Rinnai Kabushiki Kaisha

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F23N REGULATING OR CONTROLLING COMBUSTION 318
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 250
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
F23D BURNERS 131
 
  
 
F23M CONSTRUCTIONAL DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR 115
 
  
 
F24C OTHER DOMESTIC STOVES OR RANGES; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION 132
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 126
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1110
 
  
 
1403 COMMUNICATIONS EQUIPMENT, WIRELESS REMOTE CONTROLS AND RADIO AMPLIFIERS169
 
  
 
0702 COOKING APPLIANCES, UTENSILS AND CONTAINERS145

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D678219 Remote control for home electronicsJan 25, 12Mar 19, 13[1403]
D676707 Burner plateJun 23, 10Feb 26, 13[0702]
D530236 Operation indicator of a heaterNov 24, 03Oct 17, 06[]
D505997 HeaterNov 24, 03Jun 07, 05[2303]
6234164 Intake and discharge tube closure detector for combustion device of forced intake and discharge typeFeb 18, 00May 22, 01[F23N]
6223992 Air-conditioning system with timer deviceDec 11, 98May 01, 01[F23N, F28F]
6089221 Space heaterJul 02, 99Jul 18, 00[F24H]
5919035 Cross flow type burner apparatusMar 19, 97Jul 06, 99[F23N]
5661905 Method of making a burner deviceJun 07, 95Sep 02, 97[B23P]
5525054 Burner device and a method of making the sameSep 10, 93Jun 11, 96[F23M, F23D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6263698 Dripping device for an absorption type refrigeratorExpiredJul 02, 99Jul 24, 01[F25B]
5417566 Method of preventing burning resonance noise and a burner plateExpiredNov 22, 93May 23, 95[F23D]
5157239 OvenExpiredMay 16, 90Oct 20, 92[H05B, F24C]
5097112 OvenExpiredMay 16, 90Mar 17, 92[H05B]
5080610 Apparatus for fixing a halogen lampExpiredMay 16, 90Jan 14, 92[H01K]
5045671 Oven using halogen lampsExpiredMay 16, 90Sep 03, 91[A21B]
4640261 Ceramic burner plate for gas combustionExpiredJan 29, 85Feb 03, 87[F24C]
4638789 Safety apparatus for combustion deviceExpiredFeb 08, 85Jan 27, 87[F24H, F23N]
4627416 Water heaterExpiredMar 06, 84Dec 09, 86[F23H]
4583937 Combustion apparatus with control means including an oxygen sensing probe and probe thereforExpiredDec 15, 80Apr 22, 86[F23N, G01N]
4505253 Water heaterExpiredFeb 02, 84Mar 19, 85[F23H]
D276492 Cooking tableExpiredJan 22, 82Nov 27, 84[]
D275830 Barbecue for placement in an opening in a cabinet, table or the likeExpiredSep 17, 81Oct 09, 84[]
D274111 Barbecue for placement in an opening in a cabinet, table or the likeExpiredSep 17, 81Jun 05, 84[]
4406613 Safety apparatus for room heating deviceExpiredAug 14, 81Sep 27, 83[F23N]
4404420 Combustion detecting elementExpiredAug 14, 81Sep 13, 83[H01L]
4398882 Combustion safety apparatusExpiredAug 25, 80Aug 16, 83[F23N]
4396370 Combustion safety apparatusExpiredNov 24, 80Aug 02, 83[F23N]
4395226 Combustion safety apparatusExpiredAug 14, 80Jul 26, 83[F23N]
4340357 Infrared radiation gas burner plateExpiredSep 25, 79Jul 20, 82[F23D]

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