Heat assisted magnetic recording withinterlaced high-power heated and low-power heated tracks
A Krichevsky - US Patent 9,099,103, 2015 - Google Patents
GI IB5/OO(2OO 6. O areal density and track density for a data storage system.(52) US Cl(.
01) Media with high magneto-crystalline anisotropy is heated CPC.......... GIIB 7/126 …
01) Media with high magneto-crystalline anisotropy is heated CPC.......... GIIB 7/126 …
Disk drive calibrating fly height actuator to enable laser biasing during non-write mode
TS Lee - US Patent 8,787,125, 2014 - Google Patents
A disk drive is disclosed comprising a disk, a head comprising a laser operable to heat the
disk while writing data to the disk, and a fly height actuator (FHA) operable to actuate the …
disk while writing data to the disk, and a fly height actuator (FHA) operable to actuate the …
Data storage device balancing and maximizing quality metric when configuring arial density of each disk surface
KX Tang - US Patent 9,082,458, 2015 - Google Patents
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et al. 6,691,213 B1 2/2004 Luu et al. 6,249,854 B1 6/2001 Fukuhisa et al. 6,691,255 B1 …
Disk drive measuring down-track spacing of read sensors
PE Soderbloom, D Giovenzana… - US Patent 9,257,145, 2016 - Google Patents
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Near-field transducer efficiency monitoring system
AS Chu, KA Haapala, PW Burnett, SK Chow - US Patent 9,142,244, 2015 - Google Patents
A system may have a data storage medium that contains at least one data bit that is
accessed by a transducing head that has a near-field transducer. A controller can be …
accessed by a transducing head that has a near-field transducer. A controller can be …
Waterfall method and apparatus for a data storage device read system
DW Wheelock, S Dahandeh - US Patent 9,251,844, 2016 - Google Patents
(57) ABSTRACT A waterfall manufacturing process and apparatus are described for a data
storage device. In an aspect, a determi nation is made during manufacturing of a magnetic …
storage device. In an aspect, a determi nation is made during manufacturing of a magnetic …
Energy assisted magnetic recording disk drive using modulated laser light
A method and system provide a heat assisted magnetic recording (HAMR) disk drive
including a media. The HAMR disk drive also includes a slider, at least one laser, at least …
including a media. The HAMR disk drive also includes a slider, at least one laser, at least …
Disk drive calibrating fly height actuator and laser power for heat assisted magnetic recording
H Ruan, GT Chia, P Nookala - US Patent 8,922,929, 2014 - Google Patents
BACKGROUND Disk drives comprise a diskanda head connected to a distal end of an
actuator arm which is rotated about a pivot by a voice coil motor (VCM) to position the head …
actuator arm which is rotated about a pivot by a voice coil motor (VCM) to position the head …
Disk drive detecting head touchdown by applying DC+ AC control signal to fly height actuator
BE Knigge, SH Shepherd, N Kermiche - US Patent 8,970,978, 2015 - Google Patents
A disk drive is disclosed comprising a head actuated over a disk, and a dynamic fly height
(DFH) actuator operable to control a fly height of the head over the disk. A DFH control …
(DFH) actuator operable to control a fly height of the head over the disk. A DFH control …
Data storage device boosting prelase bias while over data sector for heat assisted magnetic recording
PS Haralson - US Patent 9,620,162, 2017 - Google Patents
A data storage device is disclosed comprising a disk comprising a plurality of data sectors
and a plurality of servo sectors, and a head actuated over the disk, wherein the head …
and a plurality of servo sectors, and a head actuated over the disk, wherein the head …