Thin-film transformer utilizing superconductive components

Details Thin-film transformer utilizing superconductive components Thin-film transformer utilizing superconductive components

1990-03-08

1992-03-17

Picard, Leo P.

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

505 1, 505870, 336DIG1, 335216, 323360, H01F 500, H01F 3600

Patent

active

050972430

ABSTRACT:
Thin-film transformer, for example suitable for use in a thin-film magnetic head, comprising a magnetic yoke composed of two magnetically permeable thin layers 3 and 5 and a primary turn constituted by an electrically conducting thin layer 13 and a secondary turn constituted by an electrically conducting thin layer 15. A thin layer 21 of a superconducting material is provided between the layer 3 and the said turns, or the turns are closely fitted together and made of a superconducting material themselves.

REFERENCES:
patent: 3098181 (1963-07-01), Cioffi
patent: 3214679 (1965-10-01), Richards
patent: 3275843 (1966-09-01), Meyerhoff
patent: 4044394 (1977-08-01), Hanazono et al.
patent: 4135127 (1979-01-01), Khanna et al.
patent: 4621203 (1986-11-01), Sweeny
patent: 4745506 (1988-05-01), Nakamura et al.
patent: 4787003 (1988-11-01), Nakamura et al.
patent: 4979064 (1990-12-01), Mage et al.

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