O-OKA CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16H GEARING793
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 487
 
  
 
B21K MAKING FORGED OR PRESSED PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS, WHEELS 221
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 165

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9091338 Free-form surface gearDec 05, 12Jul 28, 15[B21K, B21J, F16H]
8196488 GearDec 27, 07Jun 12, 12[F16H, B21D]
7490529 Gear for transmission and method for manufacturing the sameApr 30, 04Feb 17, 09[F16D]
7484611 Speed change gear with dog clutch pawl, and method and device of manufacturing the sameMay 27, 04Feb 03, 09[B21K, B21J, F16D, F16H]
7437967 Gear having window holes, and method and apparatus for manufacturing the sameMay 21, 03Oct 21, 08[F16H]
7337647 Gear and method and device for manufacturing the gearMar 14, 05Mar 04, 08[B21D]
7267024 Gear, and method and apparatus for manufacturing the sameMay 21, 03Sep 11, 07[F16H]
6905011 Transmission gear with dog clutch gear and method for manufacturing the sameJul 15, 03Jun 14, 05[F16D, F16H]
6761621 Gear and method of manufacturing gearFeb 29, 00Jul 13, 04[B24B]
6432017 Sprocket with dog gearFeb 29, 00Aug 13, 02[F16H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7424834 Gear, method and device for manufacturing the sameExpiredAug 13, 03Sep 16, 08[F16H]
2007/0144,289 GearAbandonedJun 01, 06Jun 28, 07[F16H]
2005/0278,952 Gear product and method for manufacturing the sameAbandonedJul 02, 05Dec 22, 05[B23P, F16H]
6935482 Clutch gear having boss part with spline and method for manufacturing the sameExpiredJul 15, 03Aug 30, 05[F16D]
2005/0136,223 Chamfering method, forging device used in the chamfering method, and chamfered productAbandonedDec 19, 03Jun 23, 05[B32B]
4938089 Forged gear for a transmissionExpiredJan 25, 89Jul 03, 90[F16D, F16H]

Top Inventors for This Owner

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