Sankei Giken Kogyo Kabushiki Kaisha

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 370
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL367
 
  
 
B01D SEPARATION 2132
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 254
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 254
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 186
 
  
 
B21B ROLLING OF METAL 131
 
  
 
B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES 156
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100
 
  
 
1208 MOTOR CARS, BUSES AND LORRIES133

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8844579 Flexible vibration absorbing tubeSep 29, 10Sep 30, 14[F16L, F01N]
D633836 Sash material for automobilesSep 13, 02Mar 08, 11[1208]
6641204 Molding attachment structure for automobile doorAug 30, 02Nov 04, 03[B60J]
6390142 Engine exhaust systemSep 21, 01May 21, 02[F16L]
6338246 Exhaust passage control valveJan 19, 01Jan 15, 02[F01N]
5937686 Bending apparatus for hollow double-structured pipeAug 28, 97Aug 17, 99[B21D, B21B]
5813704 Flexible jointMar 13, 97Sep 29, 98[F16L]
5749255 Bending device for hollow double-structured pipeDec 06, 96May 12, 98[B21D]
5698268 Resin composition for electroless metal deposition and method for electroless metal depositionFeb 06, 97Dec 16, 97[C23C, B05D]
5479706 Method for manufacturing silencer and apparatus for manufacturing sameNov 23, 94Jan 02, 96[B23P]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6857502 Engine muffler and method of manufacturing the sameExpiredSep 21, 01Feb 22, 05[F01N]
2004/0244,298 Sash door for automobile and method of manufacturing the sameAbandonedJul 29, 04Dec 09, 04[B60J]
6419280 Exhaust pipe joint assemblyExpiredJan 05, 01Jul 16, 02[F16L]
5230928 Electroless plating methodExpiredAug 21, 91Jul 27, 93[C23C]
4982486 Method for production of molding for vehiclesExpiredOct 03, 89Jan 08, 91[B23P]
4925634 Catalytic converter for use with internal combustion engineExpiredJul 25, 88May 15, 90[F01N, B01J]
4851298 Multi-layer tube of a muffler for an internal combustion engineExpiredJun 13, 88Jul 25, 89[B32B]
4793544 Method of producing a multi-layer tube of a mufflerExpiredOct 02, 86Dec 27, 88[F01N]
4779703 Silencing device for internal combustion engineExpiredApr 06, 87Oct 25, 88[F01N]
4746568 Heat-resistant coating composition and heat-resistant coatExpiredFeb 12, 87May 24, 88[B32B]
4719679 Method of manufacturing tubes for use in a muffler for internal combustion enginesExpiredJun 12, 86Jan 19, 88[F01N, B21D]
4656830 Exhaust manifold for internal combustion enginesExpiredMay 14, 86Apr 14, 87[F01N]
4657963 Heat-resistant coating composition and heat-resistant coatExpiredAug 27, 85Apr 14, 87[C38K]
4637491 Muffler for internal combustion engine and method of manufacturing tubes for use thereinExpiredJun 19, 85Jan 20, 87[F01N]
4589517 MufflerExpiredNov 02, 84May 20, 86[F01N]
4580656 Absorbent retainer for absorbent type mufflerExpiredNov 02, 84Apr 08, 86[F01N]
4574913 Muffler with spark arresting functionExpiredOct 24, 84Mar 11, 86[F01N]
4404042 Method for color-painting on chromium-plated surfaceExpiredJun 10, 81Sep 13, 83[C23C]
4354573 Silencer for motorcycleExpiredFeb 17, 81Oct 19, 82[F01N]

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