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. 02, 2026
Filed:
Jun. 16, 2023
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
Forming an oxide superconducting film includes a step of laminating a superconducting layer of an oxide superconducting material. The step of laminating the superconducting layer includes a pyrolyzed film forming step, a polycrystallization step, and a sintering heat treatment step. The pyrolyzed film forming step includes a coating film forming step and a pyrolyzing heat treatment step. In the coating film forming step, a solution of a metal organic compound is applied to form a coating film. In the pyrolyzing heat treatment step, the coating film is heat-treated to thermally decompose an organic component of the metal organic compound so as to form a pyrolyzed film. In the polycrystallization step, the pyrolyzed film is heat-treated to form a polycrystal layer containing polycrystals of the oxide superconducting material. In the sintering heat treatment step, the polycrystal layer is heat-treated to orient the polycrystals so as to form the superconducting layer.