Assignee
JAPAN SERVO
JP·150 granted patents·13 pending applications·3,570 citations·filing 1974–2008
Top patents by PatentIndex Score
163 records- 0197US5874795AMulti-phase permanent-magnet type electric rotating machineJAPAN SERVO·Filed 1996·Granted Feb 23, 1999·123 cites·5 claims
- 0295US6335582B1Permanent-magnet revolving electrodynamic machine with a concentrated winding statorJAPAN SERVO·Filed 1998·Granted Jan 1, 2002·126 cites·8 claims
- 0394US7487645B2Automatic icemakerJAPAN SERVO·Filed 2005·Granted Feb 10, 2009·33 cites·13 claims
- 0494US5386161APermanent magnet stepping motorJAPAN SERVO·Filed 1993·Granted Jan 31, 1995·92 cites·9 claims
- 0594US4384226ASmall-sized electric motorJAPAN SERVO·Filed 1981·Granted May 17, 1983·65 cites·9 claims
- 0693US7713036B2Roller-type liquid pumping apparatus with improved installation capabilityJAPAN SERVO·Filed 2005·Granted May 11, 2010·22 cites·9 claims
- 0793US7242118B2Toroidal-coil linear stepping motor, toroidal-coil linear reciprocating motor, cylinder compressor and cylinder pump using these motorsJAPAN SERVO·Filed 2004·Granted Jul 10, 2007·50 cites·9 claims
- 0893US6765321B2Three-phase toroidal coil type permanent magnet electric rotating machineJAPAN SERVO·Filed 2002·Granted Jul 20, 2004·52 cites·12 claims
- 0993US6329729B1Hybrid stepping motorJAPAN SERVO·Filed 2000·Granted Dec 11, 2001·32 cites·7 claims
- 1093US6313558B1Electric rotary machine having concentrated winding statorJAPAN SERVO·Filed 2000·Granted Nov 6, 2001·83 cites·4 claims
- 1193US6028377AThree-phase permanent magnet cascade claw type stepping motorJAPAN SERVO·Filed 1998·Granted Feb 22, 2000·56 cites·2 claims
- 1292US6121712AThree-phase permanent magnet cascade claw type stepping motorJAPAN SERVO·Filed 1999·Granted Sep 19, 2000·52 cites·3 claims
- 1391US6477918B2Rotary electric machine having coaxial output hollow shaft with reduction gear and slip ringJAPAN SERVO·Filed 2001·Granted Nov 12, 2002·46 cites·9 claims
- 1491US6153953AMulti-phase PM-type stepping motorJAPAN SERVO·Filed 1998·Granted Nov 28, 2000·94 cites·5 claims
- 1591US5532531APermanent magnet type brushless motorJAPAN SERVO·Filed 1994·Granted Jul 2, 1996·77 cites·11 claims
- 1690US6703803B2Fan motor driving circuitJAPAN SERVO·Filed 2002·Granted Mar 9, 2004·55 cites·3 claims
- 1790US6605883B2Multi-phase flat-type PM stepping motor and driving circuit thereofJAPAN SERVO·Filed 2002·Granted Aug 12, 2003·58 cites·17 claims
- 1890US5854526AThree-phase permanent-magnet electric rotating machineJAPAN SERVO·Filed 1996·Granted Dec 29, 1998·74 cites·12 claims
- 1989US6670732B2Magnet type stepping motorJAPAN SERVO·Filed 2002·Granted Dec 30, 2003·24 cites·6 claims
- 2089US6552453B2Magnetic pole position detector for an electric motorJAPAN SERVO·Filed 2001·Granted Apr 22, 2003·51 cites·26 claims
- 2189US4503368APermanent magnet type stepping motorJAPAN SERVO·Filed 1983·Granted Mar 5, 1985·49 cites·4 claims
- 2288US5289064AThree-phase permanent magnet stepping motorJAPAN SERVO·Filed 1992·Granted Feb 22, 1994·63 cites·5 claims
- 2387US6893521B2Double-side lamination systemJAPAN SERVO·Filed 2004·Granted May 17, 2005·28 cites·30 claims
- 2487US4983867AHybrid-type stepping motorJAPAN SERVO·Filed 1990·Granted Jan 8, 1991·63 cites·8 claims
- 2587US4306259AFlexible-disc drive spindle assembly with brushless DC motorJAPAN SERVO·Filed 1979·Granted Dec 15, 1981·36 cites·7 claims
- 2686US7626301B2Electric rotating machine having permanent magnets and method of manufacturing teeth portions of the stator iron coreJAPAN SERVO·Filed 2005·Granted Dec 1, 2009·12 cites·7 claims
- 2786US7207774B2Centrifugal fan and casing thereofJAPAN SERVO·Filed 2005·Granted Apr 24, 2007·29 cites·14 claims
- 2886US6762526B2Multi-phase flat-type PM stepping motor and driving circuit thereofJAPAN SERVO·Filed 2002·Granted Jul 13, 2004·35 cites·10 claims
- 2985US7665316B2Automatic icemakerJAPAN SERVO·Filed 2006·Granted Feb 23, 2010·16 cites·10 claims
- 3085USD564653SPropeller for an axial flow fanJAPAN SERVO·Filed 2007·Granted Mar 18, 2008·35 cites·1 claims
- 3185US5652606AMessage cardJAPAN SERVO·Filed 1995·Granted Jul 29, 1997·83 cites·15 claims
- 3284US5410200AHybrid type stepping motorJAPAN SERVO·Filed 1993·Granted Apr 25, 1995·65 cites·5 claims
- 3383US6217094B1Object holding deviceJAPAN SERVO·Filed 2000·Granted Apr 17, 2001·71 cites·5 claims
- 3483US6160330AThree-phase stepping motor and driving method thereforJAPAN SERVO·Filed 1998·Granted Dec 12, 2000·56 cites·10 claims
- 3583US5128570APermanent magnet type stepping motorJAPAN SERVO·Filed 1991·Granted Jul 7, 1992·57 cites·2 claims
- 3682US5964576AImpeller of centrifugal fanJAPAN SERVO·Filed 1997·Granted Oct 12, 1999·52 cites·1 claims
- 3782US5502463AMessage cardJAPAN SERVO·Filed 1993·Granted Mar 26, 1996·56 cites·2 claims
- 3880US6508399B2Proximity type contactless IC card issuance machineJAPAN SERVO·Filed 2001·Granted Jan 21, 2003·31 cites·7 claims
- 3980US6504272B2Multi-phase electric rotating machine having toroidal coils and using method thereofJAPAN SERVO·Filed 2000·Granted Jan 7, 2003·25 cites·14 claims
- 4080US4347457APermanent magnet type stepping motorJAPAN SERVO·Filed 1980·Granted Aug 31, 1982·35 cites·2 claims
- 4179US7268536B2Magnetic linear position sensorJAPAN SERVO·Filed 2005·Granted Sep 11, 2007·11 cites·5 claims
- 4278US6674187B2Hybrid stepping motorJAPAN SERVO·Filed 2001·Granted Jan 6, 2004·27 cites·6 claims
- 4378US4499391AEnd bracket for motorJAPAN SERVO·Filed 1982·Granted Feb 12, 1985·31 cites·5 claims
- 4478US4496887ADirect-current brushless motorJAPAN SERVO·Filed 1983·Granted Jan 29, 1985·33 cites·3 claims
- 4577US6434293B1Rotary light couplerJAPAN SERVO·Filed 2000·Granted Aug 13, 2002·25 cites·9 claims
- 4676US7622838B2Axial fan motorJAPAN SERVO·Filed 2007·Granted Nov 24, 2009·8 cites·11 claims
- 4776US7132769B2Capacitor motor with terminal arrangementJAPAN SERVO·Filed 2005·Granted Nov 7, 2006·7 cites·5 claims
- 4876US6791291B2Multi-joint type industrial robot and arm unit thereofJAPAN SERVO·Filed 2002·Granted Sep 14, 2004·24 cites·3 claims
- 4976US6379098B1Chip feeder for chip mounterJAPAN SERVO·Filed 2000·Granted Apr 30, 2002·29 cites·21 claims
- 5076US6121987AThermal transfer recording apparatusJAPAN SERVO·Filed 1999·Granted Sep 19, 2000·33 cites·7 claims
Showing the top 50 of 163 patent records by PatentIndex Score.
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