Base isolation device

Patent Granted PROBLEM TO BE SOLVED: To provide a base isolation device using a superconductor. ; SOLUTION: A side view is shown as (a), and a perspective view is shown as (b) (the uppermost substrate is excepted in the shown perspective view). One unit comprises layered structure formed of the first permanent magnets 121-124-the first super conductors 141-144, and the second permanent magnets 151-154-the second superconductors 171-174, sequentially from a lower part thereof..