Kyowa Yuka Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 2136
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6770709 Resin compositionDec 27, 02Aug 03, 04[C08F]
6365783 Process for producing alcoholsMay 25, 00Apr 02, 02[C07C]
5808166 Method for producing 3,4-dihydroxy-3-cyclobutene-1,2-dioneDec 03, 97Sep 15, 98[C07C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7417162 Oily ingredient for cosmetic preparation and cosmetic preparationExpiredAug 21, 02Aug 26, 08[A61Q]
7358030 Process for producing ether compoundExpiredNov 30, 05Apr 15, 08[G03C]
7223521 Squarylium-metal chelate compounds and optical recording mediaExpiredFeb 11, 04May 29, 07[G11B]
2007/0027,270 Softening agentAbandonedOct 02, 06Feb 01, 07[C08L]
7015363 Process for producing ether compoundExpiredJul 12, 02Mar 21, 06[C07C]
2004/0254,407 1, 3-butylene glycol and process for producing the sameAbandonedMar 24, 04Dec 16, 04[C07C]
6818262 Filters for electronic display deviceExpiredJan 22, 03Nov 16, 04[C07D, G02B]
2004/0225,065 Softening agentAbandonedJun 15, 04Nov 11, 04[C08F, C08L]
6794005 Optical recording medium, optical recording method and optical recording deviceExpiredFeb 04, 03Sep 21, 04[B32B]
6759484 Method of diminishing odor emissionExpiredMar 27, 02Jul 06, 04[C08F]
6737143 Optical recording medium, optical recording method and optical recording deviceExpiredJun 11, 02May 18, 04[B32B]
6660867 Metal complex type squarylium compounds and optical recording media made by using the sameExpiredNov 27, 02Dec 09, 03[C07F, B32B]
6649693 Polyurethane and water-compatible polyurethane resinExpiredNov 14, 02Nov 18, 03[C08J, C09J, C08G, C09D, C08L]
6599605 Squarylium compounds and optical recording media using the sameExpiredNov 28, 01Jul 29, 03[B32B]
6596364 Squarylium compounds and optical recording medium containing the sameExpiredDec 05, 01Jul 22, 03[B32B]
2003/0119,959 Softening agentAbandonedNov 01, 02Jun 26, 03[C08F, C08L, C08K]
6558768 Optical recording medium and optical recording and reading method using the sameExpiredMar 02, 01May 06, 03[B32B]
2003/0065,056 Resin compositionsAbandonedMay 14, 02Apr 03, 03[C09J, C08G]
6512057 Resin compositionExpiredSep 25, 01Jan 28, 03[C08F]
6372871 Dithiocarbonate compositionExpiredJun 04, 99Apr 16, 02[C08F]

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