Kaken Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 1254
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 138
 
  
 
C07F ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM, OR TELLURIUM 169
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119
 
  
 
G21C NUCLEAR REACTORS 142
 
  
 
G21G CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES 116

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9236153 Method of recovering enriched radioactive technetium and system thereforJul 03, 09Jan 12, 16[G21G, A61K, C01G, G21C]
5681974 Mo adsorbent for .sup.99 Mo-.sup.99m Tc generators and manufacturing thereofMay 20, 96Oct 28, 97[C07F, C08G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0011,770 Reduction method of atmospheric carbon dioxide, recovery and removal method of carbonate contained in seawater, and disposal method of the recovered carbonateAbandonedJul 18, 03Jan 20, 05[B01J, C30B]
6521575 Method and unit for regeneration of solution for cleaning glass, method and unit for cleaning silicate glass, and cathode-ray tubeExpiredApr 06, 00Feb 18, 03[C11D]
5181921 Detachable balloon with two self-sealing valvesExpiredMay 24, 91Jan 26, 93[A61M]
5018276 Tooth structure of rotary saw blade and method of forming the sameExpiredApr 25, 90May 28, 91[B26B, B24D]

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