TOKYO ELECTRIC POWER CO., INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B66B ELEVATORS; ESCALATORS OR MOVING WALKWAYS 721
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 365
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 371
 
  
 
C10J PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES 219
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 243
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 292
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 2360
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 275
 
  
 
A47B TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 151
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0177,016 Smart Power Flow Solvers for Smart Power GridsDec 21, 15Jun 22, 17[G05B, G05F]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9625191 Condensing apparatusApr 13, 12Apr 18, 17[F28B, F28D, F25B]
9494154 RefrigeratorMar 15, 11Nov 15, 16[F04B, F25B, F04C]
9243419 Support wire implanting anchorDec 10, 14Jan 26, 16[A47B, E04H]
9239164 Slag monitoring device for coal gasifier and coal gasifierSep 17, 10Jan 19, 16[F23J, C10J, F23N, F27D]
8049049 Method of upgrading biomass, upgraded biomass, biomass water slurry and method of producing same, upgraded biomass gas, and method of gasifying biomassNov 03, 08Nov 01, 11[C10L, C07C, C10B]
7176671 Current measuring deviceFeb 28, 03Feb 13, 07[G01R]
6533074 Elevator apparatus with rechargeable power supply and discharge controlAug 01, 02Mar 18, 03[B66B]
6522099 Elevator apparatus with rechargeable power supply and discharge controlAug 01, 02Feb 18, 03[B66B]
6460658 Elevator control apparatusJan 30, 01Oct 08, 02[B66B]
6454053 Elevator apparatus including rechargeable power supply and temperature sensitive charging controlJan 31, 01Sep 24, 02[B66B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0218,494 Systems for Real-Time Available Transfer Capability Determination of Large Scale Power SystemsAbandonedOct 11, 12Aug 22, 13[G01R]
2011/0318,697 GROUND FLAREAbandonedDec 18, 09Dec 29, 11[F23G]
2011/0240,715 WELDING PROCESS AND CORROSION-RESISTANT FILLER ALLOY AND CONSUMABLES THEREFORAbandonedMar 31, 10Oct 06, 11[B23K, C22C]
2011/0115,469 OPTICAL FIBER ELECTRIC CURRENT SENSOR, ELECTRIC CURRENT MEASUREMENT METHOD, AND FAULT ZONE DETECTION APPARATUSAbandonedJul 15, 09May 19, 11[G01R]
7890272 Torque measurement device and programExpiredJul 13, 06Feb 15, 11[G01L]
2010/0281,903 EVAPORATOR AND COOLING DEVICEAbandonedNov 20, 08Nov 11, 10[F28D, F25B]
2010/0253,320 OPTICAL FIBER ELECTRIC CURRENT SENSOR AND ELECTRIC CURRENT MEASUREMENT METHODAbandonedApr 24, 08Oct 07, 10[G01R]
2010/0226,469 ATOMIC REACTOR WATER SUPPLY PIPING STRUCTURE AND ULTRASONIC FLOWMETER SYSTEMAbandonedDec 25, 06Sep 09, 10[G21C]
2010/0218,618 DOPPLER TYPE ULTRASONIC FLOW METER, FLOW METERING METHOD, AND COMPUTER PROGRAMAbandonedJan 18, 07Sep 02, 10[G01F]
7786719 Optical sensor, optical current sensor and optical voltage sensorExpiredMar 01, 06Aug 31, 10[G01R]
2010/0194,379 OPTICAL FIBER ELECTRIC CURRENT MEASUREMENT APPARATUS AND ELECTRIC CURRENT MEASUREMENT METHODAbandonedApr 24, 08Aug 05, 10[G01R]
7735359 Process quantity measurement method and apparatus of engine outputExpiredNov 14, 05Jun 15, 10[G01M]
7712382 Doppler type ultrasonic flowmeter, flow rate measuring method using doppler type ultrasonic flowmeter and flow rate measuring program used in this doppler type ultrasonic flowmeterExpiredJun 03, 03May 11, 10[G01F]
2009/0315,402 AC-DC CONVERSION DEVICEAbandonedOct 04, 07Dec 24, 09[H02J]
2009/0288,499 Torque measurement device and programAbandonedJul 13, 06Nov 26, 09[G01L]
2009/0262,985 VIBRATION MEASURING SYSTEM, VIBRATION MEASURING METHOD, AND COMPUTER PROGRAMAbandonedOct 26, 06Oct 22, 09[G06K]
7589515 Method for reducing temperature-dependent error in photocurrent sensor, and photocurrent sensor deviceExpiredAug 17, 05Sep 15, 09[G01R, G02F]
7579712 Power system protection systemExpiredMar 16, 04Aug 25, 09[H02J]
2009/0185,900 WIND-DRIVEN ELECTRICITY GENERATION DEVICE, METHOD OF CONTROLLING WIND-DRIVEN ELECTRICITY GENERATION DEVICE, AND COMPUTER PROGRAMAbandonedApr 27, 06Jul 23, 09[F03D]
7509878 Ultrasonic cavitating apparatus and ultrasonic doppler flow measurement systemExpiredJun 09, 05Mar 31, 09[A61B, G01F]

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