Sawafuji Electric Co., Ltd.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 5102
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 171
 
  
 
F02N STARTING OF COMBUSTION ENGINES 132
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 183
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 1132

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7492067 Stator for outer rotor multipole generator and method of assembling the statorSep 24, 03Feb 17, 09[H02K]
7342333 Outer rotor type multipolar generatorSep 24, 03Mar 11, 08[H02K]
7194925 StarterJul 22, 03Mar 27, 07[F02N]
6994530 Vibrating type compressorOct 23, 01Feb 07, 06[F04B]
6737950 Winding structure of starterJun 19, 02May 18, 04[H01F]
D461482 RefrigeratorJan 08, 01Aug 13, 02[1507]
6333579 Stator for outer rotor-type multi-pole generatorMar 20, 00Dec 25, 01[H02K]
6091172 Coil connecting structure in outer rotor-type multi-pole generatorSep 22, 98Jul 18, 00[H02K]
6067945 Engine generatorSep 01, 98May 30, 00[F02B]
6030260 Connecting terminal for statorNov 05, 98Feb 29, 00[H01R]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7040184 StarterExpiredJul 28, 03May 09, 06[F01N]
6914504 Electromagnetic switch for a starterExpiredAug 04, 03Jul 05, 05[H01H]
6857984 Starter having thrust receiving member between motor shaft and output shaftExpiredJun 11, 02Feb 22, 05[F16H]
6828707 Starter having a seal member near bearing for holding output shaftExpiredJun 11, 02Dec 07, 04[H02K]
6776273 Starter having braking member for one-way clutchExpiredDec 27, 02Aug 17, 04[F02N, F16D]
6771522 Inverter parallel operation systemExpiredJun 10, 03Aug 03, 04[G09F]
2003/0200,827 Starter for internal combustion engineAbandonedApr 07, 03Oct 30, 03[F02N]
6522106 Automatic voltage regulating system for engine generatorExpiredAug 02, 99Feb 18, 03[H02P, H02H]
2002/0121,019 Method of assembling starter lead wireAbandonedJan 16, 02Sep 05, 02[H02K, H01R]
6346752 Electromagnetic retarder with a built-in exciterExpiredDec 13, 99Feb 12, 02[H02K]
6171063 Control circuit for vibrating compressors for protecting against excessive voltage and temperatureExpiredJul 30, 98Jan 09, 01[F04B]
5965949 Engine-driven generatorExpiredJan 23, 98Oct 12, 99[H02P]
5924393 Engine generatorExpiredSep 08, 97Jul 20, 99[F02B]
5872414 Electric rotating machineExpiredApr 10, 97Feb 16, 99[H02K]
5818136 Drip-proof structure for engine generatorExpiredAug 28, 97Oct 06, 98[H02K]
5742492 Method of driving vibrating compressorsExpiredAug 27, 96Apr 21, 98[H02M, F04B]
5704771 Vibrating compressorExpiredMay 28, 96Jan 06, 98[F04B]
5661357 Electric rotating machineExpiredNov 28, 95Aug 26, 97[H02K]
5658132 Power supply for vibrating compressorsExpiredOct 06, 94Aug 19, 97[F04B]
5656896 Power supply for vibrating compressorsExpiredFeb 01, 96Aug 12, 97[H02K, H02M]

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