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:
Nov. 21, 1995
Filed:
Dec. 01, 1994
Kiyoshi Yamamoto, Tokyo, JP;
Nobuyuki Sugii, Tokyo, JP;
Koichi Kubo, Tokyo, JP;
Michiharu Ichikawa, Tokyo, JP;
Hisao Yamauchi, Tokyo, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Hitachi Ltd., Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Central Research Institute of Electric Power Industry, Tokyo, JP;
International Superconductivity Technology Center, Tokyo, JP;
Abstract
Disclosed is a method of manufacturing a thin film of an oxide superconductor represented by formula Sr.sub.1-x Nd.sub.x CuO.sub.2 on a substrate. The oxide superconductor has a tetragonal crystal structure, the lattice constant in a-axis falling within a range of between 0.385 nm and 0.410 nm, and the lattice constant in c-axis being an integer number of times as much as a level falling within a range of between 0.310 nm and 0.350 nm. The method includes the steps of forming by epitaxial growth a film of a crystal having lattice constants close to those of the crystal of said oxide superconductor on a substrate, and forming a thin film of the oxide superconductor of a tetragonal crystal structure represented by general formula (I) by a thin film-forming technique.