Assignee
KOYO SEIKO CO
JP·753 granted patents·34 pending applications·14,299 citations·filing 1975–2007
Top patents by PatentIndex Score
787 records- 0199US6079513ASteering apparatus for vehicleKOYO SEIKO CO·Filed 1998·Granted Jun 27, 2000·227 cites·3 claims
- 0298US6415215B1Vehicle attitude control apparatusKOYO SEIKO CO·Filed 2001·Granted Jul 2, 2002·181 cites·19 claims
- 0397US7053582B2Control magnetic bearing deviceKOYO SEIKO CO·Filed 2005·Granted May 30, 2006·41 cites·3 claims
- 0497US6763738B1Electric power steering apparatusKOYO SEIKO CO·Filed 2000·Granted Jul 20, 2004·77 cites·8 claims
- 0596US6605938B1Compact wheel speed detector capable of saving space and improving workabilityKOYO SEIKO CO·Filed 2000·Granted Aug 12, 2003·53 cites·12 claims
- 0696US6588560B1Pulley unitKOYO SEIKO CO·Filed 2000·Granted Jul 8, 2003·40 cites·19 claims
- 0796US6129172AElectric power steering apparatusKOYO SEIKO CO·Filed 1998·Granted Oct 10, 2000·117 cites·4 claims
- 0896US4918344AElectric motor with frictional planetary speed reducerKOYO SEIKO CO·Filed 1988·Granted Apr 17, 1990·200 cites·6 claims
- 0996US4832665ATensionerKOYO SEIKO CO·Filed 1987·Granted May 23, 1989·104 cites·4 claims
- 1095US7270484B2Split outer race, split rolling bearing using same, and manufacturing method for split outer raceKOYO SEIKO CO·Filed 2005·Granted Sep 18, 2007·21 cites·4 claims
- 1195US6676548B2Fixing structure of a pulley unitKOYO SEIKO CO·Filed 2001·Granted Jan 13, 2004·53 cites·8 claims
- 1295US6550567B2Electric power steering apparatusKOYO SEIKO CO·Filed 2001·Granted Apr 22, 2003·47 cites·6 claims
- 1395US6523637B1Steering apparatus for automobileKOYO SEIKO CO·Filed 1998·Granted Feb 25, 2003·105 cites·4 claims
- 1495US5908457AAutomobile steering system including reaction feedback to operatorKOYO SEIKO CO·Filed 1996·Granted Jun 1, 1999·104 cites·9 claims
- 1595US4884449AApparatus for detecting a failure in bearingsKOYO SEIKO CO·Filed 1988·Granted Dec 5, 1989·60 cites·5 claims
- 1694US7175351B2Tapered roller bearingKOYO SEIKO CO·Filed 2005·Granted Feb 13, 2007·23 cites·15 claims
- 1794US6174117B1Fastening structure including a bolt having a serration that is press-fit into a bolt hole of a flangeKOYO SEIKO CO·Filed 1999·Granted Jan 16, 2001·54 cites·2 claims
- 1894US6082482AVehicle steering apparatusKOYO SEIKO CO·Filed 1998·Granted Jul 4, 2000·90 cites·16 claims
- 1993US6527642B1Power transmission coupling and power transmission apparatusKOYO SEIKO CO·Filed 2000·Granted Mar 4, 2003·42 cites·12 claims
- 2093US6442462B1Motor vehicle steering systemKOYO SEIKO CO·Filed 2001·Granted Aug 27, 2002·64 cites·5 claims
- 2193US6290398B1Rolling bearingKOYO SEIKO CO·Filed 1998·Granted Sep 18, 2001·55 cites·17 claims
- 2293US4923435AChain or belt tensioner with a one-way clutchKOYO SEIKO CO·Filed 1988·Granted May 8, 1990·60 cites·3 claims
- 2393US4864231ABearing assembly having a wheel speed sensorKOYO SEIKO CO·Filed 1988·Granted Sep 5, 1989·92 cites·8 claims
- 2493US4792243ABearingKOYO SEIKO CO·Filed 1987·Granted Dec 20, 1988·72 cites·3 claims
- 2593US4170726AMethod of working outer periphery of articles with laser lightKOYO SEIKO CO·Filed 1978·Granted Oct 9, 1979·56 cites·4 claims
- 2692US6927548B2Electric power steering apparatusKOYO SEIKO CO·Filed 2004·Granted Aug 9, 2005·56 cites·4 claims
- 2792US6848555B2Electronic controlled couplingKOYO SEIKO CO·Filed 2003·Granted Feb 1, 2005·37 cites·13 claims
- 2892US6510756B2Ball spline joint and intermediate shaft for use in a steering column assemblyKOYO SEIKO CO·Filed 2001·Granted Jan 28, 2003·33 cites·9 claims
- 2991US6938722B2Electric power steering apparatusKOYO SEIKO CO·Filed 2003·Granted Sep 6, 2005·28 cites·9 claims
- 3091US6769507B2Electric power steering apparatusKOYO SEIKO CO·Filed 2003·Granted Aug 3, 2004·36 cites·16 claims
- 3191US6761244B2Electric power steering apparatusKOYO SEIKO CO·Filed 2003·Granted Jul 13, 2004·37 cites·17 claims
- 3291US6617734B2Magnetic bearing control deviceKOYO SEIKO CO·Filed 2001·Granted Sep 9, 2003·36 cites·20 claims
- 3391US6464061B1Clutch deviceKOYO SEIKO CO·Filed 2000·Granted Oct 15, 2002·30 cites·12 claims
- 3491US6428236B2Expansion shaftKOYO SEIKO CO·Filed 2000·Granted Aug 6, 2002·36 cites·18 claims
- 3590US7102322B2Motor controllerKOYO SEIKO CO·Filed 2005·Granted Sep 5, 2006·26 cites·8 claims
- 3690US6389342B1Steering apparatus for vehicleKOYO SEIKO CO·Filed 2000·Granted May 14, 2002·63 cites·16 claims
- 3790US6350059B1Thrust dynamic pressure bearing with varying depth groovesKOYO SEIKO CO·Filed 2000·Granted Feb 26, 2002·27 cites·1 claims
- 3890US6349789B1Steering device for vehiclesKOYO SEIKO CO·Filed 1998·Granted Feb 26, 2002·55 cites·16 claims
- 3990US6059068ASteering apparatus for a vehicleKOYO SEIKO CO·Filed 1997·Granted May 9, 2000·72 cites·8 claims
- 4090US5941355AOne-way clutchKOYO SEIKO CO·Filed 1997·Granted Aug 24, 1999·46 cites·1 claims
- 4190US5303156AElectric power steering apparatus having overload protectionKOYO SEIKO CO·Filed 1992·Granted Apr 12, 1994·67 cites·20 claims
- 4290US5040629AMotor-driven power steering apparatusKOYO SEIKO CO·Filed 1990·Granted Aug 20, 1991·74 cites·11 claims
- 4390US4523862ATapered roller bearingKOYO SEIKO CO·Filed 1984·Granted Jun 18, 1985·52 cites·14 claims
- 4489US7143881B2Pulley unit having one-way clutchKOYO SEIKO CO·Filed 2002·Granted Dec 5, 2006·30 cites·21 claims
- 4589US6896090B2Vehicle steering deviceKOYO SEIKO CO·Filed 2003·Granted May 24, 2005·43 cites·20 claims
- 4689US6216814B1Power steering apparatusKOYO SEIKO CO·Filed 1999·Granted Apr 17, 2001·65 cites·3 claims
- 4789US5335176ASafety system for vehiclesKOYO SEIKO CO·Filed 1992·Granted Aug 2, 1994·79 cites·2 claims
- 4889US5253733AOil and air lubrication deviceKOYO SEIKO CO·Filed 1992·Granted Oct 19, 1993·52 cites·2 claims
- 4989US4774851AApparatus for adjusting position of steering wheelKOYO SEIKO CO·Filed 1987·Granted Oct 4, 1988·57 cites·18 claims
- 5089US4194411ASteering column support assemblyKOYO SEIKO CO·Filed 1978·Granted Mar 25, 1980·38 cites·14 claims
Showing the top 50 of 787 patent records by PatentIndex Score.
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