H - Electricity – 01 – B
Patent
H - Electricity
01
B
337/3.1
H01B 12/02 (2006.01) H01L 39/02 (2006.01)
Patent
CA 2013357
A jointed structure comprising at least two kinds of oxide superconductor having different melting points, higher melting point superconductor and one lower melting point oxide superconductor being alternately jointed. In this jointed structure, the lower melting oxide superconductor is used as a joint layer for the higher melting oxide superconductors. The jointed structure can be obtained by combining an Y-Ba-Cu-O oxide superconducting material and a Bi-Sr-Ca-Cu-O oxide superconducting material, or by combin- ing two Bi-Sr-Ca-Cu-O oxide superconducting materials of different compositions and accordingly of different melting points. Large cylindrical structures used as, for example, a container for apparatus for biomagnetism measurement can be produced by jointing two or more divided cylindrical parts. In this case, the technique of the jointed structure of the present invention can be applied for jointing of the divided cylindrical parts. The cylindrical structure produced by jointing divided cylindrical parts according to the present invention can prevent the incoming of geomagnetism, thereby enabling reliable measurement of biomagnetism.
Sakai Hitoshi
Yoshida Hitoshi
Marks & Clerk
Ngk Insulators Ltd.
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