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:
Aug. 04, 2009
Filed:
Feb. 03, 2006
Kazuhide Tanaka, Hitachi, JP;
Masaya Takahashi, Hitachi, JP;
Michiya Okada, Mito, JP;
Hiroaki Kumakura, Tsukuba, JP;
Hitoshi Kitaguchi, Tsukuba, JP;
Kazuhide Tanaka, Hitachi, JP;
Masaya Takahashi, Hitachi, JP;
Michiya Okada, Mito, JP;
Hiroaki Kumakura, Tsukuba, JP;
Hitoshi Kitaguchi, Tsukuba, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a metal sheath MgBsuperconducting wire, it is intended to achieve a wire having increased current density and a long length at the same time, by densitying superconducting core part. The superconducting wire is manufactured by forming diffusion hardened layer on the inner surface of the sheath such that the hardness of the inner surface becomes higher than that of the outer surface, filling MgBsuperconductor, and further if necessary, a critical current density increasing material such as indium, copper, and tin, in a metal sheath, to subject it to wire drawing. For the metal sheath, a material with toughness such as steel is used. Even if the sheath is made to a long wire, it does not break, thereby, enabling to density superconducting core part.