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:
May. 01, 2007
Filed:
Feb. 15, 2005
Kunihiko Egawa, Tokyo, JP;
Yoshio Kubo, Tokyo, JP;
Takayuki Nagai, Tokyo, JP;
Takanori Sone, Tokyo, JP;
Kiyoshi Hiramoto, Tokyo, JP;
Masayoshi Wake, Ibaraki, JP;
Kunihiko Egawa, Tokyo, JP;
Yoshio Kubo, Tokyo, JP;
Takayuki Nagai, Tokyo, JP;
Takanori Sone, Tokyo, JP;
Kiyoshi Hiramoto, Tokyo, JP;
Masayoshi Wake, Ibaraki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of producing NbSn superconducting wire, including the steps of: preparing a plurality of Sn modules obtained by burying Sn-based metal cores in a Cu-based metal matrix and a plurality of Nb modules obtained by burying Nb-based metal filaments in a Cu-based metal matrix; bundling the Nb modules and the Sn modules such that the Nb modules surround the Sn modules and obtaining an assembly; inserting the assembly in a tubular member of Cu-based metal which internally comprises tube-like shaped Ta-based metal or Nb-based metal which serves as a diffusion barrier and obtaining a composite; drawing the composite; and heat-treating the composite.