
Inventors:
OKAZAKI MASATOSHI
MIMURA KAZUYOSHI
MIZONE SHINYA
SUMIYAMA MASAHIDE
MIMURA KAZUYOSHI
MIZONE SHINYA
SUMIYAMA MASAHIDE
Application Number:
PCT/JP2006/300936
Publication Date:
July 27, 2006
Filing Date:
January 23, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
OKAZAKI MASATOSHI
MIMURA KAZUYOSHI
MIZONE SHINYA
SUMIYAMA MASAHIDE
OKAZAKI MASATOSHI
MIMURA KAZUYOSHI
MIZONE SHINYA
SUMIYAMA MASAHIDE
International Classes:
H04R31/00; H04R9/02
Foreign References:
| JPS50117411A | 1975-09-13 | |||
| JPS6443000A | 1989-02-15 | |||
| JP2003078993A | 2003-03-14 | |||
| JPS5787698A | 1982-06-01 | |||
| JPH05168093A | 1993-07-02 | |||
| JP2000080179A | 2000-03-21 |
Other References:
See also references of EP 1843629A4
Attorney, Agent or Firm:
Iwahashi, Fumio c/o Matsushita Electric Industrial Co. Ltd. (1006, Oaza Kadoma, Kadoma-sh, Osaka 01, JP)
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