199037 ⎘
Head arrangements not specific to the method of recording or reproducing; Driving or moving of heads; Track changing or selecting during transducing operation; Access to indexed tracks or parts of continuous track on discs with track following of accessed part
Magnetic disk recording device having different time interval between first and second pre-heating periods
#2Head position control method, head position control device, and disk device
#3Hard disk device
#4Position control of opticial head in a recording device
#5Non-consecutive transitional mechanism for seek operations when transitioning from a seek control to a track following control