Nippon Shokubai Kagaku Kogyo Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 6103
 
  
 
B01D SEPARATION 3131
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 3135
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 3122
 
  
 
A62D CHEMICAL MEANS FOR EXTINGUISHING FIRES; PROCESSES FOR MAKING HARMFUL CHEMICAL SUBSTANCES HARMLESS, OR LESS HARMFUL, BY EFFECTING A CHEMICAL CHANGE; COMPOSITION OF MATERIALS FOR COVERINGS OR CLOTHING FOR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; COMPOSITION OF MATERIALS FOR TRANSPARENT PARTS OF GAS-MASKS, RESPIRATORS, BREATHING BAGS OR HELMETS; COMPOSITION OF CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS115
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 154
 
  
 
C09C TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES 129
 
  
 
F23G CREMATION FURNACES; CONSUMING WASTE BY COMBUSTION111

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6335406 Method for production of absorbent resin excelling in durabilityMar 01, 93Jan 01, 02[C08F]
5628975 Method for purifying exhaust gas from a diesel engineJan 24, 94May 13, 97[B01D]
5550096 Catalyst for purifying nitrogen oxides from exhaust and waste gasesFeb 09, 95Aug 27, 96[B01J]
5338353 Method for production of powder of fine inorganic particlesOct 20, 92Aug 16, 94[C09C]
5338810 Method for production of acrylate and acrylate-containing polymerMar 08, 93Aug 16, 94[C08F]
5304324 Monodispersed glycol suspension of fine inorganic oxide particles having excellent dispersion stabilityAug 10, 92Apr 19, 94[B01J]
5296650 Method for waterproofing with a cross-linked macromolecular waterproofing agentDec 02, 92Mar 22, 94[H02G]
5286699 Exhaust gas purifying catalyst suppressing the generation of hydrogen sulfide and method of making the catalystDec 20, 91Feb 15, 94[B01J]
5264495 Method for production of salt-resistant absorbent resinApr 26, 91Nov 23, 93[C08F]
5254797 Method of treating exhaust gasNov 24, 92Oct 19, 93[F23G, C01B, A62D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6087002 Water absorbent resinExpiredOct 29, 97Jul 11, 00[B32B]
5854318 Cement additive, method for producing the same, and cement compositionExpiredDec 05, 96Dec 29, 98[C04B, C08F, C08K]
5641847 Oil-absorbent polymer and use thereforExpiredDec 28, 95Jun 24, 97[C08F, C08K]
5498670 Coating compositions containing crosslinked spherical fine particlesExpiredOct 17, 94Mar 12, 96[C08L]
5484841 Method for production of aqueous dispersion of long-chain alkyl graft polymer and aqueous release agentExpiredOct 13, 94Jan 16, 96[C08J, C08L, C08K]
5407610 Method for molding fiber-reinforced resinExpiredJul 22, 93Apr 18, 95[B29C]
5403821 Drilling fluid additivesExpiredOct 25, 93Apr 04, 95[C09K]
5382735 Method of preparing alkylnaphthalene compoundsExpiredSep 21, 93Jan 17, 95[C07C]
5374600 Oil-absorbent polymer and use thereforExpiredSep 27, 93Dec 20, 94[C08F, B01J]
5329026 Process for preparation of 2-substituted 1,4-naphthoquinoneExpiredNov 28, 90Jul 12, 94[C07C]
5316714 Method of improving slipperiness of polyester film using a monodispersed glycol suspension of inorganic oxide particlesExpiredMar 13, 89May 31, 94[B29C]
5284909 Amphoteric polyelectrolyte, method for production thereof, and organic sludge dehydraterExpiredOct 13, 92Feb 08, 94[C08F]
5275759 Zirconia sol, method for production thereof, porous ceramic-producing slurry, and porous ceramic product obtained by use thereofExpiredNov 13, 92Jan 04, 94[B01J]
5262570 Method of producing ethylenediaminesExpiredJan 11, 93Nov 16, 93[C07C]
5252184 Additive for production of paperExpiredOct 21, 91Oct 12, 93[D21H]
5236622 Process for producing a monodispersed glycol suspension of fine inorganic oxide particles having excellent dispersion stabilityExpiredJul 17, 91Aug 17, 93[B01J]
5234870 Zirconia sol and method for production thereofExpiredJul 20, 90Aug 10, 93[C04B]
5235107 Method of producing ethylenediaminesExpiredApr 10, 91Aug 10, 93[C07C]
5229487 Method for metered supply of material, apparatus therefor, and method for production of hydrophilic polymer by use thereofExpiredJun 22, 90Jul 20, 93[C08F]
5229488 Method for manufacture of an absorbent resinExpiredSep 04, 90Jul 20, 93[C08F]

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