Dynamic magnetic information storage or retrieval – Head – Coil
Patent
1992-05-20
1995-03-07
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Head
Coil
360126, G11B 517, G11B 5147
Patent
active
053963890
ABSTRACT:
A thin-film magnetic circuit board is disclosed which includes: a substrate formed of a non-magnetic material; a connector formed from a magnetic film on one major surface of the substrate, the connector having opposite end portions which protrude from the substrate to form a pair of protrusions; at least one coil formed from an electrically conductive film to provide a circuit pattern on the one major surface of the substrate, each coil having a spiral shape and surrounding a corresponding one of at least one of the protrusions of the connector; and a pair of leads which are electrically connected to opposite ends of the circuit pattern formed by the coil(s). Also is disclosed a magnetic head including this thin-film magnetic circuit board and a core element having a magnetic gap.
REFERENCES:
patent: 4626947 (1986-12-01), Narishige et al.
patent: 4719527 (1988-01-01), Yoshisato et al.
patent: 4797765 (1989-01-01), Ezaki et al.
patent: 4943883 (1990-07-01), Sano et al.
patent: 5031063 (1991-07-01), Hasegawa
patent: 5136447 (1992-08-01), Makino et al.
patent: 5157570 (1992-10-01), Shukovsky et al.
IBM Technical Disclosure Bulletin (vol. 23, No. 10, Mar. 1981).
Matsuzawa Soichiro
Terada Nobuhiro
Cao Allen
Levy Stuart S.
NGK Insulators Ltd.
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