NEC ENERGY DEVICES, LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 15843
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 3189
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 7152
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 571
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
  
 
H01G CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 462
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2123
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2204
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 272
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0053,925 SEPARATOR FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERYFeb 03, 16Feb 22, 18[H01M]
2017/0338,515 LITHIUM-ION SECONDARY BATTERYOct 09, 15Nov 23, 17[H01M]
2017/0331,091 BATTERYMay 28, 15Nov 16, 17[H01M]
2017/0331,110 METHOD OF PRODUCING PASTE FOR PRODUCTION OF NEGATIVE ELECTRODE, METHOD OF PRODUCING NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERYDec 17, 15Nov 16, 17[H01M, B01F]
2017/0324,115 POLYMER GEL ELECTROLYTE, LITHIUM ION BATTERY AND METHOD FOR PRODUCING SAMEJul 27, 17Nov 09, 17[H01M, H01B]
2017/0310,130 BATTERY CONTROL SYSTEM, BATTERY PACK, ELECTRONIC DEVICEJul 07, 17Oct 26, 17[H02J, H01M, G01R, B60L]
2017/0288,201 SECONDARY BATTERY AND ELECTRODE PRODUCTION METHODJun 21, 17Oct 05, 17[H01M]
2017/0222,213 METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR LITHIUM ION BATTERY AND METHOD FOR PRODUCING LITHIUM ION BATTERYJul 28, 15Aug 03, 17[H01M]
2017/0187,064 LITHIUM ION SECONDARY BATTERYMar 30, 15Jun 29, 17[H01M]
2017/0179,487 GRAPHITE-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERYMar 30, 15Jun 22, 17[H01M]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9923239 Lithium ion batteryMay 15, 12Mar 20, 18[H01M]
9899703 Gel electrolyte and polymer secondary battery using sameFeb 28, 14Feb 20, 18[H01M]
9876257 Secondary battery and electrode production methodDec 10, 13Jan 23, 18[H01M]
9871231 Film-covered batteryJun 17, 13Jan 16, 18[H01M]
9871238 Secondary batteryAug 27, 14Jan 16, 18[H01M]
9847180 Nonaqueous electrolyte solution, and lithium ion secondary battery having the sameDec 22, 15Dec 19, 17[H01M, H01G]
9847657 Battery systemJan 22, 14Dec 19, 17[H02J, H01M, G01R]
9831691 Power storage system and cell protection method which protects the cell by both cutting from the cell pack and the cell pack from the systemAug 07, 13Nov 28, 17[H02J, H01M]
9819201 Secondary battery pack connection control method for controlling connection of input and output terminals in power storage system comprising plurality of secondary battery packsMar 15, 16Nov 14, 17[H02J, H01M, B60L]
9793575 Polymer gel electrolyte, lithium ion battery and method for producing sameSep 03, 13Oct 17, 17[H01M, H01B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0164,147 BATTERY PACK WITH PROTECTIVE CIRCUIT BOARD AND ELECTRIC BICYCLE INCLUDING THE BATTERY PACKAbandonedFeb 09, 16Jun 09, 16[H01M]
2016/0104,872 BATTERY CELLAbandonedJun 27, 14Apr 14, 16[H01M]
2016/0049,691 ELECTROLYTIC SOLUTION FOR SECONDARY BATTERY AND SECONDARY BATTERY USING THE SAMEAbandonedMar 13, 13Feb 18, 16[H01M]
2016/0043,366 BATTERY PRODUCTION METHOD AND BATTERY MODULEAbandonedMar 18, 14Feb 11, 16[H01M]
2015/0207,347 STORAGE BATTERY DEVICEAbandonedMay 22, 12Jul 23, 15[H02J, G01R]
2015/0111,080 BATTERY APPARATUSAbandonedDec 30, 14Apr 23, 15[H01M]
2015/0048,795 CHARGE CONTROL APPARATUS AND CHARGE CONTROL METHODAbandonedMar 29, 13Feb 19, 15[H02J]
2015/0030,935 BATTERY ELECTRODE SUBSTRATE SHEETAbandonedFeb 07, 13Jan 29, 15[H01M]
2014/0193,710 NON-AQUEOUS ELECTROLYTE SECONDARY BATTERYAbandonedAug 30, 12Jul 10, 14[H01M]
2014/0159,664 METHOD OF MANUFACTURING BATTERY PACK AND BATTERY PACKAbandonedJul 03, 12Jun 12, 14[H02J, H01M]
2014/0162,114 BATTERY MODULEAbandonedMay 29, 12Jun 12, 14[H01M]
2014/0154,556 BATTERY MODULEAbandonedMay 29, 12Jun 05, 14[H01M]
2014/0141,309 BATTERY MODULEAbandonedJul 04, 12May 22, 14[H01M]
2014/0141,321 BATTERY MODULEAbandonedMay 29, 12May 22, 14[H01M]
2014/0045,027 BATTERY PACKAbandonedSep 07, 11Feb 13, 14[H01M]
2014/0028,262 SECONDARY BATTERY PACKAbandonedAug 09, 13Jan 30, 14[H02J, H01M]
2014/0017,541 BATTERY PACK AND ELECTRIC BICYCLEAbandonedSep 07, 11Jan 16, 14[H01M]
2014/0017,542 BATTERY PACK AND ELECTRIC BICYCLEAbandonedSep 07, 11Jan 16, 14[H01M]
2014/0017,551 BATTERY PACKAbandonedSep 07, 11Jan 16, 14[H01M]
2014/0011,071 BATTERY PACKAbandonedSep 07, 11Jan 09, 14[H01M]

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