TOKAI CARBON CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C09C TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES 1218
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 993
 
  
 
C09D COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR 785
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF673
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 6356
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 5115
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 5111
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 5149
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3154
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 398

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0037,760 METHOD FOR PRODUCING WATER DISPERSION OF OXIDIZED CARBON BLACK PARTICLESJan 20, 16Feb 08, 18[C09D, C09C]
2018/0022,926 METHOD FOR PRODUCING OXIDIZED CARBON BLACK AQUEOUS DISPERSION, AND METHOD FOR PRODUCING OXIDIZED CARBON BLACK AQUEOUS DISPERSION FOR INKJET INKJan 20, 16Jan 25, 18[C09D, C09C]
2017/0051,124 CARBON BLACK AND RUBBER COMPOSITIONNov 26, 14Feb 23, 17[C09C, B60C, C08K]
2016/0177,102 CARBON BLACK, METHOD FOR PRODUCING CARBON BLACK, AND RUBBER COMPOSITIONJul 24, 13Jun 23, 16[C09C, C08K]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9914835 Carbon black, method for producing carbon black, and rubber compositionJul 24, 13Mar 13, 18[C09C, B60C, B01J, C08K]
9490157 Semiconductor processingMar 31, 09Nov 08, 16[B24B, C23C, H01L, C30B]
9145482 Carbon black, method for producing carbon black, and rubber compositionFeb 01, 11Sep 29, 15[B82Y, C09C, C08L, C08K]
9102840 Polyurethane resin addition pigment, process for producing polyurethane resin addition pigment, pigment dispersion composition, and jet printing ink compositionJul 01, 11Aug 11, 15[C08G, C09D, C09C, C08K]
9045583 Polyurethane resin adhesion pigment, pigment dispersion composition and inkjet ink compositionMay 30, 11Jun 02, 15[C08J, C08G, C09D, C09C, C08L, C08K]
9018317 Process for producing pigment dispersion compositionFeb 07, 12Apr 28, 15[C08G, B82Y, C09D, C09C, C08L, C08K]
9000449 Semiconductor substrate, method for producing semiconductor substrate, substrate for semiconductor growth, method for producing substrate for semiconductor growth, semiconductor element, light-emitting element, display panel, electronic element, solar cell element, and electronic deviceSep 07, 10Apr 07, 15[H01L]
8728432 Process for producing dispersion of surface-treated carbon black powder, and process for producing surface-treated carbon black powderJul 09, 10May 20, 14[C09C]
8709147 Method for producing aqueous dispersion of surface-treated carbon black particles and aqueous dispersion of surface-treated carbon black particlesMar 09, 12Apr 29, 14[C09D, C09C]
8524129 Method for producing a fuel cell separatorMay 27, 10Sep 03, 13[B29C, H01M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0300,333 Hydraulic Rotary MachineAbandonedOct 11, 13Oct 22, 15[F04B, C22C]
2011/0253,008 AQUEOUS DISPERSION OF SURFACE-TREATED CARBON BLACK AND METHOD OF PRODUCING THE SAMEAbandonedJun 28, 11Oct 20, 11[C09D]
2010/0269,732 AQUEOUS DISPERSION OF SURFACE-TREATED CARBON BLACK AND METHOD OF PRODUCING THE SAMEAbandonedDec 25, 08Oct 28, 10[C09D]
7754177 Carbon nanoballoon structure and method for preparation thereof, and electron emitterExpiredMar 25, 05Jul 13, 10[B01J]
2010/0090,173 Process of Producing Negative Electrode Material for Lithium-Ion Secondary BatteriesAbandonedDec 08, 06Apr 15, 10[H01B]
2010/0068,626 NEGATIVE ELECTRODE MATERIAL FOR LITHIUM RECHARGEABLE BATTERYAbandonedMay 29, 07Mar 18, 10[H01M]
2010/0021,793 Fuel Cell Separator Material and Process of Producing the SameAbandonedDec 08, 06Jan 28, 10[B29C, H01M]
2009/0286,131 Separator Material for Polymer Electrolyte Fuel Cells and Process of Producing the SameAbandonedDec 08, 06Nov 19, 09[B29C, H01M]
2009/0267,250 Fuel Cell Separator Material and Process of Producing the SameAbandonedOct 05, 06Oct 29, 09[H01M, B29B]
2009/0270,565 Fuel Cell Separator Material and Process of Producing the SameAbandonedJul 27, 06Oct 29, 09[B29C, C08L]
2009/0260,543 Carbon Black Aqueous Pigment and Method of Producing Aqueous Dispersion ThereofAbandonedOct 05, 06Oct 22, 09[C09C]
2009/0263,701 Method of producing separator material for polymer electrolyte fuel cellAbandonedNov 08, 07Oct 22, 09[B05D, H01M]
2009/0234,063 Aqueous Carbon Black Pigment and Aqueous Dispersion ThereofAbandonedMay 29, 07Sep 17, 09[C08L]
2009/0214,954 NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS SECONDARY CELLS, NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY CELLS, AND NONAQUEOUS SECONDARY CELLAbandonedAug 30, 05Aug 27, 09[H01M]
2009/0137,731 Surface-Modified Carbon Black and Dispersion ThereofAbandonedDec 08, 06May 28, 09[C08L]
2009/0064,900 Method of producing carbon black aqueous dispersionAbandonedMay 11, 06Mar 12, 09[C09D]
2009/0004,569 Negative Electrode Material For Lithium-Ion Secondary Batteries and Process of Producing the SameAbandonedJan 26, 07Jan 01, 09[B05D, H01M]
2008/0247,940 Carbon Black Coloring Agent for Semiconductor Sealing Material and Method of Manufacturing the SameAbandonedAug 10, 05Oct 09, 08[C01B]
2008/0168,922 Carbon Black Aqueous Dispersion and Method of Producing the SameAbandonedNov 04, 05Jul 17, 08[C09D]
2008/0095,696 Carbon black for functional rubber componentAbandonedOct 12, 07Apr 24, 08[C09C]

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