Metal working – Method of mechanical manufacture – Electrical device making
Patent
1992-10-29
1994-08-02
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
360126, 360127, G11B 542
Patent
active
053333721
ABSTRACT:
A method for manufacturing a magnetic head having a laminated core formed by alternately laminating metal magnetic layers and oxide layers on a non-magnetic substance base to a prescribed thickness. The method includes the steps of, positioning the laminated core in a frame of oxide magnetic substance to form a laminated core block, fusing the laminated core and the frame into one body, cutting the fused body to form a complementary pair of laminated core blocks, forming a groove for coil windings on one of the complementary pair of the laminated core blocks, applying a non-magnetic substance film between the laminated cores of the laminated core blocks to form a magnetic gap, joining the complementary pair of the laminated core blocks together to form a magnetic head block and finishing a surface of the magnetic head block to form a prescribed head surface around the magnetic gap.
REFERENCES:
patent: 4894742 (1990-01-01), Saito et al.
Fujioka Yoshiharu
Nagatsuka Shintaro
Tsutaki Shoji
Hall Carl E.
Kabushiki Kaisha Toshiba
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