Title:
防音ユニットおよび防音構造体
Document Type and Number:
Japanese Patent JP6673880
Kind Code:
B2
Abstract:
To provide a soundproof unit and a soundproof structure that have a function of selectively transmitting radio waves and also have a resonance type sound proof function as well.SOLUTION: A soundproof unit has a principal surface and the other surface other than the principal surface, and the principal surface has an opening part formed penetrating in a thickness direction, and at least a part of the principal surface including the opening part is made of metal. At least a part of the other surface is made of non-metal, and the principal surface and the other surface form a space, and the opening part is formed in such a shape that two arbitrary points on an edge of the opening part are present while a segment connecting the two arbitrary points is present on the principal surface not at the opening part. A soundproof structure is constituted by arranging a plurality of soundproof units.SELECTED DRAWING: Figure 1A
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Inventors:
Akihiko Otsu
Shinya Shirata
Shogo Yamazoe
Mihiro Sugawara
Shinya Shirata
Shogo Yamazoe
Mihiro Sugawara
Application Number:
JP2017161296A
Publication Date:
March 25, 2020
Filing Date:
August 24, 2017
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G10K11/16; G10K11/172
Domestic Patent References:
| JP2002164690A | ||||
| JP2002309789A | ||||
| JP2006125156A | ||||
| JP2015211115A | ||||
| JP671613U |
Attorney, Agent or Firm:
Haruko Sanwa
Hideaki Ito
Fumio Mitsuhashi
Hideaki Ito
Fumio Mitsuhashi