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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →