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Porous sound-absorbing board

YAMAGUCHI ZENZO / YAMAGIWA ICHIRO

A perforated sound-absorbing plate includes a perforated plate as a base material in which a large number of through holes are formed. A coating film is provided on an inner wall surface of the through hole, and a through-hole portion whose volume is smaller than a volume of the through hole is formed by the coating film.

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Porous sound-absorbing board

YAMAGUCHI ZENZO / YAMAGIWA ICHIRO

A perforated sound-absorbing plate includes a perforated plate as a base material in which a large number of through holes are formed. A coating film is provided on an inner wall surface of the through hole, and a through-hole portion whose volume is smaller than a volume of the through hole is formed by the coating film.

Porous sound-absorbing board

YAMAGUCHI ZENZO / YAMAGIWA ICHIRO

A perforated sound-absorbing plate includes a perforated plate as a base material in which a large number of through holes are formed. A coating film is provided on an inner wall surface of the through hole, and a through-hole portion whose volume is smaller than a volume of the through hole is formed by the coating film.

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Dokumentinformationen

Titel:

Porous sound-absorbing board

Beteiligte:

YAMAGUCHI ZENZO (Autor:in) / YAMAGIWA ICHIRO (Autor:in)

Erscheinungsdatum:

01.06.2021

Medientyp:

Patent

Format:

Elektronische Ressource

Sprache:

Englisch

Klassifikation:

IPC: E04B Allgemeine Baukonstruktionen , GENERAL BUILDING CONSTRUCTIONS / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES

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