WD MEDIA (SINGAPORE) PTE. LTD.

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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 7075
 
  
 
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 794
 
  
 
C10M LUBRICATING COMPOSITIONS 643
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 384
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3154
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
C07F ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM, OR TELLURIUM 169
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 183
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 1127

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2015/0262,602 PERPENDICULAR MAGNETIC RECORDING MEDIUMMay 28, 15Sep 17, 15[G11B]
2011/0244,119 PERPENDICULAR MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING THE SAMEJun 20, 11Oct 06, 11[B05D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9558778 Lubricant compound for magnetic disk and magnetic diskMar 27, 10Jan 31, 17[C07F, C10M, G11B]
9472227 Perpendicular magnetic recording media and methods for producing the sameJun 22, 11Oct 18, 16[G11B]
9183869 Perpendicular magnetic recording medium and method of manufacturing perpendicular magnetic recording mediumOct 10, 13Nov 10, 15[G11B]
9177586 Magnetic disk and manufacturing method thereofSep 30, 09Nov 03, 15[C10M, G11B]
9159351 Perpendicular magnetic recording medium and method of manufacturing the sameOct 14, 08Oct 13, 15[G11B]
9142238 Vertical magnetic recording disk manufacturing method and vertical magnetic recording diskMar 29, 07Sep 22, 15[C23C, G11B]
9142241 Perpendicular magnetic recording medium and method of manufacturing the sameApr 23, 13Sep 22, 15[G11B]
9082444 Magnetic recording medium and method of manufacturing a magnetic recording mediumMar 28, 08Jul 14, 15[B82Y, G11B]
9047903 Perpendicular magnetic recording medium and process for manufacture thereofMar 26, 09Jun 02, 15[G11B]
9005699 Method for manufacturing magnetic recording mediumSep 27, 07Apr 14, 15[B05D, G11B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0011,054 METHOD OF PRODUCING A PERPENDICULAR MAGNETIC RECORDING MEDIUM AND PERPENDICULAR MAGNETIC RECORDING MEDIUMAbandonedSep 08, 13Jan 09, 14[G11B]
8623529 Method of producing a perpendicular magnetic recording medium and perpendicular magnetic recording mediumExpiredMar 24, 09Jan 07, 14[G11B]
8453315 Method of producing a perpendicular magnetic discExpiredMar 24, 11Jun 04, 13[H04R, G11B]
8425975 Magnetic disk and magnetic disk manufacturing methodExpiredSep 19, 08Apr 23, 13[C23C, B05D]
8414966 Magnetic recording medium and manufacturing method of the sameExpiredMar 09, 09Apr 09, 13[C23C, G11B]
2013/0040,167 PERPENDICULAR MAGNETIC RECORDING MEDIUM AND ITS MANUFACTURING METHODAbandonedJan 12, 11Feb 14, 13[G11B]
2011/0097,604 PERPENDICULAR MAGNETIC RECORDING MEDIUMAbandonedMar 30, 09Apr 28, 11[G11B]
2010/0232,065 MAGNETIC DISK AND METHOD OF MANUFACTURING THE SAMEAbandonedMar 29, 07Sep 16, 10[G11B]
2010/0215,992 SINGLE-SIDED PERPENDICULAR MAGNETIC RECORDING MEDIUMAbandonedFeb 22, 10Aug 26, 10[G11B]
2009/0311,557 PERPENDICULAR MAGNETIC RECORDING DISK AND METHOD OF MANUFACTURING THE SAMEAbandonedMar 31, 07Dec 17, 09[B05D, G11B]
7597973 Magnetic disk and method of producing the sameExpiredNov 27, 06Oct 06, 09[G11B]
2009/0191,331 PERPENDICULAR MAGNETIC RECORDING MEDIUM MANUFACTURING METHODAbandonedMar 31, 07Jul 30, 09[B05D]
2009/0169,922 MAGNETIC DISK MANUFACTURING METHOD AND MAGNETIC DISKAbandonedMar 23, 07Jul 02, 09[B05D, G11B]
2009/0136,784 MAGNETIC RECORDING DISK AND METHOD FOR MANUFACTURE THEREOFAbandonedSep 28, 06May 28, 09[G11B]
7537846 Magnetic disk, method of manufacturing the magnetic disk and method of evaluating the magnetic diskExpiredNov 10, 04May 26, 09[C23C, G11B]
7531485 Method of producing a lubricant for a magnetic disk, lubricant for a magnetic disk, magnetic disk, and method of producing a magnetic diskExpiredSep 26, 05May 12, 09[C10M]
2009/0117,408 PERPENDICULAR MAGNETIC RECORDING DISK AND METHOD OF MANUFACTURING THE SAMEAbandonedMar 31, 07May 07, 09[C23C, G11B]
6946191 Magnetic recording mediumExpiredFeb 24, 03Sep 20, 05[G11B]
6916558 Magnetic disk using a glass substrateExpiredFeb 17, 04Jul 12, 05[G11B, B32B]
6204995 Magnetic disc apparatusExpiredFeb 16, 99Mar 20, 01[G11B]

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