Assignee
JAPAN SERVO
JP150 patents
Top patents by PatentIndex Score
US5874795AFeb 23, 1999
Multi-phase permanent-magnet type electric rotating machine
JAPAN SERVO123 citations98
US6335582B1Jan 1, 2002
Permanent-magnet revolving electrodynamic machine with a concentrated winding stator
JAPAN SERVO126 citations97
US6329729B1Dec 11, 2001
Hybrid stepping motor
JAPAN SERVO32 citations96
US6179569B1Jan 30, 2001
Liquid transportation apparatus
JAPAN SERVO88 citations96
US6121712ASep 19, 2000
Three-phase permanent magnet cascade claw type stepping motor
JAPAN SERVO52 citations96
US6028377AFeb 22, 2000
Three-phase permanent magnet cascade claw type stepping motor
JAPAN SERVO56 citations96
US5854526ADec 29, 1998
Three-phase permanent-magnet electric rotating machine
JAPAN SERVO74 citations96
US5532531AJul 2, 1996
Permanent magnet type brushless motor
JAPAN SERVO77 citations96
US5386161AJan 31, 1995
Permanent magnet stepping motor
JAPAN SERVO92 citations96
US5289064AFeb 22, 1994
Three-phase permanent magnet stepping motor
JAPAN SERVO63 citations96
US4983867AJan 8, 1991
Hybrid-type stepping motor
JAPAN SERVO63 citations96
US4384226AMay 17, 1983
Small-sized electric motor
JAPAN SERVO65 citations96
US5652606AJul 29, 1997
Message card
JAPAN SERVO83 citations95
US5502463AMar 26, 1996
Message card
JAPAN SERVO56 citations95
US6575936B1Jun 10, 2003
Liquid infusion apparatus
JAPAN SERVO52 citations94
US6313558B1Nov 6, 2001
Electric rotary machine having concentrated winding stator
JAPAN SERVO83 citations94
US6153953ANov 28, 2000
Multi-phase PM-type stepping motor
JAPAN SERVO94 citations94
US5128570AJul 7, 1992
Permanent magnet type stepping motor
JAPAN SERVO57 citations94
US7242118B2Jul 10, 2007
Toroidal-coil linear stepping motor, toroidal-coil linear reciprocating motor, cylinder compressor and cylinder pump using these motors
JAPAN SERVO50 citations93
US6765321B2Jul 20, 2004
Three-phase toroidal coil type permanent magnet electric rotating machine
JAPAN SERVO52 citations93
US6670732B2Dec 30, 2003
Magnet type stepping motor
JAPAN SERVO24 citations93
US6504272B2Jan 7, 2003
Multi-phase electric rotating machine having toroidal coils and using method thereof
JAPAN SERVO25 citations93
US6477918B2Nov 12, 2002
Rotary electric machine having coaxial output hollow shaft with reduction gear and slip ring
JAPAN SERVO46 citations93
US6160330ADec 12, 2000
Three-phase stepping motor and driving method therefor
JAPAN SERVO56 citations93
US6051898AApr 18, 2000
Stepping motor having external rotor and electromagnetic-combined-permanent-magnet stator
JAPAN SERVO20 citations93
US5780944AJul 14, 1998
Two-phase permanent-magnet electric rotating machine
JAPAN SERVO33 citations93
US5243246ASep 7, 1993
Connector assembly for a rotary electric machine
JAPAN SERVO35 citations93
US5032747AJul 16, 1991
Stepping motor
JAPAN SERVO31 citations93
US4503368AMar 5, 1985
Permanent magnet type stepping motor
JAPAN SERVO49 citations93
US4499391AFeb 12, 1985
End bracket for motor
JAPAN SERVO31 citations93
US4347457AAug 31, 1982
Permanent magnet type stepping motor
JAPAN SERVO35 citations93
US7713036B2May 11, 2010
Roller-type liquid pumping apparatus with improved installation capability
JAPAN SERVO22 citations92
US7487645B2Feb 10, 2009
Automatic icemaker
JAPAN SERVO33 citations92
US6893521B2May 17, 2005
Double-side lamination system
JAPAN SERVO28 citations92
US6762526B2Jul 13, 2004
Multi-phase flat-type PM stepping motor and driving circuit thereof
JAPAN SERVO35 citations92
US6605883B2Aug 12, 2003
Multi-phase flat-type PM stepping motor and driving circuit thereof
JAPAN SERVO58 citations92
US6508399B2Jan 21, 2003
Proximity type contactless IC card issuance machine
JAPAN SERVO31 citations92
US5964576AOct 12, 1999
Impeller of centrifugal fan
JAPAN SERVO52 citations92
US5690439ANov 25, 1997
Thermal transfer printing apparatus
JAPAN SERVO28 citations92
US5410200AApr 25, 1995
Hybrid type stepping motor
JAPAN SERVO65 citations92
US6850027B2Feb 1, 2005
Stepping motor driver
JAPAN SERVO19 citations91
US6703803B2Mar 9, 2004
Fan motor driving circuit
JAPAN SERVO55 citations91
US4496887AJan 29, 1985
Direct-current brushless motor
JAPAN SERVO33 citations91
US4357563ANov 2, 1982
Direct current brushless electric motor
JAPAN SERVO29 citations91
USD570471SJun 3, 2008
Part of a propeller for an axial flow fan
JAPAN SERVO22 citations90
USD564653SMar 18, 2008
Propeller for an axial flow fan
JAPAN SERVO35 citations90
US6791291B2Sep 14, 2004
Multi-joint type industrial robot and arm unit thereof
JAPAN SERVO24 citations90
US6674187B2Jan 6, 2004
Hybrid stepping motor
JAPAN SERVO27 citations90
US6217094B1Apr 17, 2001
Object holding device
JAPAN SERVO71 citations90
US6121987ASep 19, 2000
Thermal transfer recording apparatus
JAPAN SERVO33 citations90
Showing the top 50 of 150 patents by PatentIndex Score.