The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2022
Filed:
Apr. 16, 2019
Applicant:
Nitto Denko Corporation, Osaka, JP;
Inventors:
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/168 (2006.01); G10K 11/16 (2006.01); F02B 77/13 (2006.01); B32B 5/14 (2006.01); D04H 3/004 (2012.01); B60R 13/08 (2006.01); B32B 5/26 (2006.01); B32B 7/02 (2019.01); B32B 37/00 (2006.01); B62D 29/04 (2006.01); E04B 1/84 (2006.01); B62D 25/04 (2006.01);
U.S. Cl.
CPC ...
G10K 11/168 (2013.01); B32B 5/145 (2013.01); B32B 5/26 (2013.01); B32B 7/02 (2013.01); B32B 37/00 (2013.01); B60R 13/08 (2013.01); B62D 25/04 (2013.01); B62D 29/04 (2013.01); D04H 3/004 (2013.01); E04B 1/8404 (2013.01); F02B 77/13 (2013.01); G10K 11/16 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2262/02 (2013.01); B32B 2262/0246 (2013.01); B32B 2262/0261 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/0284 (2013.01); B32B 2262/0292 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2307/102 (2013.01); B32B 2307/732 (2013.01); E04B 2001/8461 (2013.01);
Abstract
A soundproof structure includes a porous fibrous body that attenuates incident sound waves, wherein the fibrous body is formed of fibers having an average fiber diameter of 0.5 μm or more and 5 μm or less, and includes a surface layer on which the sound waves are incident and a propagation layer that is stacked with the surface layer and that propagates the sound waves from the surface layer, and wherein the propagation layer includes a high density layer having a density higher than a density of the surface layer.