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:
Jun. 07, 1994
Filed:
Feb. 12, 1993
Hidetaka Shintaku, Nara, JP;
Hideo Nojima, Nara, JP;
Masayoshi Koba, Nara, JP;
Masaya Nagata, Soraku, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A copper substrate is immersed into a solution in which a Y-Ba-Cu-O series oxide superconducting fine powder is dispersed into an acetone solution and an electric field is applied thereto. A coating deposited on the copper substrate by electrophoresis is sintered with high temperature in vacuum or in an inert gas atmosphere and then subjected to heat-treatment for oxygen composition ratio in an atmosphere of oxygen or air under 500.degree. C. This method prevents occurrence of a CuO layer, which would conventionally be formed at an interface between a Y-Ba-Cu-O film and a Cu substrate disadvantageously, and moreover enables fabrication of superconducting coatings having satisfactory characteristics.