Tochigi Fuji Sangyo Kabushiki Kaisha

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16H GEARING4359
 
  
 
B60K ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES 1479
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 1279
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B62B HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES 127
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 128
 
  
 
F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING 132

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7464626 Torque transmission apparatus and case structureMar 20, 07Dec 16, 08[F16H]
7455612 Rotatively driving apparatusFeb 25, 05Nov 25, 08[F16H]
7325664 Electromagnetic actuator, and electromagnetic clutch and differential using the sameJun 15, 05Feb 05, 08[F16D]
7326142 Partition structure of power train deviceMay 06, 05Feb 05, 08[F16H]
7296644 Reduction-drive deviceJul 08, 04Nov 20, 07[B60K]
7223191 Power transmission system and operation method thereofMar 21, 06May 29, 07[F16H]
7216751 Torque transmission couplingMar 31, 04May 15, 07[B60K]
7094172 Differential and differential systemJul 30, 04Aug 22, 06[F16H]
7086978 Power transmission system and operation method thereforFeb 03, 04Aug 08, 06[F16H]
7081065 Differential apparatusFeb 19, 04Jul 25, 06[F16H]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0192,007 Casing Structure for Torque Transmission DeviceAbandonedApr 03, 09Jul 30, 09[F16H]
7452299 Coupling apparatusExpiredSep 29, 05Nov 18, 08[F16H]
7354374 Differential unitExpiredSep 06, 05Apr 08, 08[F16H]
7223192 DifferentialExpiredAug 04, 04May 29, 07[F16H]
7210565 Torque transmission apparatus and case structureExpiredSep 29, 04May 01, 07[B60K]
7156771 Clutch unitExpiredAug 13, 04Jan 02, 07[B60K]
2006/0219,037 Support structure and gear mechanism having the sameAbandonedApr 16, 04Oct 05, 06[F16H]
2006/0186,605 Seal structure for relatively rotational membersAbandonedApr 20, 06Aug 24, 06[F16J]
7083033 Torque transmission apparatusExpiredMar 24, 04Aug 01, 06[F16D]
7056256 Differential apparatusExpiredMar 04, 04Jun 06, 06[F16H]
6997294 Electromagnetic clutch deviceExpiredDec 08, 03Feb 14, 06[F16D]
2006/0014,602 Motor power train and method of assembling the sameAbandonedAug 11, 05Jan 19, 06[F16H]
6966863 ActuatorExpiredMar 25, 03Nov 22, 05[F16H]
6959799 Actuator and intermissive power transmission device therewithExpiredAug 05, 03Nov 01, 05[F16H]
2005/0009,662 Casing structure for torque transmission deviceAbandonedAug 04, 04Jan 13, 05[F16H]
6837821 DifferentialExpiredMay 13, 03Jan 04, 05[F16H]
6832972 Differential and differential systemExpiredOct 03, 01Dec 21, 04[F16H]
6827661 Clutch system and differential with sameExpiredFeb 25, 03Dec 07, 04[F16H]
6796412 Differential apparatusExpiredNov 27, 02Sep 28, 04[F16D]
6793603 Power transmission system with sub transmission mechanismExpiredOct 23, 02Sep 21, 04[B60K, F16H]

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