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:
Dec. 29, 1998
Filed:
Feb. 26, 1997
Applicant:
Inventors:
Takashi Sekita, Okayama, JP;
Taro Yahiro, Okayama, JP;
Saiji Matsuoka, Okayama, JP;
Toshio Fujimura, Okayama, JP;
Takemi Yamamoto, Okayama, JP;
Masahiko Morita, Okayama, JP;
Osamu Furukimi, Okayama, JP;
Arata Ueda, Okayama, JP;
Assignee:
Kawasaki Steel Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ; C21D / ; C22C / ; C22C / ;
U.S. Cl.
CPC ...
420 92 ; 420 93 ; 75 1064 ; 75508 ; 148541 ; 148546 ;
Abstract
Steel having excellent workability and deep drawability is produced by an electric furnace-vacuum degassing process. The steel has a composition which comprises about: