Title:
SPEAKER COMPONENT, SPEAKER USING SAME, ELECTRONIC APPARATUS, AND MOVING MEANS
Document Type and Number:
WIPO Patent Application WO/2012/001926
Kind Code:
A1
Abstract:
The disclosed speaker diaphragm and speaker voice coil bobbin are configured containing at least 30 wt% of a metal hydroxide by means of a paper making method. As a result, stiffness is increased and a favorable sound quality is achieved by means of the effect of the admixture of metal hydroxide. Furthermore, it is possible to impart fire resistance without bringing about an increase in cost or an increase in weight of the paper-made diaphragm or voice coil bobbin.
Inventors:
JIN YOHEI
KAJIHARA YOSHIMICHI
KAJIHARA YOSHIMICHI
Application Number:
PCT/JP2011/003610
Publication Date:
January 05, 2012
Filing Date:
June 24, 2011
Export Citation:
Assignee:
PANASONIC CORP (JP)
JIN YOHEI
KAJIHARA YOSHIMICHI
JIN YOHEI
KAJIHARA YOSHIMICHI
International Classes:
H04R7/02
Domestic Patent References:
| WO2007097206A1 | 2007-08-30 |
Foreign References:
| JPH05339895A | 1993-12-21 | |||
| JP2842096B2 | 1998-12-24 | |||
| JPH04185799A | 1992-07-02 | |||
| JPS5324827A | 1978-03-08 | |||
| JPH07146683A | 1995-06-06 | |||
| JP2002300691A | 2002-10-11 | |||
| JP2002300697A | 2002-10-11 |
Attorney, Agent or Firm:
NAITO, Hiroki et al. (JP)
Hiroki Naito (JP)
Hiroki Naito (JP)
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Claims: