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. 12, 1991
Filed:
Nov. 27, 1989
Applicant:
Inventors:
Tohei Ototani, Tokyo, JP;
Toru Degawa, Kurashiki, JP;
Kanicki Kusumoto, Inagi, JP;
Makoto Ebata, Tokyo, JP;
Assignees:
Mitsui Engineering and Ship Building Co., Ltd., Tokyo, JP;
Metal Research Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
75564 ; 75567 ; 75570 ; 420 85 ; 420129 ;
Abstract
A method of producing an alloy containing at least one major ingredient selected from the group consisting of iron (Fe), cobalt (Co), and Nickel (Ni) and having low contents of sulphur, oxygen, and nitrogen, comprises steps of: