Patent ID: 6359753
Filing Date: 2002-03-19
Classification: G11B

Abstract:
A magnetic head having a leading edge side and a trailing edge side comprising:a first magnetic head unit for recording to and reproducing from a first flexible recording medium; a second magnetic head unit for recording to and reproducing from a second flexible recording medium having a coercive force lower than a coercive force of the first flexible recording medium; a slider supporting the first magnetic head unit, the slider having a central groove separating a first air bearing surface at which the first magnetic head unit is provided and a second air bearing surface at which the second magnetic head unit is provided, the slider generating an elevating force from an air flow generated in a space between the first and second air bearing surfaces and the flexible recording media the slider having a height direction extending perpendicularly relative to said first and second air bearing surfaces; the first air bearing surface having a width dimension A1 located on the leading edge side of the magnetic head and substantially perpendicular to a rotating direction extending from the leading edge side toward the trailing edge side, and a width dimension A1 located on the trailing edge side thereof and substantially perpendicular to said rotating direction, the width dimension A1 being larger than the width dimension A2; and an elevating force control slot formed on at least the first air bearing surface so as to extend in a direction substantially perpendicular to the rotating direction, the elevating force control slot having a depth D1 adjacent the central groove and a depth D2, adjacent the leading edge side of the magnetic head, greater than the depth D1.