CHUGAI RO CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 540
 
  
 
B05C APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 441
 
  
 
F27B FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS420
 
  
 
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 398
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 3359
 
  
 
B05B SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES 262
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 285
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 223
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 2126
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9824867 Plasma generation apparatus, deposition apparatus, and plasma generation methodFeb 27, 13Nov 21, 17[H01J, C23C, H05H]
9696090 Thermal processing furnace for workpiecesJun 04, 13Jul 04, 17[F27B, F27D, C21D]
9625212 Walking-beam type heating furnaceJan 11, 13Apr 18, 17[F27B, C21D]
8986458 Plasma processing apparatusJun 20, 13Mar 24, 15[C23C, H01J, H01L, H05H, C23F]
8919277 Coating applicator, coating application method and electronic deviceOct 07, 11Dec 30, 14[B05C, H01L, B05D, B05B]
8887657 Film forming system and method using application nozzleJun 07, 10Nov 18, 14[B05C, H01L, B05D, B05B, B41J]
8714103 Double side coating deviceJan 14, 11May 06, 14[B05C]
8617461 Continuous gas carburizing furnaceMar 28, 11Dec 31, 13[B05C]
7871266 Oven apparatus and seasoning method used therewithFeb 14, 05Jan 18, 11[F27B]
7029625 Continuous vacuum carburizing furnaceMar 22, 04Apr 18, 06[C21D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0158,047 PLASMA GENERATION APPARATUS, DEPOSITION APPARATUS, AND DEPOSITION METHODAbandonedFeb 27, 13Jun 12, 14[H01J]
8100991 Biomass gasification apparatusExpiredNov 16, 06Jan 24, 12[C01B, H01M, C10J, B01J]
7625260 Method of sealing glass panel assembly and sealing process furnaceExpiredFeb 14, 05Dec 01, 09[H01J]
2009/0233,515 Plasma Display Panel Manufacturing SystemAbandonedOct 07, 05Sep 17, 09[H01J, B25J]
2007/0175,095 Biomass gasification system and operating method thereofAbandonedFeb 14, 05Aug 02, 07[C10L]
2007/0137,105 Biomass gasification system and opeating method thereofAbandonedFeb 14, 05Jun 21, 07[C10L]
2007/0107,817 Method for controlling bright annealing furnaceAbandonedOct 12, 04May 17, 07[C21D]
6298877 Distributing valve device for heat accumulation type combustion systemExpiredFeb 12, 99Oct 09, 01[F23G]
6300608 Induction heating coil and induction heating device using the induction heating coilExpiredOct 12, 99Oct 09, 01[H05B]
5607514 Cleaning apparatusExpiredApr 27, 95Mar 04, 97[B08B]
5360202 Blackening Treating furnace for treating stainless steel strip surfaceExpiredMar 23, 93Nov 01, 94[C21D]
5358575 Method for blackening Ni-Fe shadow mask and mesh belt type blackening lehr for carrying out the methodExpiredMar 20, 92Oct 25, 94[C23C, H01J]
5306354 Method of blackening treating a stainless steel strip surfaceExpiredJun 23, 92Apr 26, 94[C21D]
5252135 Sealing apparatus for continuous vacuum treating equipmentExpiredJul 01, 92Oct 12, 93[C23C]
5238229 Burner for generating soot and furnace to deposit soot by using the sameExpiredMar 27, 92Aug 24, 93[C21D]
5217761 Sheet plasma CVD apparatusExpiredDec 23, 91Jun 08, 93[C23C]
5201682 CRT exhaust ovenExpiredNov 13, 91Apr 13, 93[H01J]
5182002 Line for continuously annealing and pickling stainless steel stripExpiredMar 19, 92Jan 26, 93[C25F]
5118366 Method of floatingly supporting a metallic stripExpiredNov 09, 90Jun 02, 92[C21D]
5079091 Green compact of incineration ashes of sewerage sludge and its burned productExpiredAug 03, 90Jan 07, 92[C10L]

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