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. 06, 1990
Filed:
Mar. 31, 1988
Applicant:
Inventors:
Kazuhisa Yamauchi, Osaka, JP;
Kazuya Ohmatsu, Osaka, JP;
Tetsuya Ishida, Itami, JP;
Tomoji Gotoh, Itami, JP;
Syuji Yazu, Itami, JP;
Tetsuji Jodai, Itami, JP;
Assignee:
Sumitomo Electric Inc. Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01B / ;
U.S. Cl.
CPC ...
505-1 ; 427 62 ; 427 63 ; 29599 ; 29 3 / ; 29 3 / ; 1741251 ; 505740 ;
Abstract
A powder-in-tube method of producing an oxide superconduction wire is disclosed in which a preformed copper oxide superconducting powder is continuously filled into a tube precursor having a U shape cross-section formed from a long strip of metal material. The tube precursor is formed into a tube by bending and welding. The resulting tube is drawn to a reduced cross-section and further heated to sinter the packed powder to form the finished oxide superconducting wire.