SAE Magnetics (H.K.)

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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 25113
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 565
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 4103
 
  
 
B44C PRODUCING DECORATIVE EFFECTS 133
 
  
 
C11D DETERGENT COMPOSITIONS 164
 
  
 
C23F NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES 135
 
  
 
G01L MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE 155
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 183
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 186

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8590138 Method of manufacturing thermally-assisted magnetic recording headFeb 24, 12Nov 26, 13[H04R, G11B]
8331059 Sub-assembly for a hard disc driveMay 20, 09Dec 11, 12[G11B]
8274751 Electrical current as probe for modulation at head-disk interfaceApr 01, 11Sep 25, 12[G11B, G01R]
8218269 Gimbal mounted slider assembly with ramp limiter transverse barAug 15, 11Jul 10, 12[G11B]
8189296 Thin-film piezoelectric device, production method thereof, head gimbals assembly using the thin-film piezoelectric device, and hard disk using the head gimbals assemblyOct 15, 09May 29, 12[G11B]
8139306 Electrical current as probe for modulation at head-disk interfaceNov 04, 04Mar 20, 12[G11B, G01R]
8054585 Gimbal with assymmetric dynamic stiffnessNov 28, 06Nov 08, 11[G11B]
8014104 Magnetic head/disk with transition metal oxynitride adhesion/corrosion barrier and diamond-like carbon overcoat bilayerMar 21, 07Sep 06, 11[G11B]
7978436 Air bearing surface with higher flying height for lower rotating speed drivesJun 05, 07Jul 12, 11[G11B]
7969685 ABS design for dynamic flying height (DFH) applicationsAug 13, 08Jun 28, 11[G11B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0322,432 ASSEMBLY METHOD OF A VOICE COIL MOTOR AND ASSEMBLY DEVICE THEREOFAbandonedJun 12, 13Oct 30, 14[H02K]
2013/0113,473 MAGNETIC SENSOR WITH SHUNTING LAYERS AND MANUFACTURING METHOD THEREOFAbandonedNov 04, 11May 09, 13[G01R, H05K]
2011/0038,074 Ramp for a hard disc driveAbandonedAug 17, 09Feb 17, 11[G11B]
2010/0259,852 Hard disc drive assembly with PCB with IO and read/write connectors on the same endAbandonedApr 14, 09Oct 14, 10[G11B]
2009/0279,211 Bearing apparatus for a hard disk driveAbandonedMay 07, 08Nov 12, 09[G11B]
2009/0262,458 ABS design for dynamic flying height (DFH) applicationsAbandonedApr 21, 08Oct 22, 09[G11B]
2009/0109,568 Thermal elements for controlling and manipulating thermal pitch static attitude (PSA)AbandonedOct 31, 07Apr 30, 09[G11B]
7455332 Method for controlling overcoat recession in a magnetic thin film headExpiredNov 16, 05Nov 25, 08[G11B]
2008/0187,781 Magnetic recording head and media overcoatAbandonedFeb 05, 07Aug 07, 08[C23C]
7322094 Method for manufacturing a head stack assemblyExpiredApr 27, 04Jan 29, 08[G11B]
7249520 Self-loaded pendulum for slider flexure stiffness measurementsExpiredSep 15, 06Jul 31, 07[G01B]
2005/0243,472 Head stack assembly and manufacturing thereofAbandonedApr 28, 04Nov 03, 05[G11B]
6703566 Bonding structure for a hard disk drive suspension using anisotropic conductive filmExpiredOct 25, 00Mar 09, 04[H05K]
6583971 Elimination of electric-pop noise in MR/GMR deviceExpiredMar 09, 99Jun 24, 03[G11B]
6558042 Bearing guided ferrofluid seal and seal carrierExpiredDec 28, 01May 06, 03[F16C]
6108909 Groove forming processes for shaft outer diameterExpiredJul 02, 96Aug 29, 00[B21K, B21D]
5925955 Labyrinth seal systemExpiredMay 15, 97Jul 20, 99[H02K, F16C]
5876126 Bearing guided labyrinthExpiredSep 12, 97Mar 02, 99[F16C]
5714817 Labyrinth seal systemExpiredSep 13, 96Feb 03, 98[H02K, F16C]
5689146 Conical bearing system for spindle motorsExpiredNov 05, 96Nov 18, 97[H02K, F16C]

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