| WD MEDIA, INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120034492 | ELECTROLESS COATED DISKS FOR HIGH TEMPERATURE APPLICATIONS AND METHODS OF MAKING THE SAME - A disk for a hard disk drive is provided. The disk comprises a substrate comprising aluminum, and a coating layer disposed over the substrate. The coating layer comprises an alloy of Ni, X | 02-09-2012 |
| 20120003062 | CORNER CHAMBER WITH HEATER - A disk processing system with a corner chamber having a heater assembly and a carrier rotary assembly configured to rotate the heater assembly. | 01-05-2012 |
| 20110315162 | POST POLISH DISK CLEANING PROCESS - A method for cleaning plated polished disks used in hard drive media is provided. The method includes positioning plated polished disks in a first batch scrubber having multiple first brushes, wherein each of the plated polished disks is positioned between two of the first brushes, and scrubbing the plated polished disks with the first brushes. The method further includes positioning the plated polished disks scrubbed in the first batch scrubber in a second batch scrubber having multiple second brushes, wherein each of the plated polished disks is positioned between two of the second brushes, and scrubbing the plated polished disks with the second brushes. | 12-29-2011 |
| 20110219389 | SPIN STAND COMPRISING A DUAL DISK CLAMP - A spin stand is disclosed comprising a spindle motor having a rotor. A first disk clamp is operable to clamp a first disk to the rotor, and a second disk clamp is operable to clamp a second disk to the rotor. An actuator is operable to clamp the second disk clamp in order to clamp the second disk to the rotor after the first disk has been clamped to the rotor. | 09-08-2011 |
| 20110216431 | PROCESSING DISKS ON A SPIN STAND - A method of processing disks on spin stand is disclosed, the spin stand comprising a spindle motor having a rotor. A first disk is clamped to the rotor, wherein the first disk comprises a reference servo pattern. A second disk is clamped to the rotor, and a first head is servoed over the first disk in response to the reference servo pattern in order to position a second head over the second disk at a first radial location. Data is written to the second disk at the first radial location using the second head. The second disk is removed from the rotor while the first disk remains clamped to the rotor. | 09-08-2011 |
| 20110153061 | Master Teaching Jig - A disk carrier for teaching disk positioning in a substrate changing system. The disk carrier composed of a panel having a disk opening configured to receive a disk and a plurality of beam sensors disposed around the disk opening to project beams parallel to a surface of the disk when secured within the disk opening. The plurality of beam sensors may be composed of at least one beam sensor on each of a front side and rear side of the panel. | 06-23-2011 |
| 20110104427 | GLASS SUBSTRATES AND METHODS OF ANNEALING THE SAME - A method for forming a glass substrate comprises the steps of forming a glass blank with opposing substantially planar surfaces and at least one edge, coating the glass blank in silica-alumina nanoparticles, the silica-alumina nanoparticles comprising an inner core of silica with an outer shell of alumina, annealing the coated glass blank to form a conformal coating of silica-alumina around the glass blank, and polishing the coated glass blank to remove the conformal coating of silica-alumina from the opposing substantially planar surfaces thereof. | 05-05-2011 |
| 20110064970 | COMPOSITE LUBRICANT FOR HARD DISK MEDIA - A composite lubricant for recording disk media, a recording disk media including a layer of the composite lubricant, and method of manufacturing the same are described. The composite lubricant may include a non-phosphazene component and a phosphazene component where the non-phosphazene component is a difunctional perfluoropolyether compound terminated with first and second polar end groups, the first polar end group comprising a first number of hydroxyls and the second polar end includes a second number of hydroxyls, greater than the first number of hydroxyls. The phosphazene component may be a difunctional perfluoropolyether compound terminated with a phosphazene functional group and with a third polar end group, the third polar end group comprising a third number of hydroxyls equal to the second number of hydroxyls. | 03-17-2011 |
| 20100300884 | ELECTRO-DEPOSITED PASSIVATION COATINGS FOR PATTERNED MEDIA - A method of fabricating a patterned magnetic recording disk is described. The method may include electrodepositing a protection layer on the magnetic recording layer of the disk. | 12-02-2010 |
| 20100300875 | MAGNETIC PARTICLE TRAPPER FOR A DISK SPUTTERING SYSTEM - A magnetic particle trapper for use in a sputtering system includes a roller cover plate having a plurality of openings arranged and dimensioned to accommodate a plurality of rollers associated with a mechanical transport mechanism of the sputtering system, and a plurality of magnets to trap magnetic particles, the plurality of magnets being attached to the roller cover plate in locations proximate to the plurality of openings. | 12-02-2010 |
| 20100079888 | ECCENTRICITY DETERMINATION FOR A DISK - Monitoring of the eccentricity of a pre-formatted servo pattern on a disk. | 04-01-2010 |
| 20100035085 | PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH IMPROVED MAGNETIC ANISOTROPY FIELD - A perpendicular magnetic recording medium comprising a substrate, a soft underlayer, a seed layer, a non-magnetic FCC NiW alloy underlayer, a non-magnetic HCP underlayer, and a magnetic layer. We have discovered that the combination of a seed layer comprising Ta and a NiW alloy underlayer uniquely improves media recording performance and thermal stability by achieving excellent coercivity of the thin bottom magnetic recording layer and narrow C axis orientation distribution. | 02-11-2010 |
| 20100024962 | COMPOSITE STAMPER FOR IMPRINT LITHOGRAPHY - A stamper having a patterned layer composed of a hard material and a compressible material back plane layer. The back plane layer may be composed of an elastomer. The stamper may be used to imprint an embossable layer disposed above a substrate for the production of a magnetic recording disk. | 02-04-2010 |
