KOYO MACHINE INDUSTRIES CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 1650
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 1180
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 763
 
  
 
B62D MOTOR VEHICLES; TRAILERS 586
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 186
 
  
 
B21B ROLLING OF METAL 131
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
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

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0072,529 SURFACE GRINDING METHOD FOR WORKPIECE AND SURFACE GRINDERAug 15, 16Mar 16, 17[B24B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9707991 Telescopic shaft and steering systemDec 28, 15Jul 18, 17[B62D, F16C, F16D]
9669511 Surface grinding method for workpieceFeb 23, 15Jun 06, 17[B24B]
9630645 Telescopic shaft and steering systemDec 28, 15Apr 25, 17[B62D, F16C, F16D]
9539685 Workpiece conveyer apparatus of machine toolJan 28, 15Jan 10, 17[B23Q, B21B]
9452444 Method of manufacturing spline telescopic shaftJan 22, 14Sep 27, 16[B05D, B62D, F16C, F16D]
9404530 Bearing cup and cross shaft jointJun 17, 14Aug 02, 16[F16C, F16D]
8753215 Spline telescopic shaft and method for manufacturing the same and vehicle steering apparatusAug 03, 10Jun 17, 14[F16C]
8500564 Shaft-and-yoke coupling structure and vehicle steering systemDec 05, 11Aug 06, 13[F16D]
8419555 Spline telescopic shaft, method for manufacturing spline telescopic shaft, and vehicle steering apparatusJul 30, 10Apr 16, 13[C23C, B05D, F16C]
8403731 Inclination angle adjusting device and workpiece attaching deviceJun 12, 09Mar 26, 13[B24B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0080,258 SPLINE TELESCOPIC SHAFT, VEHICLE STEERING APPARATUS WITH THE SPLINE TELESCOPIC SHAFT, AND METHOD FOR MANUFACTURING THE SPLINE TELESCOPIC SHAFTAbandonedFeb 18, 11Apr 05, 12[B23P, B62D, F16D]
2007/0259,722 Universal Joint YokeAbandonedNov 29, 04Nov 08, 07[F16D]
6923577 Scroll thrust bearingExpiredApr 28, 04Aug 02, 05[F16C]
6621525 Double tapered roller of scroll thrust bearingExpiredJan 04, 01Sep 16, 03[F16C]
6152712 Scroll thrust bearingExpiredJul 22, 99Nov 28, 00[F01C]
6123605 Dressing device for centerless grinding machine and dressing method for centerless grinding machineExpiredJan 05, 98Sep 26, 00[B24B]
6111491 Magnetic screwExpiredAug 05, 99Aug 29, 00[H01F]
5846000 Roller bearing and assembling method for roller bearingExpiredOct 03, 97Dec 08, 98[F16C, F16H]
5700115 Speed-increasing spindle deviceExpiredJan 31, 96Dec 23, 97[B23C]
5687614 Magnetic screw deviceExpiredAug 02, 95Nov 18, 97[F16H]
5557402 Surface flaw detecting apparatus of workpieceExpiredApr 20, 95Sep 17, 96[G01N]
4590712 Vertical spindle duplex head for a grinderExpiredOct 04, 85May 27, 86[B24B]
4482162 Automatic chuck for workpiecesExpiredJul 30, 82Nov 13, 84[B23B]

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