MATSUSHITA REFRIGERATION COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 3104
 
  
 
A47B TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE 151
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119
 
  
 
C08J WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER- TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C C08F, C08G or C08H 177
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 167
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 144
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1153
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 186

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7691512 Fuel-cell power-generation system and methodJun 26, 06Apr 06, 10[H01M]
7372183 Permanent magnet synchronous motorJan 12, 07May 13, 08[H02K]
7183686 Permanent magnet synchronous motorNov 29, 05Feb 27, 07[H02K]
7019427 Permanent magnet synchronous motorJan 14, 05Mar 28, 06[H02K]
6802997 Method of manufacturing rigid polyurethane foam material, method of manufacturing refrigerator, and refrigeratorNov 08, 02Oct 12, 04[C08J]
6655765 Refrigerator door openerDec 26, 02Dec 02, 03[A47B]
6206655 Electrically-operated sealed compressorSep 14, 99Mar 27, 01[F04B]
6014004 Refrigerating apparatus, and refrigerator control and brushless motor starter used in sameOct 20, 98Jan 11, 00[H02P]
6001450 Vacuum thermal insulating material and thermally insulating case using the sameNov 20, 98Dec 14, 99[B32B]
5970733 Refrigerating apparatus and refrigerator control and brushless motor starter used in sameOct 20, 98Oct 26, 99[F25B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0163,395 Method for recycling thermal insulation material, recycled article and refrigeratorAbandonedAug 06, 03Jul 27, 06[B02C]
2005/0160,185 Electrical home appliance having access control meansAbandonedJun 14, 04Jul 21, 05[G06F]
6876119 Permanent magnet synchronous motorExpiredMar 05, 04Apr 05, 05[H02K]
6848892 Oscillation-type compressorExpiredJul 09, 03Feb 01, 05[F04B]
2005/0008,539 Sensor informationlinkage apparatusAbandonedJun 10, 04Jan 13, 05[G01N]
2004/0213,701 Gas sensor and production method for gas sensorAbandonedJun 10, 04Oct 28, 04[G01N]
2004/0101,413 Control device of linear compressor drive systemAbandonedDec 09, 03May 27, 04[F04B]
2004/0028,786 Methods of freezing and thawing food, method of freezing, thawing, and cooking foods, devices for freezing and thawing food, device of freezing, thawing, and cooking food, and frozen foodAbandonedJul 23, 03Feb 12, 04[A23C]
6657326 Efficient cylindrical linear motorExpiredJun 27, 01Dec 02, 03[H02K]
6632076 Oscillation-type compressorExpiredSep 30, 02Oct 14, 03[F04B]
6530756 Oscillation-type compressorExpiredJan 10, 02Mar 11, 03[F04B]
2002/0186,538 Cooling module and the system using the sameAbandonedJun 07, 02Dec 12, 02[H05K]
6409488 Rotary compressorExpiredSep 18, 00Jun 25, 02[F04C]
6354818 Oscillation-type compressorExpiredDec 21, 00Mar 12, 02[F04B]
6355700 Foamed thermal insulating material and insulated structureExpiredApr 29, 99Mar 12, 02[C08G]
6276906 Spherical casing and elastic support for a hermetic motor compressorExpiredNov 18, 99Aug 21, 01[F04B]
6239992 Electric power unit with early auxiliary capacitor chargingExpiredSep 11, 00May 29, 01[H02M]
6203292 Oscillation-type compressorExpiredOct 13, 98Mar 20, 01[F04B]
6184597 Linear motor and linear compressorExpiredFeb 05, 99Feb 06, 01[H02H]
6157554 Power unitExpiredJun 09, 99Dec 05, 00[H02M]

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