Fujikura Limited

Masayuki Tan

Masakazu Hasegawa

Michio Takaoka

Motoyuki Ono

Tsuneaki Motai

Isao Kaji

Masaru Kurata

Nobuyuki Sadakata

Osamu Kohno

Yoshimitsu Ikeno

Mikio Nakagawa

Ryuichi Okiai

Hiroshi Yamanouchi

Shin'ya Aoki

Syotaro Yoshida

A method of producing a superconducting cable or a coil including an A-B-C-D system superconductor where the A includes an element of group IIIa of the Periodic Table, the B an element of group IIa of the Periodic Table, C copper, D oxygen. A plurality of filaments are selected from a copper alloy filament including: a copper alloy filament including the A element; copper alloy filament including the B element; a copper alloy filament including both the elements the A and the B; a first metallic filament having particles of a copper oxide, copper halide or copper sulfide dispersed therein; a second metallic filament coated with an oxide layer; a copper filament containing the A element and having particles of a copper oxide, copper halide or copper sulfide dispersed therein; a copper filament containing the B element and having particles of a copper oxide, copper halide or copper sulfide dispersed therein; a third metallic filament containing the A element and coated with an oxide layer; a fourth metallic filament containing the B element and coated with an oxide layer; the first to fourth metallic filaments being substantially free of any component which provides an adverse effect on the production of the superconductor. The selected filaments are arranged to form element filaments bundle so that the superconductor is produced in a subsequent heat treatment. The bundle is drawn and then heated under an oxidizing atmosphere for producing the superconductor.

Method of producing oxide superconducting cables and coils using copper

A method for jointing CV cables includes a lock mechanism which closes a split portion of a mold, used for extrusion-molding and opens the split portion by heat when crosslinking is performed.

Method for jointing CV cables

An apparatus for jointing CV cables includes a lock mechanism which closes a split portion of a mold, used for extrusion-molding and opens the split portion by heat when crosslinking is performed.

Apparatus for jointing CV cables

Growing community of inventors

Chiba, Japan

Masayuki Tan