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US20120154949 BIPOLAR POSITION ERROR BURSTS WITH UNIPOLAR SERVO FIELDS  
A storage medium has a first servo field having magnetic lands separated by nonmagnetic areas, the magnetic lands of the first servo field having a unipolar pattern. The medium further includes a...
US20130010384 SERVO PATTERN COMPATIBLE WITH PLANARIZATION CONSTRAINTS OF PATTERNED MEDIA AND USE OF A SINGLE MASTER TEMPLATE  
Embodiments described herein provide for robust servo patterns that comply with planarization constraints and also allow use of a single master template for manufacture of both the front and back...
US20130033783 MULTI-DIRECTIONAL SELF SERVO-WRITING FOR A DISK DRIVE  
A method of self servo-writing servo information to a plurality of disk surfaces in a disk drive that includes writing servo information to a plurality of disk surfaces in a first direction,...
US20090135518 DISCRETE TRACK MAGNETIC MEDIA WITH DOMAIN WALL PINNING SITES  
A magnetic recording medium with domain wall pinning sites including a substrate, a soft magnetic underlayer, and a magnetic recording layer overlying the soft magnetic underlayer. In one...
US20080259482 Fabrication of discrete track media for narrow groove and improved reliability  
A magnetic media that has at least one groove. The groove is created by a process that includes initially forming a temporary layer over a magnetic layer of the disk. One or more grooves are...
US20130265672 Perpendicular Pole Head for Servo Writing Magnetic Media  
The present disclosure relates to a perpendicular pole head for creating a perpendicular magnetic moment in a concentrated pattern for writing the pattern on perpendicular magnetic media, such as...
US20080062560 Scratch effect controller with slippable surface  
The disclosure pertains to a scratch effect controller wherein the lower surface of the user manipulated disc and the upper surface of the rotary platter are made of low friction material. The...
US20100067145 SERVO PATTERNS FOR BIT PATTERNED MEDIA WITH MULTIPLE DOTS PER SERVO PERIOD  
A servo control field on a recordable medium includes a bit patterned media (BPM) pattern including a plurality of dots arranged in a down-track orientation and in a cross-track orientation,...
US20050248882 Magnetic hard disk substrate  
A magnetic hard disk substrate is produced by rotating an aluminum substrate or a glass substrate, supplying polishing slurry on its surface, pressing a polishing tape on the surface and running...
US20090107697 CARD INSULATOR WITH PROVISION FOR CONFORMANCE TO COMPONENT HEIGHT CHANGES  
A card insulator is formed with slits that conform to height changes required by the components mounted to a card. The insulative sheet has simple linear slits that extend completely through the...
US20130010389 PATTERNED MEDIA WITH AN ALTERNATING SERIES OF CONCENTRIC SERVO ZONES AND OVERLAP ZONES  
Embodiments described herein provide for patterned media concentric zones with an alternating series of concentric servo zones and overlap zones. The overlap zones facilitate the writing of servo...
US20130010388 PATTERNED MEDIA WITH AN ALTERNATING SERIES OF CONCENTRIC SERVO ZONES AND OVERLAP ZONES  
Embodiments described herein provide for patterned media concentric zones with an alternating series of concentric servo zones and overlap zones. The overlap zones facilitate the writing of servo...
US20130010382 PATTERNED MEDIA WITH AN ALTERNATING SERIES OF CONCENTRIC SERVO ZONES AND OVERLAP ZONES  
Embodiments described herein provide for patterned media concentric zones with an alternating series of concentric servo zones and overlap zones. The overlap zones facilitate the writing of servo...
US20080180844 MAGNETIC DISK MANUFACTURING SUPPORT METHOD AND MAGNETIC DISK MANUFACTURING METHOD  
A defect inspection is performed for each of glass substrates by a surface defect detector. The distance from the center of the glass substrate to a detected defect, as a radius of a nonmagnetic...
US20080144219 CONDUCTIVE PFPE DISK LUBRICANT  
Embodiments of the invention generally relate to PFPE lubricants, and more specifically to increasing the conductivity of PFPE lubricants. PFPE lubricants generally have low polarity and do not...
US20100014187 READ/WRITE APPARATUS AND METHOD FOR A MAGENTIC STORAGE MEDIUM COMPRISED OF MAGNETIC NANOPARTICLES CONTAINED WITHIN CARBON NANOTUBES  
A magnetic storage medium is formed of magnetic nanoparticles that are encapsulated within carbon nanotubes, which are arranged in a substrate to facilitate the reading and writing of information...
US20080117548 Storage Device And Storage System  
A storage device includes a drive selection section (1), a hard disk drive (HDD) (2), and a non-volatile memory drive (3). When an instruction such as a data I/O instruction is issued from a host...
US20110134565 MAGNETIC RECORDING DISK AND DISK DRIVE WITH TRACK IDENTIFICATION USING PHASE-TYPE SERVO PATTERNS  
A magnetic recording disk drive has a disk with a head positioning servo pattern of multiple circumferentially-spaced chevron patterns of discrete patterned servo islands. The disk drive has servo...
US20090128957 Connecting apparatus adapted in a conjunctive structure  
A connecting apparatus adapted in a conjunctive structure is provided. The conjunctive structure comprises a baseboard, a peripheral element and a connecting apparatus. The connecting apparatus...
US20080204933 Granular perpendicular magnetic recording media with multi-interlayer structure  
A perpendicular magnetic recording medium comprises a layer stack formed over a surface of a non-magnetic substrate, and comprising, in overlying sequence from the surface: a magnetically soft...
US20080239548 Multiple sector reassign on write error for disk drive  
A disk drive includes a disk for storing information representing data, and a memory device. A method for writing includes locating a first data sector on a disk where a write operation fails,...
US20090244775 ADJACENT-TRACK-ERASURE (ATE) REFRESH WITH INCREASED TRACK RESOLUTION FOR OFTEN-WRITTEN AREAS  
Methods and systems are shown that specify using group counters and track counters to reduce the need for adjacent-track-erasure (ATE) refresh. A group threshold may be used to monitor the number...
US20100033872 PATTERNED MEDIA BITS WITH CLADDING SHELL  
A bit patterned media (BPM) includes many magnetic dots arranged in tracks on a substrate. The magnetic dots each have a hard magnetic core, a soft magnetic cladding surrounding the core and a...
US20080279492 Fluid Dynamic Bearing Mechanism  
A fluid dynamic bearing mechanism that can ensure bearing rigidity, reduce shaft loss torque, reduce power consumption, stabilize axial rotation, and improve rotational accuracy is disclosed. The...
US20100033867 MAGNETIC STORAGE MEDIUM AND MAGNETIC RECORDING DEVICE  
A patterned media type magnetic storage medium has separated magnetic dots formed a data area having a first magnetic dots and a servo area. The micro position detection portion in the servo area...
US20130301163 COMPUTER COMPONENT ENCLOSURE  
The present invention is a computer component enclosure that includes a cube-shaped enclosed casing, a front control panel that is disposed underneath the enclosed casing, a USB power digital...
US20090153999 HARD DISK, CONTROL UNIT FOR A DISK DEVICE, AND METHOD FOR CONTROLLING A DISK DEVICE  
A hard disk includes: a plurality of servo areas which are elongated radially from a center of the hard disk to an outward thereof over tracks thereof; and a plurality of data areas which are...
US20110292546 TIMING TRACK FOR MASTER TEMPLATE SUBSTRATE  
A patterned recording media is formed from a master template that includes a data area and a timing track area having a final timing track. In order to form the final timing track, a first timing...
US20150116690 BIT PATTERNED MEDIA TEMPLATE INCLUDING ALIGNMENT MARK AND METHOD OF USING SAME  
A method is disclosed that includes forming at least one substrate alignment mark and at least one lithography alignment mark in a substrate; forming a seed layer on the substrate; and forming a...
US20080239570 SPINDLE MOTOR AND DISK-SHAPED MEDIUM RECORDING AND REPRODUCING DEVICE  
A spindle motor can suppress the generation of noise during swinging and the extend service life, and also suppress the increase in current consumption. The outside diameter Do of a thrust...
US20100020443 Creation of mirror-image patterns by imprint and image tone reversal  
Mirror-image patterns for use one patterned media. Methods are implemented to create a mirror-image on the top and bottom of a media disk. These mirror images simplify the creation of electronics...
US20120087036 Patterned media with offset PES servo segments with length encoded track position  
Patterned discrete track magnetic media compatible with the constraints imposed by the use of self-assembly technology are described in which the PES servo portion of each servo sector has at...
US20080239534 Encryption methods for patterned media watermarking  
Watermarks for patterned magnetic media. The watermarks are used to demonstrate the unauthorized replication of a patterned magnetic media. The watermarks include a dibit, a pattern in an open...
US20110149427 SUPPRESSING ADJACENT TRACK INTERFERENCE/FAR TRACK INTERFERENCE (ATI/FTI) IN A HARD DISK DRIVE (HDD) BY AN EXTERNAL MAGNETIC FIELD  
A hard disk drive (HDD) comprising a magnetic disk that includes a data storage surface and an external magnetic field parallel to the data storage surface for suppressing track interference.
US20090067091 Process for filling a patterned media of a hard disk with UV-cured lubricant  
A patterned disk for a hard disk drive. The patterned disk includes a magnetic material over a substrate. The magnetic material includes a plurality of grooves. The grooves are filled with a...
US20100002325 EMBEDDED TRACK INFORMATION FOR PATTERNED MEDIA  
A bit-patterned magnetic media (BPM) includes with respect to each data track regular bit-islands having a first size and large bit-islands having a second size. The placement of the regular...
US20070217073 DISK USABLE WITH HARD DISK DRIVE AND HARD DISK DRIVE HAVING THE SAME  
A disk usable with a hard disk drive includes a first texture recessively formed in a surface of a substrate of the disk and textured in a first pattern of a first net shape to have a first cross...
US20080212233 Method of manufacturing storage medium apparatus and storage medium apparatus  
A method of manufacturing a storage medium apparatus having a storage medium that stores data. The method includes disposing the storage medium onto a first unit having an insertion section to be...
US20120026627 MULTI-LAYER STACK ADJACENT TO GRANULAR LAYER  
In some embodiments, an article comprising a first magnetic recording layer, the first magnetic recording layer including a granular layer having a first magnetic anisotropy and a multi-layer...
US20110188152 SERVO PATTERNING AND WRITING COMPATIBLE WITH PLANARIZATION OF PATTERNED MAGNETIC DISKS  
Embodiments herein illustrate patterned servo data that is used to facilitate subsequent servo writing to a magnetic disk while allowing the patterned disk to be planarized with a relatively...
US20060291100 Thin film structure having a soft magnetic interlayer  
A thin film structure that includes a hard magnetic recording layer, a soft magnetic underlayer and an intermediate layer between the hard magnetic recording layer and the soft magnetic underlayer...
US20130222948 Shallow Trench Media  
A shallow trench discrete track media structure is fabricated by etching a magnetic recording layer to provide a plurality of discrete magnetic data tracks separated by shallow trenches. Each...
US20110075297 PATTERNED MAGNETIC MEDIA HAVING AN EXCHANGE BRIDGE STRUCTURE CONNECTING ISLANDS  
Patterned magnetic recording media and associated methods of fabrication are described. The patterned magnetic recording media includes a perpendicular magnetic recording layer that is patterned...
US20080239555 Multi-quadrant wedge offset reduction field values for disk drive servo  
A method for servo correction includes determining a first wedge offset reduction field value for a read element from information in a servo burst area of a wedge on a disk, storing the first...
US20080074788 Data storage system with media having shape memory alloy protected layer  
A disk for a hard disk drive. The disk includes a protective layer of shape memory alloy material over a magnetic layer. Contact between a head of the drive and the shape memory alloy material...
US20130155549 PATTERNED MAGNETIC STORAGE MEDIUM  
According to one embodiment, a patterned magnetic storage medium is disclosed herein. The magnetic storage medium includes a magnetic domain, a substantially non-magnetic region laterally adjacent...
US20080297947 Magnetic Disk for Hard Disk Drives  
The present invention provides a magnetic disk in a discrete track medium and a patterned medium, which prevents the loss of the magnetically recorded data when a head of a magnetic disk device...
US20090037420 DEVICE WITH STORAGE MEDIUM AND METHOD OF OPERATING THE DEVICE  
A device comprises a first storage medium, input/output architecture, a second storage medium, and a processor. The processor is arranged, in response to a request to access a file stored on the...
US20120105993 READING MULTI-LAYER CONTINUOUS MAGNETIC RECORDING MEDIA  
A method and system for reading readback pulse shapes representing a magnetization state transition between such written magnetization states of a two-layer continuous magnetic recording medium. A...
US20060109591 Method of making substrates for media used in hard drives  
A method for making substrates is disclosed. The method comprises providing a rod, which is made out of a substrate material and has an outside diameter substantially the same size as the outside...

Matches 1 - 50 out of 281 1 2 3 4 5 6 >