TOKYO GAS CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 6103
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 6148
 
  
 
A61K PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES 4251
 
  
 
B01D SEPARATION 4130
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL466
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 4202
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF376
 
  
 
E21B EARTH OR ROCK DRILLING 393
 
  
 
A61B DIAGNOSIS; SURGERY; IDENTIFICATION 2238
 
  
 
F23D BURNERS 230

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9568412 Method and instrumentation for measuring and assessing AC corrosion risk of pipelineJun 04, 12Feb 14, 17[G01N]
9350030 Fuel cell moduleDec 02, 13May 24, 16[H01M]
9279313 Device and method for sequestering a substanceDec 15, 14Mar 08, 16[E21B]
9216374 Gas separation device and gas separation methodJun 14, 13Dec 22, 15[C01B, B01J, B01D]
9182061 Pipe jointMay 07, 10Nov 10, 15[F16L]
9144767 Gas separation deviceJun 14, 13Sep 29, 15[C01B, B01J, B01D]
8998532 Retention device for retained substance and retention methodMar 26, 12Apr 07, 15[G21F, C01B, B65G, B09B, B01J, B65D]
8939223 Device and method for sequestering a substanceAug 11, 10Jan 27, 15[E21B]
8728199 Hydrogen separation membrane and method for separating hydrogenSep 14, 10May 20, 14[B01D, C22C]
8684085 Storing device for stored substance and method for storing stored substanceAug 12, 09Apr 01, 14[E21B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0223,500 MCFC POWER GENERATION SYSTEM AND METHOD FOR OPERATING SAMEAbandonedNov 16, 09Sep 15, 11[H01M]
2011/0223,501 HYDROGEN-RECYCLING MCFC POWER-GENERATING SYSTEMAbandonedNov 16, 09Sep 15, 11[H01M]
2010/0291,459 Segmented-In-Series Solid Oxide Fuel Cell Stack and Fuel CellAbandonedNov 28, 08Nov 18, 10[H01M]
2010/0285,387 SEGMENTED-IN-SERIES SOLID OXIDE FUEL CELLAbandonedDec 24, 08Nov 11, 10[H01M]
2010/0254,864 CYLINDRICAL STEAM REFORMERAbandonedDec 26, 08Oct 07, 10[B01J]
7572598 Preparation comprising albumin esterified with a labeled substance for diagnosis of pancreatic exocrine functionExpiredNov 30, 06Aug 11, 09[A61K, C12Q, G01N, C07K, A61M]
7569208 Diagnostic agents for pancreatic exocrine functionExpiredDec 20, 06Aug 04, 09[A61K, A61M]
7550272 Method for diagnosis of pancreatic exocrine functionExpiredAug 10, 06Jun 23, 09[A61K, C12Q, G01N, C07K, A61M]
7404945 Method of evaluating pharmacological effects of medicineExpiredFeb 20, 03Jul 29, 08[A61K]
2008/0027,648 Detection-Object-Position-Specifying Device and Method of Specifying Position of Object to Be DetectedAbandonedJun 01, 05Jan 31, 08[G06F]
7232559 Diagnostic agents for pancreatic exocrine functionExpiredDec 03, 99Jun 19, 07[A61K]
7125683 Preparations for diagnosis extrapancreatic secretory functionExpiredAug 31, 01Oct 24, 06[C12Q]
7009219 Diamond ultraviolet light-emitting deviceExpiredJun 27, 00Mar 07, 06[H01L]
2005/0229,781 Separation method and separation apparatus of isotopes from gaseous substancesAbandonedSep 07, 04Oct 20, 05[B01D]
6905668 Diagnostic agents for pancreatic exocrine functionExpiredJun 07, 00Jun 14, 05[A61K]
6895681 Method and instrument for measuring inside diameter of conduitExpiredMar 28, 02May 24, 05[G01B]
6879385 Nondestructive reading method for isotopic labelExpiredMar 11, 03Apr 12, 05[G06K]
6872981 Diamond ultraviolet luminescent elementExpiredJan 03, 02Mar 29, 05[H01L]
6823859 Flat heating surface type gas stoveExpiredJun 25, 03Nov 30, 04[F24C]
2004/0227,016 Nozzle and method of jetting fluid into inner peripheral surface of conduct by the nozzleAbandonedMar 20, 04Nov 18, 04[B05B]

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