Nakagawa Sangyo Co., Ltd.

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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 568
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 353
 
  
 
D04H MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL 328
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124
 
  
 
B42D BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH; MOVABLE-STRIP WRITING OR READING APPARATUS 132
 
  
 
C03B MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL; SUPPLEMENTARY PROCESSES IN THE MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL 146
 
  
 
C03C CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS159
 
  
 
D06M TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS 125

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0194,823 FORGERY-PREVENTING THREAD/YARNOct 29, 15Jul 07, 16[B42D, D06M]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8533952 Pipe flange forming methodDec 22, 10Sep 17, 13[B23P, B21D]
8501643 Method for manufacturing basalt fiberSep 16, 11Aug 06, 13[D04H]
8216406 Method for manufacturing thermally expandable base material for vehicle interior and method for manufacturing base material for vehicle interior using sameJul 11, 11Jul 10, 12[B29C, D04H]
8037719 Method for manufacturing basalt fiberJun 19, 06Oct 18, 11[C03C, C03B]
7896129 Sub-mufflerNov 24, 06Mar 01, 11[F01N]
7767603 Basalt fiber materialJun 05, 06Aug 03, 10[C03C]
7461505 Exhaust pipe of vehicleApr 17, 06Dec 09, 08[F01N]
7240767 Fixing structure of tail pipe of exhaust pipeApr 15, 04Jul 10, 07[F01N]
6467571 Sound absorbing material, muffler using the sound absorbing material, and method for forming sound absorbing layer thereofDec 11, 00Oct 22, 02[F01N, B21D, D04H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0052,443 INTERIOR SUBSTRATE MATERIAL AND METHOD OF MANUFACTURING THE SAMEAbandonedAug 08, 12Feb 28, 13[B29C, B32B]
2012/0115,387 MAT MATERIAL AND METHOD FOR MANUFACTURING THE SAMEAbandonedNov 10, 10May 10, 12[D04H]
2011/0088,805 HEAT INSULATOR SUITABLE FOR A VEHICLE EXHAUST PIPEAbandonedOct 11, 10Apr 21, 11[F16L, B21D]
2010/0225,017 PROCESS FOR PRODUCTION OF THERMALLY EXPANDABLE BASE MATERIAL FOR VEHICLE INTERIOR AND PROCESS FOR PRODUCTION OF BASE MATERIAL FOR VEHICLE INTERIOR USING THE THERMALLY EXPANDABLE BASE MATERIALAbandonedMar 16, 09Sep 09, 10[B29C]
2006/0162,326 Construction of coupling exhaust pipes of vehicleAbandonedJan 19, 06Jul 27, 06[F01N]
2005/0020,164 Fibrous formed products and methods for manufacturing such fibrous formed productsAbandonedMay 19, 04Jan 27, 05[D03D, D01G]
4993513 MufflerExpiredJan 27, 89Feb 19, 91[F01N]
4880078 Exhaust mufflerExpiredJun 29, 88Nov 14, 89[F01N]
4381330 Surface treated glass-wool mat and the method for making the sameExpiredJul 31, 81Apr 26, 83[B32B]

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