Patent ID: 7095592

Claim:
A head slider for traveling over a surface of a disk-shaped recording medium so as to perform at least one of recording information onto and playing back information from the disk-shaped recording medium via a transducer, comprising: a front end portion on a forward side with respect to a rotational direction of the disk-shaped recording medium; a rear end portion on a rearward side with respect to the rotational direction of the disk-shaped recording medium; an opposite-to-disk surface arranged to be opposite the disk-shaped recording medium; and a transducer on said opposite-to-disk surface, wherein (i) said head slider is constructed and arranged to travel over the surface of the disk-shaped recording medium, upon rotation of the disk-shaped recording medium, under a dynamic pressure produced from a viscous fluid flow accompanying rotation of the disk-shaped recording medium and a load urging said head slider toward the disk-shaped recording medium, and (ii) said opposite-to-disk surface is configured to have a fixed point set at a position located rearwardly from said rear end portion and at a predetermined distance from a point of application of the load, with said head slider being constructed and arranged to rotate around the fixed point, when each of a first shock force and a different second shock force is externally applied to said head slider while traveling over the surface of the disk-shaped recording medium, in a direction in which at least one of pitch angle and roll angle decreases while each of the pitch angle and roll angle remains positive.