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. 16, 1999
Filed:
Dec. 30, 1997
Tatsumi Kimura, Okayama, JP;
Kiyoshi Uchida, Okayama, JP;
Fumimaru Kawabata, Okayama, JP;
Keniti Amano, Okayama, JP;
Takanori Okui, Okayama, JP;
Kawasaki Steel Corporation, , JP;
Abstract
A heavy-wall steel having a flange thickness of about 40 mm or more and possessing excellent strength, toughness, weldability, and seismic resistance capable of being used for structure members such as columns and beams of high-rise buildings. The heavy-wall steel has a tensile strength of about 490-690 MPa, a yield ratio of about 80% or less, and Charpy absorbed energy at 0.degree. C. of about 27 J or more at the center in terms of thickness of the flange portion in each of the rolling direction, the direction perpendicular to the rolling direction, and the plate-thickness direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile