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:
Sep. 22, 2026
Filed:
Jul. 31, 2024
Kabushiki Kaisha Toshiba, Tokyo, JP;
Keiko Albessard, Yokohama Kanagawa, JP;
Tomoko Eguchi, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Kawasaki, JP;
Abstract
A connection structure of a superconducting layer according to an embodiment includes: a first superconducting layer; a second superconducting layer; and a connection layer provided between the first superconducting layer and the second superconducting layer and including a crystal region containing a rare earth element (RE), barium (Ba), copper (Cu), and oxygen (O), and a void. In a cross section perpendicular to a surface of the first superconducting layer, the crystal region includes a path extending from the first superconducting layer to the second superconducting layer. The path includes a plurality of narrow portions, and a width of a minimum narrow portion having a minimum width among the narrow portions is equal to or more than 300 nm. In the cross section, an area ratio of the void is equal to or more than 30% and equal to or less than 70%.