SEIKO INSTRUMENTS INC. (SEIKO INSTRUMENTS KABUSHIKI KAISHA)

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 5102
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 363
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 260
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 2136
 
  
 
A47B TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 151
 
  
 
B60L ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL 175
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 128
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 164
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS173
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 169

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6598288 Armature of motor, manufacturing method of the same and motor using the same and motor having the sameOct 31, 00Jul 29, 03[H02K]
6334754 Turbomolecular pumpJun 22, 99Jan 01, 02[F04D, F01D]
6184640 DC brushless motor, magnetic bearing device and turbomolecular pump deviceApr 26, 99Feb 06, 01[H02P]
6163952 Method of manufacturing armature of motor using hoop memberNov 05, 97Dec 26, 00[H02K]
6036368 Dynamic pressure bearing deviceDec 09, 97Mar 14, 00[F16C]
5988075 Swiveling table deviceAug 12, 97Nov 23, 99[A47B]
5954482 Compressor having pressure eliminating meansAug 29, 96Sep 21, 99[F04B]
5923559 Magnetic bearing apparatusApr 29, 97Jul 13, 99[G06F, G06G]
5821647 Spindle motorDec 06, 96Oct 13, 98[H02K, G02B]
5804896 High speed spindle motor and apparatus equipped with high speed spindle motorDec 19, 95Sep 08, 98[H02K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6607365 Vacuum pump and vacuum apparatusExpiredAug 26, 99Aug 19, 03[F04B]
6419461 Turbo molecular pumpExpiredJun 15, 01Jul 16, 02[F04B]
6364604 Vacuum pump and vacuum apparatus equipped with vacuum pumpExpiredJul 06, 99Apr 02, 02[F03B]
6312234 Turbo molecular pumpExpiredAug 04, 98Nov 06, 01[F04B]
6298279 CAD/CAM apparatus and machining apparatus for processing position/force informationExpiredApr 27, 98Oct 02, 01[G06F]
6294890 Robot controllerExpiredJul 15, 99Sep 25, 01[G05B]
6284073 Core slider mount apparatus and core slider mount methodExpiredDec 11, 98Sep 04, 01[G11B, B32B]
6275778 Location-force target path creatorExpiredFeb 25, 98Aug 14, 01[B25J]
6253120 Position and/or force controlling apparatus using sliding mode decoupling controlExpiredApr 27, 98Jun 26, 01[G05B, B25J]
6229231 Reciprocating motor having controllable rotor positionExpiredNov 05, 97May 08, 01[H02K]
6208051 Spindle apparatusExpiredMar 17, 95Mar 27, 01[H02K]
6204776 Communication abnormality detecting/coping device and vacuum pump remote monitor control deviceExpiredMar 29, 00Mar 20, 01[G01V]
6158225 Automotive air-conditioning apparatusExpiredDec 09, 98Dec 12, 00[F25B]
6125635 Temperature adjusting deviceExpiredDec 30, 98Oct 03, 00[F25B]
6048104 Ferrule for use in optical fiber connectorExpiredSep 06, 96Apr 11, 00[G03B]
6023115 Magnetic bearing apparatus with radial position correcting electromagnetExpiredJan 30, 97Feb 08, 00[H02K, F04D]
5984501 Super-precision positioning systemExpiredMar 24, 97Nov 16, 99[B23Q]
5980192 Table feederExpiredMay 05, 93Nov 09, 99[B65G]
5971836 Grinding machineExpiredAug 29, 95Oct 26, 99[B24B]
5973468 Magnetic bearing devicesExpiredJul 18, 97Oct 26, 99[H02K, F16C]

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