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:
Feb. 07, 2006
Filed:
May. 22, 2003
Shin-ichi Kobayashi, Osaka, JP;
Takeshi Kato, Osaka, JP;
Shin-ichi Kobayashi, Osaka, JP;
Takeshi Kato, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
The inventive method of manufacturing an oxide superconducting wire comprises a step (S, S) of preparing a wire formed by covering raw material powder of an oxide superconductor with a metal and a step (S, S) of heat-treating the wire in a pressurized atmosphere, and the total pressure of the pressurized atmosphere is at least 1 MPa and less than 50 MPa. Thus, formation of voids between oxide superconducting crystals and blisters of the oxide superconducting wire is suppressed while the partial oxygen pressure can be readily controlled in the heat treatment, whereby the critical current density can be improved.