Hitachi Car Engineering Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01F MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME 6416
 
  
 
F02D CONTROLLING COMBUSTION ENGINES 3642
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 2879
 
  
 
F02P IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES 1723
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 1469
 
  
 
G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR859
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 8354
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 879
 
  
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS792
 
  
 
F16H GEARING694

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8766575 Synchronous electric motor drive systemJul 26, 11Jul 01, 14[H02P]
8302275 Iron core and method of manufacturing the same and apparatus for manufacturing the sameNov 20, 07Nov 06, 12[B23Q]
8305019 Torque controller for permanent magnet synchronous motorFeb 18, 10Nov 06, 12[H02P]
8242587 Electronic device and pressure sensorJul 22, 08Aug 14, 12[H01L]
8198775 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineNov 22, 10Jun 12, 12[H02K]
8106619 Position sensorless controller for permanent magnet motorDec 09, 08Jan 31, 12[H02P]
RE42940 Air flow rate control apparatusMay 26, 09Nov 22, 11[F16K, F02D]
RE42529 Thermal flow rate measuring deviceJun 03, 05Jul 12, 11[G01F]
7956506 Driving apparatusAug 14, 09Jun 07, 11[H02K]
7851959 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineMar 12, 09Dec 14, 10[H02K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0236,626 BRUSHLESS MOTOR CONTROL DEVICE AND BRUSHLESS MOTOR SYSTEMAbandonedMay 01, 15Aug 20, 15[H02P]
2012/0062,157 BRUSHLESS MOTOR CONTROL DEVICE AND BRUSHLESS MOTOR SYSTEMAbandonedAug 17, 11Mar 15, 12[H02H]
7919941 Semiconductor power converterExpiredAug 18, 08Apr 05, 11[H02P]
2010/0244,754 Sensorless-Brushless Motor Control Device and Electric Fluid Pump Using the SameAbandonedMar 01, 10Sep 30, 10[H02P, F04B]
7671502 Driving apparatusExpiredJul 24, 08Mar 02, 10[H02K]
7665976 High pressure fuel pump for internal combustion engineExpiredApr 24, 06Feb 23, 10[F04B, F01B, F16J]
7667365 Permanent magnet electric rotating machine and electromotive vehicle using permanent magnet electric rotating machineExpiredJul 18, 08Feb 23, 10[H02K]
7560896 Vector control apparatus for permanent magnet motorExpiredFeb 27, 07Jul 14, 09[H02P]
7530819 Device for controlling a vehicleExpiredOct 26, 07May 12, 09[H01R]
7395888 Vehicle drive deviceExpiredFeb 25, 05Jul 08, 08[H01H]
7383815 Air flow measuring device formed integrally with electronically controlled throttle bodyExpiredDec 29, 05Jun 10, 08[]
7347116 Automobile, and control unit and driving power train system for the sameExpiredNov 24, 04Mar 25, 08[F16H]
7316385 Throttle bodyExpiredNov 14, 05Jan 08, 08[F02D]
7303406 Device for controlling a vehicleExpiredMar 15, 06Dec 04, 07[H01R]
7290528 Exhaust gas recirculation device for internal combustion engineExpiredOct 23, 03Nov 06, 07[F02M]
7282810 Power supplying apparatus for vehicle and intensive wiring apparatusExpiredJul 15, 04Oct 16, 07[B60L]
7279855 Electric drive device for vehicle and hybrid engine/motor-type four wheel drive deviceExpiredApr 02, 04Oct 09, 07[H02K]
7260992 Pressure sensor, flowmeter electronic component, and method for manufacturing the sameExpiredJan 17, 03Aug 28, 07[G01L]
2007/0197,953 Magnetic particles for therapeutic treatmentAbandonedJul 16, 04Aug 23, 07[A61N]
7247004 Electronically controlled actuatorExpiredJan 31, 03Jul 24, 07[F04B]

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