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. 08, 1994
Filed:
Apr. 27, 1993
Kanegafuchi Chemical Industry Co., Ltd., Osaka, JP;
Matsushita Electric Inductris Co., Ltd., Osaka, JP;
NEC Corporation, Tokyo, JP;
Nippon Mining Co., Ltd., Tokyo, JP;
Nippon Steel Corporation, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Tosoh Corporation, Yamaguchi, JP;
Toyo Boseki Kabushiki Kaisha, Osaka, JP;
Seisan Kaihatsu Kagaku Kenkyusho, Kyoto, JP;
Ube Industries, Ltd., Yamaguchi, JP;
Abstract
A process for forming a single crystal superconducting LnA.sub.2 Cu.sub.3 O.sub.7-x film, wherein Ln is at least one rare earth element and A is at least one alkaline earth element, is disclosed, which comprises simultaneously evaporating Ln, A and Cu in an atomic ratio of about 1:2:3 from discrete evaporation sources of Ln, A and Cu onto a heated substrate in a vacuum vessel while blowing an oxygen gas onto the substrate to form an oxygen-containing atmosphere, thereby forming the single crystal superconducting film on the substrate.