TANAKA SEIMITSU KOGYO CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01L CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES 352
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 1101
 
  
 
F01M LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL-COMBUSTION ENGINES; CRANKCASE VENTILATING 132
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 190

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8757342 Sliding friction materialMar 11, 10Jun 24, 14[F16D]
8505510 Sliding member and surface treatment method for the sameJan 15, 09Aug 13, 13[F01L]
7774926 Bearing assembling apparatusJan 05, 06Aug 17, 10[B23Q, B23P]
7473727 Friction material for transmissionJun 03, 04Jan 06, 09[H01B, C08K, B32B]
7228836 Spring retainer and method for manufacturing the sameSep 27, 05Jun 12, 07[F01L]
6470841 Valve operating system for internal combustion enginesSep 27, 01Oct 29, 02[F01M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0077,120 Magnetically Enhanced ResinAbandonedFeb 17, 12Mar 20, 14[H01F]
2005/0022,906 Bainite type non-refined steel for nitriding, method for production thereof and nitrided productAbandonedJun 29, 04Feb 03, 05[C23C, C22C]
6790295 Method of improving sliding surfaces in anti-seizure propertyExpiredJun 25, 02Sep 14, 04[C23C, C21D]
6725531 Needle bearing assembling apparatusExpiredNov 29, 01Apr 27, 04[B21D]
6708540 Machine for simultaneously caulking both ends of an objectExpiredFeb 12, 02Mar 23, 04[B21D]
6186102 Valve operating system for internal combustion engineExpiredDec 22, 99Feb 13, 01[F01L]

Top Inventors for This Owner

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