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:
Mar. 20, 2012
Filed:
Jul. 26, 2007
Toshihiko Koseki, Tokyo, JP;
Toshio Suzuki, Tokyo, JP;
Toyonobu Yoshida, Tokyo, JP;
Junya Inoue, Tokyo, JP;
Mitsuyuki Tanaka, Tokyo, JP;
Toshihiko Koseki, Tokyo, JP;
Toshio Suzuki, Tokyo, JP;
Toyonobu Yoshida, Tokyo, JP;
Junya Inoue, Tokyo, JP;
Mitsuyuki Tanaka, Tokyo, JP;
The University of Tokyo, Tokyo, JP;
Abstract
Disclosed is a multilayered steel composite which compatibly achieves properties such as strength and ductility that are incompatible in conventional steels and is excellent in strength, ductility, weldability, toughness and fatigue strength. Also, disclosed is a method for producing the multilayered steel which is produced by rolling with least two kinds of steels having different chemical compositions and microstructure or different mechanical properties, in combination.