Patent ID: 6396662
Filing Date: 2002-05-28
Classification: G11B

Abstract:
A magnetic head comprising:a first magnetic head unit for recording and reproducing information to and from a first flexible rotating recording medium; a second magnetic head unit for recording and reproducing information to and from a second flexible rotating recording medium having a coercive force lower than a coercive force of the first flexible rotating recording medium; and a slider supporting the first and second magnetic head units, 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 rotating recording media, the first air bearing surface having a width on a leading edge side thereof perpendicular to a direction of approach of the flexible rotating recording media and a width on a trailing edge side thereof disposed opposite the leading edge side, the width of the leading edge side being greater than the width of the trailing edge side, the first air bearing surface being divided into a first surface part and a second surface part by a lateral incision extending in a direction perpendicular to the direction of approach of the flexible rotating recording media, a width of the second air bearing surface in a direction perpendicular to the direction of approach of the flexible rotating recording media being either constant or gradually declining from a leading edge side of the second air bearing surface toward a trailing edge side of the second air bearing surface, and the lateral incision having a depth greater than a depth of the central groove.