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:
Feb. 14, 2023
Filed:
Jan. 23, 2019
Applicant:
Japan Aerospace Exploration Agency, Tokyo, JP;
Inventors:
Tohru Hirai, Tokyo, JP;
Mitsuhiro Murayama, Tokyo, JP;
Kazuomi Yamamoto, Tokyo, JP;
Yasushi Ito, Tokyo, JP;
Kentaro Tanaka, Tokyo, JP;
Takehisa Takaishi, Tokyo, JP;
Yuzuru Yokokawa, Tokyo, JP;
Assignee:
Japan Aerospace Exploration Agency, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 7/00 (2006.01); B64C 25/00 (2006.01); B64C 25/34 (2006.01);
U.S. Cl.
CPC ...
B64C 25/001 (2013.01); B64C 7/00 (2013.01); B64C 25/34 (2013.01); B64C 2025/003 (2013.01); B64C 2230/08 (2013.01); B64C 2230/14 (2013.01);
Abstract
A noise reduction apparatus, an aircraft, and a noise reduction method capable of increasing the amount of noise reduction are provided. The noise reduction apparatusincludes a porous platedisposed to face a fluid flow, the porous plateincluding a bend regionbent toward an upstream side of the fluid flow. The bend regionis provided at the end portionof the porous plate, and has a concave R-shape on an upstream side of the fluid flow.