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:
Sep. 27, 2011
Filed:
Dec. 01, 2006
Yuichi Futamura, Kakogawa, JP;
Michitaka Tsunezawa, Kakogawa, JP;
Masaaki Miura, Kakogawa, JP;
Hiroshi Irie, Kakogawa, JP;
Takatoshi Yoshida, Kakogawa, JP;
Masafumi Shimizu, Kakogawa, JP;
Yuichi Futamura, Kakogawa, JP;
Michitaka Tsunezawa, Kakogawa, JP;
Masaaki Miura, Kakogawa, JP;
Hiroshi Irie, Kakogawa, JP;
Takatoshi Yoshida, Kakogawa, JP;
Masafumi Shimizu, Kakogawa, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
Disclosed is a high-strength hot dip galvannealed steel sheet having high powdering resistance produced by employing such a constitution that a Fe—Zn alloy plated layer is provided on at least one side of a basis steel sheet and a region in which Al (atomic %)/Zn (atomic %)≧0.10 is present in a thickness of 300 Å or more from the surface of the plated layer along the depth direction of the plated layer. Also disclosed is a hot dip galvannealed steel sheet whose formability is greatly improved by optionally specifying chemical composition and structure of the basis steel sheet.