Patent ID: 7138581
Filing Date: 2006-11-21
Classification: H01B,H01F,H01L,Y02E

Abstract:
1. A low resistance conductor using superconductors wherein said low resistance conductor has a longitudinal direction, said low resistance conductor comprised of a plurality of REBa 2 Cu 3 O 7-x based bulk superconductors, in which RE 2 BaCuO 5 phase is dispersed, where RE is one type or a combination of types of rare earth elements including Y, wherein said plurality of said bulk superconductors have a longitudinal direction parallel to the longitudinal direction of said low resistance conductor and are arranged in two or more layers, said plurality of bulk superconductors electrically connected by normal conductors having a finite electrical resistance, wherein an apparent specific resistance of said low resistance conductor at 77K is lower than a specific resistance of copper at 77K, wherein part or all of the normal conductor electrical connections of said plurality of superconductors are joints between faces substantially parallel to the longitudinal direction of adjoining superconductors, wherein said two or more layers of superconductors are arranged so as to cover normal conductor electrical connections of said superconductors in the longitudinal direction, wherein said two or more layers of superconductors are arranged so as to cover clearances between said superconductors, and wherein electric current flows in the longitudinal direction of said low resistance conductor.