MITSUBISHI NUCLEAR FUEL CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G21C NUCLEAR REACTORS 1033
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 291
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2204
 
  
 
B01D SEPARATION 1133
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 138
 
  
 
C22B PRODUCTION OR REFINING OF METALS 127
 
  
 
C22C ALLOYS 171
 
  
 
C22F CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS 136
 
  
 
F16K VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING172

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6272203 X-ray fluorescence inspection apparatusAug 05, 99Aug 07, 01[G01N]
6125161 Method for making Zr alloy nuclear reactor fuel cladding having excellent corrosion resistance and creep propertiesSep 16, 99Sep 26, 00[G21C, C22F, C22C]
6014418 Fuel rod for light water reactor and method for manufacturing the sameAug 08, 97Jan 11, 00[G21C]
5968375 Method for welding and apparatus thereforDec 15, 97Oct 19, 99[B23K]
5912935 Fuel rod for light water reactor and method for manufacturing the sameAug 08, 97Jun 15, 99[G21C]
5799685 Tank protective containerNov 27, 96Sep 01, 98[F16K]
5652432 Cylindrical body inspection apparatus utilizing displacement information and reflected light informationJun 06, 95Jul 29, 97[G01N]
5626765 Method for adsorbing and separating heavy metal elements by using a tannin adsorbentDec 23, 93May 06, 97[B01D]
5515408 Fuel assemblyDec 02, 94May 07, 96[G21C]
5475913 Method for assembling fuel assemblyApr 20, 94Dec 19, 95[B21D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6909766 Production method for a nuclear fuel assembly support grid and a nuclear fuel assembly support grid produced by the sameExpiredNov 05, 02Jun 21, 05[G21C]
6901128 Foreign matter filter for fuel assembly in pressurized water reactorExpiredJul 22, 02May 31, 05[G21C]
2005/0031,067 Foreign matter filter for fuel assembly in pressurized water reactorAbandonedAug 30, 04Feb 10, 05[G21C]
6429403 Supporting grid welding apparatusExpiredJan 27, 00Aug 06, 02[B23K]
6339205 Grid support welding apparatusExpiredJan 03, 00Jan 15, 02[B23K]
6264840 Process for producing insoluble tannin and method for adsorbing hexavalent chromium by using the tanninExpiredAug 27, 99Jul 24, 01[C02F, B01D]
6103996 Method for producing a fuel rodExpiredApr 01, 99Aug 15, 00[B23K]
6068966 Method for printing bar-codesExpiredJun 13, 97May 30, 00[B23K]
5912776 Interior image receiving apparatusExpiredSep 29, 97Jun 15, 99[G01N, G02B]
5762838 Method of producing nuclear fuel pelletExpiredSep 03, 96Jun 09, 98[G21C]
5638416 Fuel assemblyExpiredDec 02, 94Jun 10, 97[G21C]
5577081 Method of forming grids for nuclear fuel assembly and grids formed by same methodExpiredJun 07, 95Nov 19, 96[G21C]
5430778 Method for measuring fuel rod positions and apparatus thereforExpiredMar 11, 94Jul 04, 95[G21C]
5422920 Crystal grain size estimating method for nuclear fuel pelletsExpiredApr 26, 94Jun 06, 95[G21C]
5400498 Apparatus for removing keys from support gridExpiredOct 21, 93Mar 28, 95[B23P]
5401933 Method for welding of end plug of control rodExpiredNov 19, 93Mar 28, 95[B23K]
5379329 Method and apparatus for inspecting end face of pelletExpiredFeb 25, 94Jan 03, 95[G21C]
5374345 Partial plating method for a plate member and masking jig for use thereinExpiredAug 02, 93Dec 20, 94[C25D]
5374800 Method for welding of fuel rodExpiredNov 19, 93Dec 20, 94[B23K, G21C]
5369866 Method for insertion or removal of fuel rods into or from a grid of a nuclear fuel assemblyExpiredAug 30, 93Dec 06, 94[B23P, G21C]

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