WD Media, LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 6777
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 1048
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1091
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 4358
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 384
 
  
 
B44C PRODUCING DECORATIVE EFFECTS 331
 
  
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS357
 
  
 
C11D DETERGENT COMPOSITIONS 362
 
  
 
B25B TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING242
 
  
 
B25J MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES 256

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0154,647 STACKED INTERMEDIATE LAYER FOR PERPENDICULAR MAGNETIC RECORDING MEDIANov 30, 15Jun 01, 17[G11B]
2015/0262,602 PERPENDICULAR MAGNETIC RECORDING MEDIUMMay 28, 15Sep 17, 15[G11B]
2015/0027,877 MAGNETIC DISK AND METHOD FOR MANUFACTURING SAMEOct 14, 14Jan 29, 15[G11B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9822441 Iridium underlayer for heat assisted magnetic recording mediaMar 31, 15Nov 21, 17[C23C, G11B]
9824711 Soft underlayer for heat assisted magnetic recording mediaJun 25, 14Nov 21, 17[G11B]
9818442 Magnetic media having improved magnetic grain size distribution and intergranular segregationDec 01, 14Nov 14, 17[G11B]
9754618 Heat-assisted magnetic recording (HAMR) medium including a split heat-sink structure (SHSS)Apr 22, 16Sep 05, 17[G11B]
9697859 Heat-assisted magnetic recording (HAMR) medium including a bi-layer that enables use of lower laser current in write operationsApr 01, 16Jul 04, 17[G11B]
9685184 NiFeX-based seed layer for magnetic recording mediaSep 25, 14Jun 20, 17[G11B]
9607646 Hard disk double lubrication layerMar 04, 14Mar 28, 17[G11B]
9548073 Systems and methods for providing high performance soft magnetic underlayers for magnetic recording mediaMar 13, 13Jan 17, 17[G11B]
9542968 Single layer small grain size FePT:C film for heat assisted magnetic recording mediaOct 31, 13Jan 10, 17[C23C, G11B]
9459174 Bellows leakage tester and methods for testing bellowsDec 31, 13Oct 04, 16[G01M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0148,634 MAGNETIC RECORDING MEDIA WITH IMPROVED GRAIN COLUMNAR GROWTH FOR ENERGY ASSISTED MAGNETIC RECORDINGAbandonedFeb 02, 16May 26, 16[G11B]
2016/0099,021 MULTI-SPEED PROGRAMMABLE BATCH SCRUBBER SYSTEMAbandonedOct 07, 14Apr 07, 16[G11B]
2015/0348,764 ROTATING DISK CARRIER WITH PBN HEATERAbandonedMay 27, 14Dec 03, 15[H01J]
2014/0151,360 HEATER ASSEMBLY FOR DISK PROCESSING SYSTEMAbandonedNov 30, 12Jun 05, 14[H05B]
8668953 Annealing process for electroless coated disks for high temperature applicationsExpiredDec 28, 10Mar 11, 14[B05D, G11B]
8658003 Dual position DC magnetron assemblyExpiredFeb 29, 12Feb 25, 14[C23C]
2014/0050,843 DUAL SINGLE SIDED SPUTTER CHAMBERS WITH SUSTAINING HEATERAbandonedAug 17, 12Feb 20, 14[G11B]
8619381 System and method for improving head positioningExpiredMay 25, 11Dec 31, 13[G11B]
8597723 Perpendicular magnetic recording medium with single domain exchange-coupled soft magnetic underlayer and device incorporating sameExpiredJan 10, 11Dec 03, 13[G11B]
8562748 Multiple cleaning processes in a single tankExpiredJan 30, 09Oct 22, 13[B08B]
8556566 Disk stacking method and apparatusExpiredSep 30, 11Oct 15, 13[B65G, B65H]
8551253 Post polish disk cleaning processExpiredJun 29, 10Oct 08, 13[B08B]
8491800 Manufacturing of hard masks for patterning magnetic mediaExpiredMar 25, 11Jul 23, 13[C03C, H01L, B44C]

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