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. 24, 2014
Filed:
Dec. 27, 2011
Koutarou Inose, Yokohami, JP;
Shiro Saito, Yokohama, JP;
Junko Kambayashi, Yokohama, JP;
Hiroto Yamaoka, Yokohama, JP;
Tomohiro Sugino, Tokyo, JP;
Isao Kawaguchi, Yokohama, JP;
Koutarou Inose, Yokohami, JP;
Shiro Saito, Yokohama, JP;
Junko Kambayashi, Yokohama, JP;
Hiroto Yamaoka, Yokohama, JP;
Tomohiro Sugino, Tokyo, JP;
Isao Kawaguchi, Yokohama, JP;
IHI Corporation, , JP;
Abstract
A method of forming stiffened plate by welding a plurality of stiffener materials and a steel plate, so that closed cross-sectional structures are secured onto a surface of the steel plate. The stiffener materials are joined to the steel plate as a result of edge portions of the stiffener materials which are in contact with the steel plate by being laser welded at a predetermined welding speed as a result of a laser having a predetermined output being irradiated from a predetermined direction thereon from the external side of the closed cross-sectional structures. Accordingly, it is possible to achieve an improvement in the weld quality when welding stiffener materials onto a steel plate, and to achieve an improvement in fatigue strength.