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. 13, 1993
Filed:
Dec. 13, 1991
Applicant:
Inventors:
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01B / ; H01L / ;
U.S. Cl.
CPC ...
505-1 ; 505704 ; 427 62 ; 29599 ; 1741251 ; 419 20 ; 419 22 ;
Abstract
The present invention relates to a sintered ceramic superconducting wire which is made by placing powders of metal oxides or a mixture of powders of metal oxides and metal carbonates, said oxides and said carbonates each having an oxidation potential higher than or equal to that of copper, in a metallic cylinder formed from a high temperature oxidation-resistant material, and drawing the packed cylinder to a final size and sintering said drawn packed cylinder in air, wherein said cylinder is removed prior or subsequent to the final step of sintering.