
TOKYO (Reuters) -Sumitomo Electric Industries Ltd said on Monday it would soon start mass production of cost-competitive, superconductive wire capable of transmitting 130 times the electricity deliverable by a normal copper wire....Employing know-how called "high-temperature superconductivity technology," Japan's biggest electric cable maker successfully produced 3,000-foot sections of ceramic superconductive wire, with a width less than that of a pencil....