Manufacturing method of complex magnetic head core

Metal working – Method of mechanical manufacture – Electrical device making

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2960319, 2960321, 2960322, G11B 542

Patent

active

060889098

ABSTRACT:
A method for manufacturing a magnetic head core of a complex magnetic head includes binding a first core material of a U-shaped cross section and a second core material of a flat plate shape to form a tubular core material having two bonded portions between the first and second core materials. Then a plurality of grooves are formed in the tubular core material across one of the bonded portions to form a plurality of track surfaces. The grooves are then filled with a fused glass material, and the other of the bonded portions is removed to form a substantially U-shaped core block having a plurality of track surfaces separated by the glass-filled grooves. The U-shaped core block is then sliced along each of the grooves to obtain a plurality of magnetic head cores. A complex magnetic head manufactured by the method is also disclosed.

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patent: 4048714 (1977-09-01), Huntt
patent: 5309306 (1994-05-01), Okada et al.
Yamamoto, et al., "120MB Large Capacity Floppy Disk Drive wih Backward R/W Compatibility," Technical Report of IEICE MR95-68 (Dec. 1995) pp. 1-8.

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