KANTO DENKA KOGYO CO., 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 7147
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 553
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF475
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 4134
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 477
 
  
 
B01D SEPARATION 3131
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 266
 
  
 
H01B CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING, OR DIELECTRIC PROPERTIES 272
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 2360
 
  
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS159

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0162,909 NONAQUEOUS ELECTROLYTIC SOLUTION INCLUDING ESTER HAVING 3,3,3-TRIFLUOROPROPIONATE GROUP AND NONAQUEOUS ELECTROLYTE BATTERY USING SAMEMay 12, 15Jun 08, 17[H01M]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9893381 Nonaqueous electrolyte containing monofluorophosphoric ester salt and nonaqueous secondary battery using sameAug 04, 15Feb 13, 18[H01M]
9478356 Coated barium titanate particulate and production method for sameNov 07, 13Oct 25, 16[C04B, C01G, H01G]
9235153 Electrostatic image developerMay 18, 12Jan 12, 16[G03G]
8957258 BIS(1,1-Dichloro-3,3,3-trifluoropropyl) ether and process for preparing the sameJan 21, 13Feb 17, 15[C07C]
8945781 Non-aqueous electrolyte for secondary battery and non-aqueous electrolyte secondary batteryFeb 05, 08Feb 03, 15[H01M]
8871974 Ionic liquid containing phosphonium cation having P—N bond and method for producing sameNov 30, 06Oct 28, 14[C07F, H01M, H01B, H01G]
8865349 Method of producing positive electrode active material and nonaqueous electrolyte battery using the sameSep 20, 06Oct 21, 14[C01B, H01M]
8795884 Nonaqueous secondary battery and electronic deviceApr 30, 09Aug 05, 14[H01M]
8409778 Resin coated carrier, two-component developer, developing device and image forming apparatusJan 21, 10Apr 02, 13[G03G]
8277560 CVD apparatus and method of cleaning the CVD apparatusMar 19, 03Oct 02, 12[C23C, H01L]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0206,480 PROCESSES AND EQUIPMENTS FOR PREPARING F2-CONTAINING GASES, AS WELL AS PROCESSES AND EQUIPMENTS FOR MODIFYING THE SURFACES OF ARTICLESAbandonedApr 28, 10Aug 19, 10[H01L, B01J, C23F]
2010/0186,774 CLEANING METHOD AND SUBSTRATE PROCESSING APPARATUSAbandonedSep 09, 08Jul 29, 10[H01L, B08B]
2009/0023,954 Ionic liquid containing phosphonium ion and method for producing the sameAbandonedApr 28, 06Jan 22, 09[C07F]
2005/0252,451 Cvd apparatus having means for cleaning with fluorine gas and method of cleaning cvd apparatus with fluorine gasAbandonedApr 01, 04Nov 17, 05[C23C]
2005/0147,820 Iron oxide powder and a process of producing the sameAbandonedSep 09, 04Jul 07, 05[C09C, C01G, B32B]
2005/0120,918 Iron oxide powder for undercoat layer of coat-type magnetic recording medium having multilayer structure and a process of producing the sameAbandonedSep 07, 04Jun 09, 05[C09C, H01F, C01G]
2004/0255,854 Cvd apparatus and method of cleaning the cvd apparatusAbandonedApr 27, 04Dec 23, 04[C23C]
2003/0143,846 Gas compositions for cleaning the interiors of reactors as well as for etching films of silicon- containing compoundsAbandonedDec 27, 02Jul 31, 03[H01L]
4751164 Method of making carrier for use in electrophotographic developersExpiredMay 13, 87Jun 14, 88[G03G]
4732835 Carrier for use in electrophotographic developersExpiredJun 09, 86Mar 22, 88[G03G]
4663262 Carrier for use in electrophotographic developersExpiredDec 26, 85May 05, 87[C04B, G03G]
4621016 Magnetic recording mediaExpiredSep 06, 84Nov 04, 86[G11B]
4556604 Magnetic recording mediaExpiredSep 06, 84Dec 03, 85[G11B]
4519839 Sintered high vanadium high speed steel and method of making sameExpiredOct 03, 84May 28, 85[B22F, C22C]
4503136 Two-component resin system of acrylic and diene polymers for coating electrophotographic carrier particlesExpiredJan 24, 83Mar 05, 85[G03G]
4497654 Ferromagnetic metallic powders useful for magnetic recording and processes for producing said metallic powdersExpiredNov 09, 83Feb 05, 85[B22F]
4486502 Resin-coated carrier for use in two-component electrophotographic developersExpiredJan 04, 83Dec 04, 84[C08F, G03G]
4447264 Production of magnetic powderExpiredMar 21, 83May 08, 84[B22F]
4404024 Production of magnetic powderExpiredMar 24, 81Sep 13, 83[C22C]
4384892 Production of magnetic powderExpiredFeb 11, 81May 24, 83[B22F]

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