Patent ID: 7787207
Filing Date: 2010-08-31
Classification: G11B

Abstract:
1. A head control method for controlling a protruding flying height, which is a distance between a head having a storage element that is opposed to a storage medium and the storage medium, by applying an energization amount to a heater element in the head to thermally expand the head, the head control method comprising: a resistance-value measuring step of measuring a resistance value of the storage element; an energization-amount calculating step of calculating an energization amount applied to the heater element such that the resistance value measured in the resistance-value measuring step reaches a reference resistance value, which is a resistance value of the storage element in a state in which an energization amount necessary for setting the protruding flying height to a target value is applied to the heater element under specific environmental temperature; and a heater control step of performing control to apply the energization amount calculated in the energization-amount calculating step to the heater element.