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:
Jun. 01, 2021
Filed:
Nov. 18, 2016
Applicant:
Kobe Steel, Ltd., Hyogo, JP;
Inventors:
Zenzo Yamaguchi, Hyogo, JP;
Ichiro Yamagiwa, Hyogo, JP;
Assignee:
KOBE STEEL, LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/86 (2006.01); G10K 11/172 (2006.01); G10K 11/168 (2006.01); E04B 1/84 (2006.01);
U.S. Cl.
CPC ...
E04B 1/86 (2013.01); G10K 11/168 (2013.01); G10K 11/172 (2013.01); E04B 2001/8461 (2013.01); E04B 2001/8495 (2013.01);
Abstract
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.