SEIKO SEIKI KABUSHIKI KAISHA

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 199
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 1106

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5439650 Reaction vesselNov 03, 92Aug 08, 95[G05F, B01S]
5280206 Armature statorJul 10, 92Jan 18, 94[H02K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6872065 Vane gas compressor having two discharge passages with the same lengthExpiredSep 06, 96Mar 29, 05[F04C]
5639206 Transferring deviceExpiredMay 04, 95Jun 17, 97[B25J]
5485910 ConveyorExpiredJul 12, 94Jan 23, 96[B65G]
5361472 NC complex automatic latheExpiredSep 20, 91Nov 08, 94[B23B]
5310397 Computerized numerical control automatic complex latheExpiredMay 08, 92May 10, 94[B23Q]
5288199 Transporting device of magnetically floating typeExpiredSep 23, 92Feb 22, 94[B25J]
5284411 Conveyor for conveying workpieces in a vacuum chamberExpiredMar 16, 92Feb 08, 94[B65G]
5237861 Magnetic disk inspection apparatusExpiredJul 16, 91Aug 24, 93[G01B]
5216590 Contactless guided positioning tableExpiredJul 13, 90Jun 01, 93[H02K, G05B]
5187434 Apparatus for detecting machining conditions of a workpieceExpiredNov 26, 90Feb 16, 93[G01B]
5166920 Disk clamp apparatusExpiredNov 26, 90Nov 24, 92[G11B]
5133158 Control system of grinding machineExpiredOct 31, 90Jul 28, 92[B24B]
5027280 Machining apparatus having a main spindle supported by magnetic bearingsExpiredNov 01, 88Jun 25, 91[B24B]
5024025 Control system of grinding machineExpiredOct 04, 89Jun 18, 91[B24B]
4956945 Internal grinderExpiredMar 14, 89Sep 18, 90[B24B]
4868805 Inspection apparatusExpiredAug 13, 87Sep 19, 89[H04N]
4839550 Controlled type magnetic bearing deviceExpiredDec 13, 85Jun 13, 89[F16C]
4824330 Variable-capacity gas compressorExpiredMar 27, 87Apr 25, 89[F04B, F04C]
4747276 Helium compressor apparatusExpiredApr 09, 87May 31, 88[F25B]
4713914 Internal grinding methodExpiredJan 28, 86Dec 22, 87[B24B]

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Top Inventors for This Owner

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