Publication: IEICE TRANSACTIONS on Electronics Publication Date: 1995/05/25 Vol. E78-CNo. 5pp. 535-541 Type of Manuscript: INVITED PAPER (Special Issue on Superconducting Electronics and Its Applications) Category: Applications of small-size high field superconducting magnet Keyword: liquid helium-free, superconducting magnet, bismuth based superconducting current lead, GM cryocooler,