HITACHI APPLIANCES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 1256
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
  
 
F25C PRODUCTION, WORKING, STORING OR DISTRIBUTION OF ICE 223
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 299
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 282
 
  
 
G21C NUCLEAR REACTORS 241
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 2105
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR194
 
  
 
F01C ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 128
 
  
 
F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS 146

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0117,762 PERMANENT-MAGNET DYNAMO-ELECTRIC MACHINE AND COMPRESSOR USING THE SAMEMar 24, 15Apr 27, 17[H02K, F04C, F25B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9766679 Power monitoring device and power monitoring systemApr 16, 12Sep 19, 17[H02J, G06F]
9651272 Air-conditioning control system and air-conditioning control methodAug 29, 12May 16, 17[H02J, H04L, G05B, F24F]
9010281 Hot water supply systemDec 15, 10Apr 21, 15[F24H, F24D, F22D]
8847534 Converter, motor driving module, and refrigerating apparatusMar 31, 10Sep 30, 14[H02M, H02P]
8713960 Ice supplying apparatus and refrigerator having the sameAug 01, 12May 06, 14[F25C]
8373326 Axial gap motor, compressor, motor system, and power generatorOct 22, 10Feb 12, 13[H02K]
8261570 Ice supplying apparatus and refrigerator having the sameFeb 18, 09Sep 11, 12[F25C]
7334417 Air conditioner and power line communication systemJan 13, 05Feb 26, 08[F25B]
7260451 Air conditioner management system and converter unit thereforAug 11, 03Aug 21, 07[G05B]
7246498 Refrigerating apparatusSep 11, 02Jul 24, 07[F25B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0287,602 Motor Control Device And RefrigeratorAbandonedApr 09, 13Oct 31, 13[H02P, F04B]
2013/0195,707 Refrigerant CompressorAbandonedAug 08, 11Aug 01, 13[F04C]
2013/0024,045 POWER CONTROL UNITAbandonedJul 19, 12Jan 24, 13[H02J, G06F]
2012/0313,432 POWER DISTRIBUTION SYSTEM CONNECTING APPARATUSAbandonedJun 04, 12Dec 13, 12[H02J]
2012/0301,334 Compressor and Refrigerating Cycle ApparatusAbandonedMay 24, 12Nov 29, 12[F04B]
2012/0230,853 Scroll CompressorAbandonedFeb 14, 12Sep 13, 12[F01C]
2012/0230,854 Scroll CompressorAbandonedJan 31, 12Sep 13, 12[F01C]
2012/0131,945 Self-Starting Type Axial Gap Synchronous Motor, Compressor and Refrigeration Cycle Apparatus Using the SameAbandonedNov 21, 11May 31, 12[H02K, F04B, F25D]
2012/0024,007 COMPRESSOR FOR REFRIGERATION AND AIR-CONDITIONING AND REFRIGERATING AND AIR-CONDITIONING APPARATUSAbandonedJul 29, 11Feb 02, 12[F25B]
2010/0247,366 Screw compressorAbandonedFeb 18, 10Sep 30, 10[F04C]
7770403 Indoor and outdoor unit communication via signal from a power lineExpiredFeb 10, 09Aug 10, 10[G01M, F25B, G05D]
7772736 Permanent magnet synchronous motor, rotor of the same, and compressor using the sameExpiredJun 05, 07Aug 10, 10[H02K]
2010/0111,741 SCROLL COMPRESSORAbandonedOct 30, 09May 06, 10[F04C]
7690211 Refrigerating apparatusExpiredSep 22, 06Apr 06, 10[F25B]
7603872 Heat-pump hot water supply apparatusExpiredJan 26, 06Oct 20, 09[F25B]
2009/0180,910 HELIUM ENCLOSED COMPRESSORAbandonedMar 04, 09Jul 16, 09[F01C]
7557546 Unidirectional DC-DC converterExpiredJan 26, 07Jul 07, 09[G05F]
7531934 Self-start synchronous motor with permanent magnets and at least one frictional agitation joint, method for manufacturing the same and compressor comprising the sameExpiredMay 25, 06May 12, 09[H02K]
7523619 Indoor and outdoor unit communication via signal from a power lineExpiredApr 14, 04Apr 28, 09[G01M, F25B, G05D]
7517576 Vacuum insulation panelExpiredOct 11, 05Apr 14, 09[F16L]

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