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:
Jul. 10, 1979
Filed:
Jan. 13, 1978
Applicant:
Inventors:
Shigeaki Maruhashi, Tokuyama, JP;
Yoshio Kobayashi, Tokuyama, JP;
Assignee:
Nisshin Steel Co. Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75 49 ; 75 59 ; 75 60 ;
Abstract
A process for producing an ultra-low carbon stainless steel, which comprises preparing a molten metal of low carbon stainless steel by means of top-blowing of oxygen onto the surface of said molten metal contained in a vessel under reduced pressure, and while maintaining said molten metal under reduced pressure, blowing a mixed gas of an oxidizing gas and an inert gas into the low carbon stainless steel molten metal through a lance immersed in the melt.
Maruhashi, Shigeaki. (1979). Process for producing ultra-low carbon stainless steel (U.S. Patent No. 4160664). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4160664
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile