Patent ID: 6445547
Filing Date: 2002-09-03
Classification: G11B

Abstract:
A magnetic disc device of the type which includes a medium having data zones on a top portion of the medium and data zones on a bottom portion of the medium, where the data zones on the top portion deviate from the data zones on the bottom portion of the medium, and a plurality of heads which are opposed to the medium and whose head gaps are offset, the plurality of heads consisting of a first head at which it is opposed to the medium at a predetermined position and a second head which is movable towards to and away from the medium, the magnetic disc device comprising a head control mechanism which causes a slide surface of the first head to be brought into contact with the data zones on the bottom portion of the medium by a first pressurizing force, and which causes a slide surface of the second head to be brought into contact with the medium at a position offset from the data zones on the top portion by a second pressurizing force that is higher than the first pressurizing force.