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:
Nov. 16, 1999
Filed:
Mar. 21, 1997
Applicant:
Inventors:
Mitsuo Kimura, Aichi, JP;
Yukio Miyata, Aichi, JP;
Tomoya Koseki, Aichi, JP;
Takaaki Toyooka, Aichi, JP;
Fumio Murase, Aichi, JP;
Assignee:
Kawasaki Steel Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ;
U.S. Cl.
CPC ...
420 61 ; 420 57 ; 420 58 ; 420 67 ;
Abstract
A martensitic steel for a line pipe having excellent corrosion resistance and weldability is disclosed. The martensitic steel contains about: