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. 07, 2011
Filed:
Aug. 03, 2006
Tamako Ariga, Kawasaki, JP;
Takeshi Yokota, Kawasaki, JP;
Akio Kobayashi, Kawasaki, JP;
Kazuhiro Seto, Kawasaki, JP;
Tamako Ariga, Kawasaki, JP;
Takeshi Yokota, Kawasaki, JP;
Akio Kobayashi, Kawasaki, JP;
Kazuhiro Seto, Kawasaki, JP;
JFE Steel Corporation, Tokyo, JP;
Abstract
A high tensile steel sheet having 980 MPa or higher tensile strength with excellent elongation and stretch-flange formability, suitable for the press-forming of complex cross sectional shape such as automobile parts, is manufactured by adjusting the steel to consist essential of a ferrite single phase structure, to precipitate carbide containing Ti, Mo, and V, of smaller than 10 nm of average particle size, in dispersed state, and to have an average composition of the carbide containing Ti, Mo, and V satisfying [V/(Ti+Mo+V)≧0.3 (atomic ratio].