Magnetic transducer head

Details Magnetic transducer head Magnetic transducer head

G - Physics

11

B

352/29

G11B 5/127 (2006.01)

Patent

CA 1204508

ABSTRACT OF THE DISCLOSURE Magnetic transducer head for perpendicular mode recording is disclosed which comprises a main magnetic pole made of a thin film of soft magnetic material and a pair of guard blocks bonded to the main magnetic pole as a unitary body so as to grip the main magnetic pole from both sides thereof, wherein the guard blocks are each formed of a nonmagnetic material portion extended from a magnetic record medium contact surface to a predetermined position and a magnetic material portion, grooves are formed on bonded boundary surfaces between the nonmagnetic material portions and the magnetic material portions, the grooves for separating auxiliary magnetic pole portions magnetically connected to the main magnetic pole to become auxiliary magnetic poles of a predetermined width from return path portions which become return path of magnetic fluxes from the main magnetic pole, boundary surfaces between the nonmagnetic material portions and the magnetic material portions come apart from the magnetic record medium contact surface at a plane perpendicular to the main magnetic pole formed on a pointed portion of the auxiliary magnetic poles, the grooves are covered with the non- magnetic material portions over a range from the auxiliary magnetic pole portions to the return path portions and a coil is wound around the main magnetic pole through the grooves.

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