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:
Apr. 17, 1984
Filed:
Sep. 09, 1982
Applicant:
Inventors:
Hiroshi Katoh, Chiba, JP;
Hiromi Toyota, Chiba, JP;
Kazuo Koyama, Chiba, JP;
Kunihiko Komiya, Chiba, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 / ; 148 123 ; 148 36 ;
Abstract
Disclosed are processes for producing cold rolled steel sheets and strips having excellent press formability and ageing property by a continuous annealing method, in which specific heating cycles are adopted in combination with steel compositions with lowered phosphorus contents.