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:
Nov. 22, 2022
Filed:
Dec. 21, 2018
Applicant:
Nhk Spring Co., Ltd., Yokohama, JP;
Inventors:
Takeshi Suzuki, Kanagawa, JP;
Junichi Nakano, Kanagawa, JP;
Assignee:
NHK Spring Co., Ltd., Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22C 21/10 (2006.01); C22F 1/05 (2006.01); C22F 1/053 (2006.01); F16B 33/00 (2006.01); F16F 1/02 (2006.01); B60G 21/055 (2006.01); F16F 1/06 (2006.01); F16F 1/18 (2006.01);
U.S. Cl.
CPC ...
C22C 21/10 (2013.01); C22F 1/053 (2013.01); F16B 33/00 (2013.01); F16F 1/021 (2013.01); B60G 21/055 (2013.01); F16F 1/06 (2013.01); F16F 1/18 (2013.01); F16F 2224/0208 (2013.01); F16F 2228/007 (2013.01);
Abstract
An aluminum alloy according to the present invention includes 1.2% by mass to 4.0% by mass of copper, 4.0% by mass to 14.0% by mass of zinc, 0.5% by mass to 4.0% by mass of magnesium, 0.01% or less of silicon, and 0.01% or less of iron, with the balance containing aluminum and inevitable impurities, and has an average equivalent circle crystal grain size of 500 nm or less.