TBK CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS569
 
  
 
F03C POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS 321
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 344
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 384
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 227
 
  
 
F01P COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES 238
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 260
 
  
 
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 192
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 175
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 164

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0268,526 IMPELLER FOR FLUID PUMPAug 28, 14Sep 21, 17[F04D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9777828 Fluid supply deviceDec 17, 12Oct 03, 17[F16H]
9742343 Electric pumpOct 04, 13Aug 22, 17[H02P, F04B, F04C, F04D]
9579982 Resonant motor systemApr 16, 14Feb 28, 17[H02K, B60K, H02P, B60L]
9353744 Vane-type hydraulic device having vane formed with engaging grooveOct 18, 11May 31, 16[F04C, F03C, F01C]
9188031 Engine lubricating oil supply deviceDec 07, 09Nov 17, 15[F01M]
8979474 Variable flow rate pumpJun 25, 09Mar 17, 15[F01P, F04D, F01D]
8757993 Gear pump with fluid communication portionJun 25, 09Jun 24, 14[F04C, F03C]
8689950 Electromagnetic type retarderFeb 18, 11Apr 08, 14[H02K, B60L]
8376724 Gear pump enabling efficient pump capacity changeAug 10, 07Feb 19, 13[F04C, F03C]
7775765 Fluid pumpAug 03, 05Aug 17, 10[F04D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0230,826 DISC BRAKE DEVICEAbandonedSep 19, 13Aug 11, 16[F16D]
2016/0064,135 ELECTROMAGNETIC COIL FOR RETARDERAbandonedSep 03, 14Mar 03, 16[H01F]
2015/0333,665 ELECTROMAGNETIC TYPE RETARDER WITH MULTI-FUNCTIONSAbandonedMar 03, 14Nov 19, 15[H02K, H02P]
2015/0184,707 DISK BRAKE DEVICEAbandonedJul 05, 12Jul 02, 15[F16D]
2015/0159,712 DISK BRAKE DEVICEAbandonedJul 05, 12Jun 11, 15[F16D]
2015/0136,539 DISK BRAKE DEVICEAbandonedJul 05, 12May 21, 15[F16D]
2015/0129,376 ELECTROMAGNETIC TYPE RETARDERAbandonedNov 14, 13May 14, 15[H02K]
2014/0083,804 DISK BRAKE DEVICEAbandonedMay 02, 12Mar 27, 14[F16D]
2014/0079,375 ELECTRIC HEATING DEVICE AND ELECTRIC VEHICLEAbandonedMay 25, 12Mar 20, 14[F24H, B60H]
8575878 Energy converterExpiredNov 26, 09Nov 05, 13[H02P]
2008/0107,545 Tandem Pump No-Load Operation DeviceAbandonedAug 03, 05May 08, 08[F04B, F04C]
6412607 Brake lining wear detection apparatusExpiredJan 11, 01Jul 02, 02[F16D]
5971112 Drum brake assembly and brake shoes for sameExpiredJul 25, 97Oct 26, 99[F16D]
5054587 Eddy-current brakeExpiredJun 28, 90Oct 08, 91[H02K, F16D, F16F]

Top Inventors for This Owner

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