MITSUBISHI KASEI CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 14124
 
  
 
G03G ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY 1071
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 7118
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 6249
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 6114
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 550
 
  
 
C07D HETEROCYCLIC COMPOUNDS 5157
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4153
 
  
 
B41M PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING 445
 
  
 
G03F PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR 4100

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5827365 Compound semiconductor and its fabricationJan 23, 95Oct 27, 98[C30B]
5751026 Epitaxial wafer of gallium arsenide phosphideFeb 18, 97May 12, 98[H01L]
5665502 Electrophotographic photoreceptor and method for producing the photoreceptorJan 31, 96Sep 09, 97[G03G]
5554792 N-vinylformamide compositionsApr 13, 95Sep 10, 96[C07C]
5547722 Ethylene polymer and fuel tank comprising the sameMar 31, 95Aug 20, 96[B65D, B32B]
5376718 Flame retardant resin compositionSep 23, 93Dec 27, 94[C08G, G08L]
5355384 Semiconductor laser elementSep 29, 93Oct 11, 94[H01S]
5350523 Anion exchange methodAug 28, 92Sep 27, 94[B01J, C02F]
5348719 Process for producing carbon fibers having high strand strengthNov 21, 91Sep 20, 94[D01F]
RE34737 Dye transfer sheet for sublimation heat-sensitive transfer recordingMay 08, 91Sep 20, 94[B41M]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6139869 Human monoclonal antibody specifically binding to surface antigen of cancer cell membraneExpiredMay 25, 95Oct 31, 00[A61K, C07K]
5868834 Method of manufacturing a group II-VI compound semiconductorExpiredJun 16, 97Feb 09, 99[C30B]
5846628 Magnetic discExpiredApr 02, 96Dec 08, 98[G11B]
5644165 Semiconductor device having a p-type ohmic electrode structureExpiredFeb 27, 96Jul 01, 97[H01L]
5618448 Glass substrate having surface protrusions for use as a magnetic disc substrateExpiredMay 23, 95Apr 08, 97[C09K, C03C]
5584801 Wound coveringExpiredMar 10, 94Dec 17, 96[A61F]
5389480 Electrophotographic photoreceptorExpiredNov 19, 93Feb 14, 95[G03G]
5364584 Process for producing fiber-reinforced resin moldingsExpiredOct 16, 92Nov 15, 94[B29C]
5358678 Polytetrafluoroethylene porous film and process for preparing the sameExpiredJul 06, 92Oct 25, 94[B27J]
5354874 Substituted-acyclic terpene compoundExpiredNov 30, 93Oct 11, 94[C07D, C07C]
5350782 Dental filling compositionExpiredSep 04, 92Sep 27, 94[A61K, C08K]
5350915 Image sensor using organic photoconductorExpiredJun 17, 93Sep 27, 94[H01J]
5350790 Polycarbonate resin composition for optical useExpiredApr 01, 93Sep 27, 94[C08J, C08L, C08K]
5334916 Apparatus and method for LED emission spectrum controlExpiredMay 27, 92Aug 02, 94[H05B, G05F]
5332833 .beta.-oxo-.beta.-benzenepropanethioamide compoundsExpiredDec 23, 92Jul 26, 94[A61K, C07D, C07C]
5330824 Image protecting film and image protecting methodExpiredSep 25, 92Jul 19, 94[B32B]
5328767 Resin composition and multi-layer structural material therefromExpiredApr 15, 92Jul 12, 94[B32B]
5326624 Photographic supportExpiredJul 09, 92Jul 05, 94[G03C, B32B]
5326849 Method for producing an aromatic poly (thio) ether ketoneExpiredOct 14, 93Jul 05, 94[C08G]
5324605 Electrophotographic plate with an arylamine-containing photosensitive layerExpiredJul 27, 92Jun 28, 94[G03G]

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