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:
Oct. 09, 2001
Filed:
Nov. 24, 1997
Applicant:
Inventors:
Yoshiharu Miyake, Susono, JP;
Yoshihisa Serizawa, Susono, JP;
Yukio Okochi, Susono, JP;
Tetsuya Suganuma, Nagoya, JP;
Hajime Kamio, Ihara-gun, JP;
Takayuki Tsuchida, Ihara-gun, JP;
Hiroshi Nagashima, Ihara-gun, JP;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
C22C 2/100 ;
U.S. Cl.
CPC ...
C22C 2/100 ;
Abstract
A high-strength aluminum alloy having good porthole extrudability is provided. It has a Vickers hardness Hv of not less than 40 as measured in a homogenized state created by heat treatment before extrusion and a Vickers hardness Hv of not less than 20 imparted by plastic working after the heat treatment.