JAPAN SERVO CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 2582
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS668
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 681
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 596
 
  
 
F25C PRODUCTION, WORKING, STORING OR DISTRIBUTION OF ICE 421
 
  
 
2304 VENTILATION AND AIR-CONDITIONING EQUIPMENT232
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 1101
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 169
 
  
 
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION158
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS198

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7728543 Stepping motor controlling deviceMar 15, 07Jun 01, 10[H02P]
7714466 Claw-teeth-type rotating electrical machineJul 24, 07May 11, 10[H02K]
7714475 Multiple phase claw pole type motorMar 16, 06May 11, 10[H02K]
7665316 Automatic icemakerMay 12, 06Feb 23, 10[F25C]
7622838 Axial fan motorApr 09, 07Nov 24, 09[H02K]
7605517 Claw pole rotating electric machineSep 27, 06Oct 20, 09[H02K]
7592734 Three-phase permanent magnet brushless motorAug 17, 06Sep 22, 09[H02K]
7567044 Braking device for an electrically driven rotorMar 21, 07Jul 28, 09[H02P]
7470108 Axial flow fanApr 20, 05Dec 30, 08[F04D]
7446441 Outer rotor type hybrid stepping motorAug 19, 04Nov 04, 08[H02K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7845180 Automatic icemakerExpiredMar 12, 07Dec 07, 10[F25C]
7713036 Roller-type liquid pumping apparatus with improved installation capabilityExpiredSep 23, 05May 11, 10[F04B]
7649298 Claw teeth type electric rotary machine and manufacturing method for statorsExpiredJul 24, 07Jan 19, 10[H02K]
7626301 Electric rotating machine having permanent magnets and method of manufacturing teeth portions of the stator iron coreExpiredSep 22, 05Dec 01, 09[H02K]
2009/0108,713 Outer Rotor Type Hybrid Stepping MotorAbandonedOct 29, 08Apr 30, 09[H02K]
7487645 Automatic icemakerExpiredDec 23, 05Feb 10, 09[F25C]
7385321 Motor having shifted teeth of pressed powder constructionExpiredNov 20, 06Jun 10, 08[]
7342330 Hybrid type double three-phase electric rotating machineExpiredOct 04, 05Mar 11, 08[H02K]
2008/0038,122 ELECTRIC AXIAL FLOW PUMPAbandonedJul 20, 07Feb 14, 08[F04D]
2008/0018,194 CLAW-POLE TYPE SINGEL-PHASE MOTOR, CLAW-POLE TYPE SINGLE-PHASE MOTOR SYSTEM AND ELECTRIC PUMP, ELECTRIC FAN AND VEHICLE PROVIDED WITH CLAW-POLE TYPE SINGLE-PHASE MOTORAbandonedJul 20, 07Jan 24, 08[H02K, H02P]
2008/0018,289 SINGLE-PHASE POSITION SENSORLESS PERMANENT MAGNET MOTOR CONTROL APPARATUSAbandonedJul 19, 07Jan 24, 08[H02P]
2007/0241,644 SINGLE-PHASE MOTORAbandonedApr 12, 07Oct 18, 07[H02K]
2007/0227,164 Automatic icemakerAbandonedMar 15, 07Oct 04, 07[F25C]
2007/0231,130 CENTRIFUGAL FANAbandonedMar 13, 07Oct 04, 07[F04D]
2007/0231,145 Multiple Fans of Cascade ConnectionAbandonedMar 15, 07Oct 04, 07[B64C]
2007/0219,495 Control System for Liquid Infusion ApparatusAbandonedMar 15, 07Sep 20, 07[A61M]
7268536 Magnetic linear position sensorExpiredJan 06, 05Sep 11, 07[G01B]
7250698 Multi-phase claw-pole type rotary machineExpiredOct 27, 05Jul 31, 07[H02K]
7242118 Toroidal-coil linear stepping motor, toroidal-coil linear reciprocating motor, cylinder compressor and cylinder pump using these motorsExpiredJul 30, 04Jul 10, 07[H02K]
2007/0145,854 MotorAbandonedDec 28, 06Jun 28, 07[H02K]

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