Nippon Seiko Kabushiki Kaisha

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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 1258
 
  
 
B62D MOTOR VEHICLES; TRAILERS 586
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155
 
  
 
G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 255
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 2105
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 197
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 190
 
  
 
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION158
 
  
 
F16H GEARING199

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5880585 Apparatus including a wheel coupled ring shaped magnet, for detecting rotation of a wheel in a two-wheeled vehicleFeb 27, 97Mar 09, 99[G01P]
5770900 Stepper motorNov 18, 96Jun 23, 98[H02K]
5590225 Plastic holder for bearingApr 29, 94Dec 31, 96[F16C]
5298323 Bearing steel and rolling bearing made thereofOct 09, 90Mar 29, 94[B32B]
5259886 Rolling memberSep 01, 92Nov 09, 93[F16C]
5252391 Surface treated sliding or rolling contact element and rolling bearingDec 13, 91Oct 12, 93[B32B]
RE34359 Electric steering apparatusJan 10, 92Aug 31, 93[B62D]
5228720 Coupler of collapsible shaft for steering deviceJun 25, 91Jul 20, 93[B62D]
5222913 Resilient connector for steering shaftSep 02, 92Jun 29, 93[B62D, F16D]
5209135 Impact absorbing type steering column deviceApr 18, 91May 11, 93[B62D, F16F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5870128 Light-emitting device assembly having in-line light-emitting device arrays and manufacturing method thereforExpiredMay 23, 96Feb 09, 99[B41J, G03G]
5557295 Display panelExpiredNov 06, 92Sep 17, 96[G09G]
5494531 Method and apparatus for cleaning medical instrumentsExpiredSep 15, 94Feb 27, 96[B08B]
5421088 Method of assembling a preload-type, double-row ball bearingExpiredSep 30, 93Jun 06, 95[B23P, F16C]
5332460 Method of manufacturing a seal ring for magnetic fluid seal deviceExpiredOct 02, 90Jul 26, 94[B29B]
5263366 Speed sensing hub unitExpiredApr 08, 92Nov 23, 93[G01M]
D340041 Actuator controllerExpiredMar 01, 91Oct 05, 93[]
5251154 Method for measuring accuracy of thread groove and system for the sameExpiredNov 09, 90Oct 05, 93[G06F, G01B]
5218744 Magnet-inclusive component suitable for use in occupant-protecting means for motor vehicleExpiredAug 16, 91Jun 15, 93[A44B]
5204711 Projection exposure deviceExpiredJun 07, 91Apr 20, 93[G03B]
D333666 Positioning actuatorExpiredMar 01, 91Mar 02, 93[]
5188474 Yoke for universal jointExpiredApr 08, 91Feb 23, 93[F16D]
5183341 Speed sensing bearing unitExpiredApr 03, 92Feb 02, 93[F16C]
5170590 Method of superfinishing a gothic-arch grooveExpiredNov 07, 90Dec 15, 92[B24B]
5161902 Magnetic sealing device for use between first and second magnetic members which rotate relative to each otherExpiredDec 02, 91Nov 10, 92[F16C, F16J]
5160166 Limit switch unit and passive seat belt assembly equipped with the sameExpiredAug 16, 91Nov 03, 92[B60R]
5149205 Dust seal device of linear guide apparatusExpiredJun 25, 91Sep 22, 92[F16C]
5149926 Acceleration sensorExpiredOct 31, 90Sep 22, 92[H01H]
5147009 Steering force control apparatus of power steering systemExpiredApr 26, 91Sep 15, 92[B62D]
5143402 Tilt type steering deviceExpiredMar 04, 91Sep 01, 92[B62D]

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