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Title:
BUILDING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/085360
Kind Code:
A1
Abstract:
Building material (1) faces a first space and comprises a flat structure (14) in which an opening (15, 16) is formed, a first speaker (21) that is disposed in a position opposite to the opening (15, 16) in a second space on the side opposite to the first space across the structure (14), and a solid mesh structure (30) that is disposed between the structure (14) and the first speaker (21) and that is made from a fibrous material intertwined into a three-dimensional shape.

Inventors:
KAWAMURA AKIHISA
SAIKI SHUJI
TAKAYAMA SATOSHI
Application Number:
PCT/JP2020/040043
Publication Date:
May 06, 2021
Filing Date:
October 26, 2020
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
E04C2/52; D04H3/14; H04R1/02
Foreign References:
JPS52154238U1977-11-22
JP2006093809A2006-04-06
JPS5623979Y21981-06-05
JPS492192Y11974-01-19
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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