WD MEDIA, INC.

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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 8470
 
  
 
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 2477
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 1444
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 1077
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 9116
 
  
 
B44C PRODUCING DECORATIVE EFFECTS 628
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 561
 
  
 
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 MATERIALS555
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 5201
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 447

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9542968 Single layer small grain size FePT:C film for heat assisted magnetic recording mediaOct 31, 13Jan 10, 17[C23C, G11B]
9401170 Perpendicular magnetic recording medium with epitaxial exchange coupling layerNov 24, 09Jul 26, 16[G11B]
9339978 Press system with interleaved embossing foil holders for nano-imprinting of recording mediaJun 27, 13May 17, 16[B29C, B29D]
9330685 Press system for nano-imprinting of recording media with a two step pressing methodNov 06, 09May 03, 16[G11B]
9312107 Disk handling apparatus and method for supporting a disk during material deposition at a deposition stationMar 31, 11Apr 12, 16[C23C, H01J]
9296022 Sonication cleaning systemOct 18, 13Mar 29, 16[B08B]
9269480 Systems and methods for forming magnetic recording media with improved grain columnar growth for energy assisted magnetic recordingMar 30, 12Feb 23, 16[H01F]
9183867 Systems and methods for forming implanted capping layers in magnetic media for magnetic recordingFeb 21, 13Nov 10, 15[G11B]
9177601 Multiple cleaning processes in a single tankSep 30, 13Nov 03, 15[B08B, G11B]
9149978 Imprinting method with embossing foil free to expand for nano-imprinting of recording mediaMar 08, 13Oct 06, 15[B29C, H04R, G11B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0234,666 LUBRICANTS COMPRISING PFPE TERMINATED WITH BENZENE OR FUNCTIONAL BENZENE END GROUPS FOR MAGNETIC RECORDING MEDIA STRUCTUREAbandonedFeb 19, 13Aug 21, 14[G11B]
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]
8492009 Electrochemical etching of magnetic recording layerExpiredAug 25, 09Jul 23, 13[G11B]
2012/0251,842 LOW ROUGHNESS HEATSINK DESIGN FOR HEAT ASSISTED MAGNETIC RECORDING MEDIAAbandonedMar 31, 11Oct 04, 12[B05D, B01J, G11B, C21D]
2010/0300,884 ELECTRO-DEPOSITED PASSIVATION COATINGS FOR PATTERNED MEDIAAbandonedMay 26, 09Dec 02, 10[C25D, G11B]
2010/0035,085 PERPENDICULAR MAGNETIC RECORDING MEDIUM WITH IMPROVED MAGNETIC ANISOTROPY FIELDAbandonedJan 29, 08Feb 11, 10[B05D, G11B]
7656615 Perpendicular magnetic recording disk with a soft magnetic layer having a discrete track recording patternExpiredOct 27, 06Feb 02, 10[G11B]
7632087 Composite stamper for imprint lithographyExpiredDec 19, 03Dec 15, 09[B29C]
7608193 Perpendicular magnetic discrete track recording diskExpiredOct 27, 06Oct 27, 09[B44C]
7597792 Magnetic recording disk having DTR patterned CSS zoneExpiredSep 14, 05Oct 06, 09[G11B, C25F]
7569490 Electrochemical etchingExpiredMar 15, 05Aug 04, 09[H01L]

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