Toho Gas Co., Ltd.

Patent Owner

Watch Compare Add to Portfolio

Stats

Details

Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 4150

Top Patents (by citation)

Upgrade to the Professional Level to View Top Patents for this Owner. Learn More

Recent Publications

  • No Recent Publications to Display

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7608357 Fuel electrode material, a fuel electrode, and a solid oxide fuel cellNov 18, 05Oct 27, 09[H01M]
7108938 Single cell for a solid oxide fuel cellJul 14, 03Sep 19, 06[H01M]
6835485 Solid oxide fuel cell having a supported electrolyte filmOct 23, 01Dec 28, 04[H01M]
6787261 Solid oxide fuel cellOct 22, 01Sep 07, 04[H01M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7422822 Single cell for a solid oxide fuel cellExpiredFeb 28, 07Sep 09, 08[H01M]
7235325 Single cell for a solid oxide fuel cellExpiredDec 10, 04Jun 26, 07[H01M]
6532421 Method for estimating a life of apparatus under narrow-band random stress variationExpiredDec 04, 00Mar 11, 03[G01B]
6149346 Method for replacement of existing pipes and device for carrying out the methodExpiredApr 14, 98Nov 21, 00[F16L]
6123452 Method and apparatus for carrying out a thermal shock test on ceramicsExpiredJan 28, 99Sep 26, 00[G01N]
5846059 Scotch yoke mechanism for multistage compressor having a spring-biased liner plateExpiredAug 23, 96Dec 08, 98[F04B]
5848372 Apparatus for detecting trouble states in engineExpiredNov 09, 95Dec 08, 98[G01L, G06G]
5623203 Remote field flaw sensor including an energizing coil, first and second receiving coil groups oriented perpendicular and a third receiving coil oriented parallel to pipeExpiredJul 26, 95Apr 22, 97[G01N]
5221586 Power generation system using fuel cellsExpiredSep 05, 91Jun 22, 93[H01M]
5101545 Method of reforming existing gas pipe by repairing joint portions thereofExpiredJan 08, 91Apr 07, 92[B23P]
5038747 Desmoking and deodorizing means for gas grillExpiredSep 27, 89Aug 13, 91[A21B]
4944283 Gas burnerExpiredAug 29, 89Jul 31, 90[A47J, F24C]
4841744 Double effect air cooled absorption refrigerating machineExpiredJan 19, 88Jun 27, 89[F25B]
4650621 Method of preparing heat exchange elementExpiredNov 14, 85Mar 17, 87[B31F, C08K]
4595403 Heat exchange elementExpiredAug 29, 84Jun 17, 86[B01D]

Top Inventors for This Owner

Upgrade to the Professional Level to View Top Inventors for this Owner. Learn More

We are sorry but your current selection exceeds the maximum number of comparisons () for this membership level. Upgrade to our Level for up to -1 comparisons!

We are sorry but your current selection exceeds the maximum number of portfolios (0) for this membership level. Upgrade to our Level for up to -1 portfolios!.