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Transverse Erase Magnetic Head Disclosure Number: IPCOM000075480D
Original Publication Date: 1971-Sep-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 2 page(s) / 33K

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This magnetic read/write transducer employs transverse margin erase.

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Transverse Erase Magnetic Head

This magnetic read/write transducer employs transverse margin erase.

A magnetic ferrite core 10, encompassing a nonmagnetic glass gap 11, has thin conductive nonmagnetic layers 12 deposited selectively on the side surfaces of the magnetic core. Magnetic layers 14 are deposited against the sides of core 10 and over the respective conductive layers. Electrical conducting leads 16, 17 and 18 are attached to the conductive layers 12 for providing an erase current therethrough. As shown, the conductive layers extend to the bottom surface of the magnetic core in the region 20 and the magnetic layers extend over the conductive layers to the magnetic core in the same region.

When erase current is applied through the conducting leads to the conductive layers, a magnetic flux flows transversely from the outer edge of the magnetic core to the magnetic layers. This flux creates a transverse magnetic field for erasing the edges of a track recorded on a magnetic medium by gap 11.


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