KOYO SEIKO CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 11511
 
  
 
B62D MOTOR VEHICLES; TRAILERS 9331
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 4053
 
  
 
F16H GEARING3070
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 1889
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 1176
 
  
 
C22C ALLOYS 864
 
  
 
F01L CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES 847
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 650
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 643

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7247111 Vehicle steering apparatusAug 16, 05Jul 24, 07[F16H]
7228933 Electric power steering device and jointOct 29, 03Jun 12, 07[B62D]
7177744 Elastic support assembly for electric power steering apparatusFeb 12, 04Feb 13, 07[B62D]
7143683 Hydraulic power steering apparatusSep 10, 04Dec 05, 06[F15B]
7127921 Locking device for steering shaft and steering apparatus having the deviceFeb 26, 03Oct 31, 06[E05B]
7129663 Electric power steering apparatus and boosterAug 31, 05Oct 31, 06[B62D]
7126304 Motor controller and electric power steering apparatusSep 06, 05Oct 24, 06[G05B]
7121730 Bearing deviceFeb 28, 02Oct 17, 06[F16C]
7122983 Rotating angle detecting apparatus and electric power steering apparatusApr 15, 05Oct 17, 06[H02P]
7117753 Torque detecting apparatusJan 12, 05Oct 10, 06[G01L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7524238 Method of processing antifriction bearing unit for wheelExpiredApr 05, 07Apr 28, 09[B24B]
2008/0309,322 Compact wheel speed detector capable of saving space and improving workabilityAbandonedAug 27, 07Dec 18, 08[G01P]
2007/0235,248 Electric power steering assembly and method for fabricating sameAbandonedJun 01, 07Oct 11, 07[H02K, B62D]
2007/0077,869 Cross jointAbandonedDec 06, 06Apr 05, 07[B24B]
2007/0025,654 Tapered roller bearing assembly and method of fabricating the sameAbandonedJul 26, 05Feb 01, 07[F16C]
7147091 One way clutchExpiredOct 26, 01Dec 12, 06[F16D]
7125173 Bearing deviceExpiredJul 29, 03Oct 24, 06[F16C]
7104145 Torque sensorExpiredApr 01, 04Sep 12, 06[G01L]
7100754 Pulley unitExpiredNov 29, 04Sep 05, 06[F16D]
7102322 Motor controllerExpiredJul 01, 05Sep 05, 06[H02P]
7093703 One-way clutch integrated with a rolling bearing, and method of producing the sameExpiredApr 21, 04Aug 22, 06[F16D]
7093981 Self-aligning bearingExpiredMay 22, 03Aug 22, 06[F16C]
7086295 Torque detecting apparatusExpiredJan 29, 04Aug 08, 06[G01L]
7086296 Torque sensorExpiredSep 01, 05Aug 08, 06[G01L]
7086496 Electric power steering apparatusExpiredApr 05, 05Aug 08, 06[B62D]
7083504 Method of processing antifriction bearing unit for wheelExpiredJun 14, 04Aug 01, 06[B21D]
7076395 Angle detection apparatus and torque detection apparatusExpiredJun 03, 05Jul 11, 06[G01C]
7055397 Torque detector and method of manufacturing housing of torque detectorExpiredOct 25, 05Jun 06, 06[G01L]
7055665 One-way clutchExpiredJun 26, 03Jun 06, 06[F16D]
7051834 Power steering apparatusExpiredJul 29, 05May 30, 06[B62D]

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Top Inventors for This Owner

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