Tokuyama Soda Kabushiki Kaisha

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 266
 
  
 
A01N PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF 194
 
  
 
A61C DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE 156
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 1254
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 1137
 
  
 
C07D HETEROCYCLIC COMPOUNDS 1161
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1115
 
  
 
C25B ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR 134
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5513987 Denture, method of repairing denture and dental soft relining material used thereforMar 08, 94May 07, 96[A61C]
5462698 Photochromic compositionMar 31, 94Oct 31, 95[G02B]
5349065 Photochromic compoundNov 17, 92Sep 20, 94[C07D]
5242872 Process for producing aluminum nitride sintered bodyJun 28, 91Sep 07, 93[C04B]
5234894 Carbonyl acetonitrile derivative and herbicide containing it as an active componentMar 27, 92Aug 10, 93[A01N, C07C]
5221455 Bipolar membrane and method for its productionMay 31, 91Jun 22, 93[C25B]
5206272 Impression material compositionsJun 18, 91Apr 27, 93[A61K, C08L]
5182239 Aluminum nitride granules and process for the preparation thereofJun 13, 91Jan 26, 93[C04B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5336477 Process for producing a composite alkali metal oxideExpiredMay 26, 93Aug 09, 94[C01B]
5262142 Composite oxide of formula R.sub.2 O.Al.sub.2 O.sub.3.TiO.sub.2.SiO.sub.2.H.sub.2 O, where R is an alkali metalExpiredJul 31, 92Nov 16, 93[C01B]
5260476 Diacrylate compoundsExpiredAug 19, 92Nov 09, 93[C07C]
5246989 Photochromic compound, composition and use thereofExpiredMar 28, 91Sep 21, 93[C07D, C08K]
5240692 Basic magnesium carbonate and process for preparation thereofExpiredAug 17, 92Aug 31, 93[C01F]
5238735 Microporous shaped article and process for preparation thereofExpiredFeb 05, 90Aug 24, 93[C08J, B32B]
5216953 Printing cylinderExpiredJun 09, 92Jun 08, 93[B41F]
5214116 Resin derived from sulfur-containing unsaturated compound and having a high refractive indexExpiredDec 11, 91May 25, 93[C08F]
5171763 Curable compositionExpiredDec 10, 91Dec 15, 92[A61K, C08F, C08K]
5166107 Process for preparation of anorthite sintered bodyExpiredJul 06, 88Nov 24, 92[C04B]
5156498 Method for controlling moisture content of silica powderExpiredApr 02, 91Oct 20, 92[B65G]
5138001 Vinylphenyl compound, process for the production thereof, polymerizable composition containing same, and crosslinked polymer formed therefromExpiredAug 27, 90Aug 11, 92[C08F]
5130058 Photochromic compound, process for production thereof, use thereof and composition containing said photochromic compoundExpiredJun 29, 89Jul 14, 92[C07D, G02B, G03C]
5125959 Method of thinning lateral flowers of applesExpiredFeb 07, 91Jun 30, 92[A01N]
5124021 Solid electrolyte gas sensor and method of measuring concentration of gas to be detected in gas mixtureExpiredDec 27, 90Jun 23, 92[G01N]
5106998 Photochromic compound, composition and use thereofExpiredMar 09, 90Apr 21, 92[C07D]
5092888 Hardening materialExpiredMay 17, 90Mar 03, 92[A61F]
5082770 Method for quantitative determination of polyaminesExpiredApr 04, 88Jan 21, 92[C12Q, C12N]
5063183 Sinterable aluminum nitride composition, sintered body from this composition and process for producing the sintered bodyExpiredAug 14, 90Nov 05, 91[C04B]
5051453 Cement compositionExpiredJan 31, 89Sep 24, 91[C08L]

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