TOKYO ROKI CO., LTD.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01D SEPARATION 17117
 
  
 
F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING 924
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 766
 
  
 
B04B CENTRIFUGES 423
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 2107
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 281
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 250
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 144

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0029,045 OIL SEPARATORMar 02, 15Feb 01, 18[B04B, F01M, B01D]
2018/0029,046 SEPARATION DISK AND OIL SEPARATORMar 02, 15Feb 01, 18[B04B, B01D]
2017/0001,133 OIL SEPARATORFeb 25, 14Jan 05, 17[F01M, B01D]
2016/0375,387 OIL SEPARATORFeb 25, 14Dec 29, 16[F01M, B01D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9677507 Oil separatorDec 19, 12Jun 13, 17[F02M, F01M, B01D]
9364792 Catalyst, method and apparatus for removing nitrogen oxideAug 23, 07Jun 14, 16[B01J, B01D]
9260992 Oil mist separatorJun 24, 10Feb 16, 16[F01M, B01D]
8979967 Filter device for gasJan 24, 13Mar 17, 15[F02M, B01D]
8844611 Plate stacking type heat exchangerJun 16, 08Sep 30, 14[F28D, F28F]
8794303 Plate laminate type heat exchangerJul 23, 07Aug 05, 14[F28F]
8353152 Exhaust emission control deviceNov 20, 08Jan 15, 13[F01N]
8316987 Muffling structure of vent pipe and muffling structure of caseFeb 23, 09Nov 27, 12[F01N]
8272430 Plate laminate type heat exchangerJul 23, 07Sep 25, 12[F28F]
8181446 Exhaust emission purification apparatus for engineNov 16, 07May 22, 12[F01N]

View all patents..

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0008,282 OIL FILTER AND FILTER ELEMENTAbandonedJun 04, 10Jan 09, 14[B01D]
2012/0122,663 PROCESS FOR PRODUCING CATALYST FOR EXHAUST GAS PURIFICATION AND CATALYST FOR EXHAUST GAS PURIFICATIONAbandonedAug 22, 08May 17, 12[B01J]
8161737 Apparatus for and method of purifying exhaust gasExpiredApr 29, 10Apr 24, 12[F01N]
2011/0311,425 COMPLEX OXIDE AND METHOD FOR PRODUCING THE SAME, AND CATALYST, METHOD AND APPARATUS FOR PURIFYING NITROGEN OXIDEAbandonedAug 23, 07Dec 22, 11[B01J, B01D]
2011/0185,710 EXHAUST GAS PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINE, AND SWIRL GENERATING DEVICEAbandonedAug 31, 09Aug 04, 11[F01N]
2007/0227,108 HYDROCARBON FILTER, FRAME FOR FIXING HYDROCARBON FILTER, AND AIR CLEANERAbandonedMar 27, 07Oct 04, 07[B01D]
2007/0175,204 SCR mufflerAbandonedFeb 02, 05Aug 02, 07[F01N]
2006/0217,263 Exhaust gas purification catalystAbandonedMar 09, 06Sep 28, 06[B01J]
6180558 Material for exhaust gas purifying catalyst, exhaust gas purifying catalyst made of the material and method for producing the exhaust gas purifying catalystExpiredMar 31, 97Jan 30, 01[B01J]
5900140 Fuel filter module with C-shaped cross-section filterExpiredJun 30, 97May 04, 99[B01D]
5332554 Exhaust purifying catalyst for use in an internal combustion engine and method of manufacturing sameExpiredOct 14, 92Jul 26, 94[B01D]
5208206 Method of manufacturing an exhaust gas purifying catalystExpiredMar 27, 91May 04, 93[B01J]
4673503 Variant length pleated filter elementExpiredNov 12, 85Jun 16, 87[B01D]
4655921 Filter elementExpiredFeb 25, 85Apr 07, 87[B01D]
4631076 Apparatus for removing carbon particles from exhaust gas from internal combustion engineExpiredNov 27, 84Dec 23, 86[B01D]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.