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. 29, 1997
Filed:
Dec. 21, 1994
Kazuyuki Isawa, Sendai, JP;
Ayako Yamamoto, Minamiashigara, JP;
Seiji Adachi, Fujimi, JP;
Makoto Itoh, Tokyo, JP;
Hisao Yamauchi, Nagareyama, JP;
International Superconductivity Technology Center, Tokyo, JP;
Tohoku Electric Power Company, Inc., Miyagi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A method of manufacturing an oxide superconductor, including the steps of mixing oxide materials of the metals contained in an oxide superconductor represented by HgBa.sub.2 Ca.sub.2 Cu.sub.3 O.sub.8+y to prepare a powder mixture of the composition noted above, molding the powder mixture to prepare a molded body of a desired shape, and applying a heat treatment to the molded body within a hermetic container at a temperature sufficient for bringing about a solid phase reaction of the oxide materials for at least 20 hours. Also provided is a method of manufacturing an oxide superconductor, including the steps of mixing at least one additive element selected from the group consisting of Pb, Bi, Tl, Au, Pt, Ag, Cd and In with oxide materials of the metals contained in a Hg-series 1223 type oxide superconductor to prepare a powder mixture, molding the powder mixture to prepare a molded body of a desired shape, and applying a heat treatment to the molded body within a hermetic container at a temperature sufficient for bringing about a solid phase reaction of the oxide materials for at least 10 hours.