Perpendicular magnetic head and method of manufacturing the same
AssigneeTokyo Shibaura Denki Kabushiki Kaisha
InventorMasanori Isshiki
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Abstract
A perpendicular magnetic recording head is disclosed which includes a block core of a high magnetic permeability material having a side surface substantially perpendicular to a magnetic surface of a magnetic tape moving relative to it, a thin film core including a magnetic thin film of a high magnetic permeability material, the thin film core being secured to the side surface of the block core and having a width smaller than the width of the block core, the thin film core having a pole section extending from said side surface of the block core substantially perpendicularly to the magnetic surface and in contact therewith at the end, and an exciting coil wound on the block core and thin film core.
Claims12
A perpendicular magnetic head capable of magnetizing a magnetic layer of a magnetic recording medium having said magnetic layer on one side and moved relative to said magnetic head, said magnetic layer being magnetized in the direction of the thickness thereof, said magnetic head comprising:
- a block core of a high magnetic permeability material;
- a thin film core mounted on said block core and having a pole section extending toward a magnetic surface of said magnetic recording medium, said pole section providing a width smaller in the direction of the track width of said magnetic recording medium than that of said block core and having at the end a pole face in contact with the magnetic surface of said magnetic recording medium, said thin film core including a thin film of a high magnetic permeability material;
- and
- an exciting coil wound on said thin film core and said block core, through said exciting coil current corresponding to an electric signal to be recorded on said magnetic recording medium being supplied, whereby a magnetic flux corresponding to said exciting current produced in said thin film core is coupled to said magnetic recording medium in the direction of the thickness thereof.
Dependencies are inferred from the claim text.