Title:
SPEAKER DIAPHRAGM, SPEAKER, AND PRODUCTION METHOD FOR SPEAKER DIAPHRAGM
Document Type and Number:
WIPO Patent Application WO/2017/130822
Kind Code:
A1
Abstract:
A speaker diaphragm comprising resin and a hollow glass member contained in the resin. In addition, a speaker comprising: said speaker diaphragm; a magnetic circuit; a frame joined to the magnetic circuit; and a voice coil having one end thereof joined to the diaphragm and having the other end thereof arranged inside a magnetic gap in the magnetic circuit.
Inventors:
ITANO TETSUSHI
TAKAGI SEIJI
ENDOU KENJI
NISHIMURA KAZUAKI
KUROZAWA MAKOTO
TAKAGI SEIJI
ENDOU KENJI
NISHIMURA KAZUAKI
KUROZAWA MAKOTO
Application Number:
PCT/JP2017/001636
Publication Date:
August 03, 2017
Filing Date:
January 19, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04R7/02; H04R31/00
Foreign References:
| JPH06178385A | 1994-06-24 | |||
| JPH06284496A | 1994-10-07 | |||
| JP2001145188A | 2001-05-25 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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