Inventor · disambiguated record
Sakae Fujitani
Also filed as: FUJITANI SAKAE
57 granted patents·2 pending applications·1,676 citations·filing 1988–2016
99Inventor score
Top patents by PatentIndex Score
59 records- 0197US6177751B1Rotary electric machine and bobbin thereofMINEBEA CO LTD·Filed 1999·Granted Jan 23, 2001·125 cites·14 claims
- 0294US5095238ABrushless dc motor and rotor magnetMINEBEA CO LTD·Filed 1990·Granted Mar 10, 1992·96 cites·10 claims
- 0392US6166468ARotary electric machine and bearing structure thereofMINEBEA CO LTD·Filed 1999·Granted Dec 26, 2000·84 cites·8 claims
- 0491US6960847B2Electromagnetic actuator and composite electromagnetic actuator apparatusMINEBEA CO LTD·Filed 2001·Granted Nov 1, 2005·36 cites·15 claims
- 0591US4891567ABrushless DC motor having an outer rotorMINEBEA CO LTD·Filed 1988·Granted Jan 2, 1990·82 cites·20 claims
- 0690US5847483APulse generatorMINEBEA CO LTD·Filed 1997·Granted Dec 8, 1998·74 cites·18 claims
- 0789US6081058AMotor structure having a permanent magnet motor with grooves to reduce torque ripplesMINEBEA CO LTD·Filed 1996·Granted Jun 27, 2000·73 cites·4 claims
- 0885US6331746B1ActuatorMINEBEA CO LTD·Filed 2000·Granted Dec 18, 2001·27 cites·12 claims
- 0984US5739614ATwo-phase unipolar driving brushless DC motorMINEBEA CO LTD·Filed 1997·Granted Apr 14, 1998·56 cites·6 claims
- 1083US6882073B2Linear type actuatorMINEBEA CO LTD·Filed 2004·Granted Apr 19, 2005·22 cites·14 claims
- 1183US6411006B2Electric rotary machineMINEBERA CO LTD·Filed 2001·Granted Jun 25, 2002·34 cites·12 claims
- 1282US7145423B2Electromagnetic actuator and composite electromagnetic actuator apparatusMINEBEA CO LTD·Filed 2005·Granted Dec 5, 2006·9 cites·5 claims
- 1382US6087755ARadial gap type cylindrical motorMINEBEA CO LTD·Filed 1998·Granted Jul 11, 2000·51 cites·37 claims
- 1481US6455962B2Terminal structure of a motorMINEBEA CO LTD·Filed 2001·Granted Sep 24, 2002·30 cites·10 claims
- 1580US6288507B1Motor drive circuitMINEBEA CO LTD·Filed 1999·Granted Sep 11, 2001·42 cites·20 claims
- 1680US5801463ADynamoelectric machineMINEBEA CO LTD·Filed 1997·Granted Sep 1, 1998·48 cites·13 claims
- 1779US6133655AClaw-pole stepping motor with rotor including vibration reducing magnetMINEBEA CO LTD·Filed 1997·Granted Oct 17, 2000·46 cites·11 claims
- 1878US6346759B1Stator structure of highspeed motorMINEBEA CO LTD·Filed 2000·Granted Feb 12, 2002·23 cites·10 claims
- 1978US5852335AStator structure for rotary electric machineMINEBEA CO LTD·Filed 1997·Granted Dec 22, 1998·44 cites·10 claims
- 2078US5705871APulse generator having index angles formed by permanent magnet rotorMINEBEA CO LTD·Filed 1996·Granted Jan 6, 1998·33 cites·11 claims
- 2176US6856065B2Electric rotary machine having positioning ring for securing salient poles in placeMINEBEA CO LTD·Filed 2003·Granted Feb 15, 2005·21 cites·4 claims
- 2276US5962947AMotor structureMINEBEA CO LTD·Filed 1997·Granted Oct 5, 1999·43 cites·7 claims
- 2375US6194806B1Compact cylindrical radial gap type motorMINEBEA CO LTD·Filed 1999·Granted Feb 27, 2001·41 cites·11 claims
- 2475US5304879AOuter rotor motorMINEBEA CO LTD·Filed 1992·Granted Apr 19, 1994·24 cites·5 claims
- 2574US6201324B1Stator pole teeth for a claw pole stepping motorMINEBEA CO LTD·Filed 1999·Granted Mar 13, 2001·37 cites·16 claims
- 2671US5508578AStator unit of flat motorMINEBEA CO LTD·Filed 1994·Granted Apr 16, 1996·33 cites·7 claims
- 2768US9787234B2Drive controller of instrumentMINEBEA CO LTD·Filed 2016·Granted Oct 10, 2017·1 cites·18 claims
- 2868US6031304AMotor structureMINEBEA CO LTD·Filed 1998·Granted Feb 29, 2000·32 cites·6 claims
- 2967US6057621ACylindrical radial gap type motor structureMINEBEA CO LTD·Filed 1998·Granted May 2, 2000·29 cites·11 claims
- 3065US6815861B2Electric rotary machine with armature of discrete salient pole structureMINEBEA KK·Filed 2003·Granted Nov 9, 2004·12 cites·3 claims
- 3165US5929589AStepping motor drive and a method of driving sameMINEBEA CO LTD·Filed 1997·Granted Jul 27, 1999·38 cites·13 claims
- 3263US6809438B2Permanent magnet stepping motor having pole teeth misaligned by an electrical angleMINEBEA CO LTD·Filed 2002·Granted Oct 26, 2004·11 cites·10 claims
- 3362US6236135B1Toroidal core type actuator with phase separatorMINEBEA CO LTD·Filed 1999·Granted May 22, 2001·21 cites·8 claims
- 3461US5866961AMotor structureMINEBEA CO LTD·Filed 1996·Granted Feb 2, 1999·25 cites·2 claims
- 3560US6717319B2Electric rotary machine with armature of discrete salient pole structureMINEBEA CO LTD·Filed 2003·Granted Apr 6, 2004·9 cites·4 claims
- 3660US6320288B1Brushless DC motorMINEBEA CO LTD·Filed 1996·Granted Nov 20, 2001·23 cites·7 claims
- 3759US6122234ARecording disk drive using a synchronous driving motorMINEBEA CO LTD·Filed 1996·Granted Sep 19, 2000·14 cites·14 claims
- 3858US6299129B1Actuator device with valveMINEBEA CO LTD·Filed 1999·Granted Oct 9, 2001·20 cites·18 claims
- 3957US6140726ARadial gap cylindrical motor having an increased number of slotsMINEBEA CO LTD·Filed 1998·Granted Oct 31, 2000·21 cites·8 claims
- 4057US5442247AOuter-rotor type spindle motor with a reduced thickness in the axial directionMINEBEA KK·Filed 1994·Granted Aug 15, 1995·14 cites·1 claims
- 4156US6065231AMotor drive method and drive circuitMINEBEA CO LTD·Filed 1998·Granted May 23, 2000·12 cites·8 claims
- 4256US6060800AMotor structureMINEBEA CO LTD·Filed 1998·Granted May 9, 2000·23 cites·9 claims
- 4355US6765320B1ActuatorMINEBEA CO LTD·Filed 2000·Granted Jul 20, 2004·7 cites·11 claims
- 4455US5875069AClaw-pole synchronous motor for driving a storage deviceMINEBEA CO LTD·Filed 1997·Granted Feb 23, 1999·11 cites·18 claims
- 4555US5834866AMotor structureMINEBEA CO LTD·Filed 1996·Granted Nov 10, 1998·21 cites·4 claims
- 4650US7049723B2DC motorMINEBEA CO LTD·Filed 2002·Granted May 23, 2006·5 cites·14 claims
- 4747US6756871B1Actuator with number of stator teeth equal to number of rotor polesMINEBEA CO LTD·Filed 1999·Granted Jun 29, 2004·14 cites·19 claims
- 4846US5880569AMotor for use in information recording deviceMINEBEA CO LTD·Filed 1997·Granted Mar 9, 1999·7 cites·20 claims
- 4944US6013965AMotor structureMINEBEA CO LTD·Filed 1996·Granted Jan 11, 2000·11 cites·11 claims
- 5044US5336955AOuter - rotor type spindle motorMINEBEA CO LTD·Filed 1992·Granted Aug 9, 1994·9 cites·2 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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