Toho Rayon Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B62D MOTOR VEHICLES; TRAILERS 289
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF277
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 2114
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 186
 
  
 
B28B SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER 127
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
B31C MAKING WOUND ARTICLES, e.g. WOUND TUBES 18
 
  
 
B44D PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES 15
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6238506 Method of manufacturing steering wheelFeb 18, 99May 29, 01[B62D, B31C]
5899118 Steering wheel and method of manufactureJan 23, 97May 04, 99[B62D]
5840347 Apparatus for making a cylindrical product of fiber reinforcement-thermoplastic resin compositeOct 24, 97Nov 24, 98[B28B]
5685525 Carbon fiber reinforced resin coil springAug 02, 94Nov 11, 97[B29C, F16F]
5514771 Process for preparation of soluble ion-doped poly (alkyl-substituted pyrrole)Jan 17, 96May 07, 96[C08G, H01B]
5482906 Adsorption material comprising activated carbon fiber and polytetrafluoroethyleneJun 13, 94Jan 09, 96[B01J]
5443859 Carbon film and process for preparing the sameMay 25, 94Aug 22, 95[C01B, B05D]
5438105 Polyamic acid composite, polyimide composite and processes for producing the sameFeb 28, 94Aug 01, 95[C08L]
5371152 Resin composition and process for producing the compositionOct 08, 92Dec 06, 94[C08L]
5352524 Carbon film and process for preparing the sameMay 29, 92Oct 04, 94[C01B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5585062 Process for making a cylindrical product of fiber reinforcement-thermoplastic resin compositeExpiredDec 29, 94Dec 17, 96[B29C]
5286563 Acrylic fiber strand suitable for use in carbon fiber production and process for producing the sameExpiredDec 20, 91Feb 15, 94[B05D]
5284702 Low fuming phenolic resin prepreg and process for producing the sameExpiredAug 15, 91Feb 08, 94[B32B]
5231162 Polyamic acid having three-dimensional network molecular structure, polyimide obtained therefrom and process for the preparation thereofExpiredFeb 24, 92Jul 27, 93[C08G]
5167945 Method for producing graphite fiberExpiredOct 22, 90Dec 01, 92[C01B]
5126017 Process for producing electrically conductive polymer film by electrolytic polymerizationExpiredAug 30, 91Jun 30, 92[C25B]
5078840 Process for the surface treatment of carbon fiber strandsExpiredJul 20, 90Jan 07, 92[C01D]
5030282 Carbon fiber-reinforced cementitious composite and method for producing the compositeExpiredJul 10, 89Jul 09, 91[C04B]
4962162 Resin composition of thermosetting resin and thermoplastic resinExpiredSep 30, 87Oct 09, 90[C08L]
4898700 Process for producing preoxidized fibers from acrylic fibersExpiredSep 30, 88Feb 06, 90[D01F]
4897286 Method for producing carbon fiber reinforced thermoplastic resin productExpiredDec 29, 88Jan 30, 90[B05D]
4891267 Carbon fiber cord for rubber reinforcement and process for producing the sameExpiredDec 16, 86Jan 02, 90[D02G, B32B]
4883712 Carbon fiber cord for rubber reinforcementExpiredDec 24, 86Nov 28, 89[D02G, B32B]
4869856 Method for producing carbon fibers from acrylonitrile fiber strandsExpiredAug 07, 87Sep 26, 89[D01F]
4861809 Friction materialExpiredMay 27, 88Aug 29, 89[C08J, C08K]
4849279 Insect-repellent assemblyExpiredFeb 12, 88Jul 18, 89[D03D]
4820905 Carbonizing furnaceExpiredJul 09, 87Apr 11, 89[H05B]
4714648 Prepregs and method for production thereofExpiredAug 01, 85Dec 22, 87[D02G, B32B, D04H]
4536448 Preoxidized fiber and process for producing the sameExpiredSep 08, 83Aug 20, 85[C01B, D02G]

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