Title:
OSCILLATORY COMPONENT FOR LOUDSPEAKERS, LOUDSPEAKER COMPRISING SAME, AND MOBILE DEVICE EQUIPPED WITH SAID LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2018/008347
Kind Code:
A1
Abstract:
This oscillatory component for loudspeakers has a base layer, an intermediate layer and a coating layer. The base layer has a front surface and a back surface, while having a first density and being configured from paper that is composed of a plurality of fibers. The intermediate layer has a first surface, which is bonded to the front surface of the base layer, and a second surface, which is on the reverse side of the first surface, and has a second density that is higher than the first density, while containing a plurality of cellulose fibers as the main component. The coating layer is provided on the second surface of the intermediate layer, and contains an inorganic powder that is configured of a plurality of inorganic fine particles.
Inventors:
SHIBUYA TOMONORI
TAKAHASHI YOSHIYUKI
NAKAMURA NOBUO
DAN TAKAYUKI
ITANO TETSUSHI
TAKAHASHI YOSHIYUKI
NAKAMURA NOBUO
DAN TAKAYUKI
ITANO TETSUSHI
Application Number:
PCT/JP2017/022044
Publication Date:
January 11, 2018
Filing Date:
June 15, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04R7/02; H04R1/02
Domestic Patent References:
| WO2014132393A1 | 2014-09-04 | |||
| WO2015011903A1 | 2015-01-29 |
Foreign References:
| JPH03254598A | 1991-11-13 |
Other References:
See also references of EP 3457710A4
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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