NITTO KAGAKU KOGYO KABUSHIKI KAISHA

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C12N MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF 1166
 
  
 
C12P FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE 198

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5334519 Process for biological production of amides with R. rhodochrous J-1Oct 15, 91Aug 02, 94[C12P, C12N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5773659 Process for producing dimethylamineExpiredJul 24, 96Jun 30, 98[C07C]
5688854 Production of methylaminesExpiredSep 12, 96Nov 18, 97[C07L]
5318908 Method for cultivation of nitrile hydratase-producing pseudomonasExpiredJul 26, 91Jun 07, 94[C12N]
5135858 Process for biological production of organic acidsExpiredFeb 22, 91Aug 04, 92[C12R, C12P]
5089411 Method of culturing a strain of Rhodococcus rhodochrous having nitrile hydratase activityExpiredOct 05, 89Feb 18, 92[C12P, C12N]
5068442 Method for maintaining the activity of zeolite catalystsExpiredMay 17, 89Nov 26, 91[C07C]
4931391 Method for preservation of nitrile hydration activityExpiredMay 01, 87Jun 05, 90[C12N]
4908313 Process for producing amides by use of microoganismsExpiredDec 10, 87Mar 13, 90[C12P, C12N]
4900672 Method for preservation of nitrile hydration activityExpiredMay 01, 87Feb 13, 90[C12N]
4880739 Method of cultivation of pseudomonas bacteriaExpiredOct 02, 87Nov 14, 89[C12P, C12N, C12K]
4661457 Method for cultivation of pseudomonas bacteriaExpiredJan 09, 84Apr 28, 87[C12R, C12N]
4661456 Method for cultivation of pseudomonas bacteriaExpiredJan 09, 84Apr 28, 87[C12R, C12N]
4637982 Process for biological preparation of amidesExpiredJul 05, 83Jan 20, 87[C12R, C12P, C12N]
4607958 Apparatus for stirring hydrogel particles of water-soluble polymerExpiredDec 05, 84Aug 26, 86[B01F]
4582936 Process for producing dimethylamine in preference to mono- and trimethylamines by gas phase catalytic reaction of ammonia with methanolExpiredJun 06, 84Apr 15, 86[C07C]
4578516 Process for producing dimethylamine in preference to mono- or trimethylamine by vapor-phase catalytic reaction of methanol and ammoniaExpiredMay 07, 84Mar 25, 86[C07C]
4555487 Method for cultivation of Pseudomonas bacteriaExpiredNov 15, 83Nov 26, 85[C12R, C12P, C12N]
4518261 Equipment for dissolving polyacrylamide powder for obtaining an aqueous solution thereof for enhanced oil recoveryExpiredMar 25, 83May 21, 85[B01F]
4485261 Process for producing methylaminesExpiredApr 09, 82Nov 27, 84[C07C]
4455411 Process for preparing acrylamide polymersExpiredJun 14, 83Jun 19, 84[C08F]

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