TOPURA CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 1138
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 285
 
  
 
B21H MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS 17
 
  
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 122
 
  
 
B23G THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH 18
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119
 
  
 
C10M LUBRICATING COMPOSITIONS 148
 
  
 
C22C ALLOYS 171
 
  
 
C22F CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS 136

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9752609 Threaded fastenerJul 08, 14Sep 05, 17[F16B, B21H]
9534282 Method for manufacturing aluminum based alloy-made fastening part and aluminum based alloy-made fastening partNov 10, 11Jan 03, 17[B21K, F16B, B21H, B23G, C22F]
9267528 Tapping screwJun 26, 13Feb 23, 16[F16B]
9181972 Loosening prevention threaded fastenerNov 18, 11Nov 10, 15[F16B]
8927064 Coating agent for tapping screw, method for preparing the coating agent, method for forming coating layer on the periphery of tapping screw using the coating agent, and tapping screw having coating layer formed from the coating agentOct 04, 07Jan 06, 15[B05D, C08G, C10M, F16B]
7780388 Tapping screwJul 21, 05Aug 24, 10[F16B]
6183809 Surface-treating method of screw partsFeb 25, 97Feb 06, 01[B05D]
6077013 Bolt equipped with pilotMar 09, 98Jun 20, 00[F16B]
5249882 Self-tapping screwApr 29, 92Oct 05, 93[F16B]
5205694 Self-tapping screwApr 29, 92Apr 27, 93[F16B]

View all patents..

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5820478 Powered tiltable platformExpiredJul 11, 97Oct 13, 98[A63B]
4677703 Dies for forming drilling screwsExpiredMar 07, 86Jul 07, 87[B21K, B23G]
4637767 Threaded fastenerExpiredDec 28, 84Jan 20, 87[F16B]

Top Inventors for This Owner

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