KEIHIN THERMAL TECHNOLOGY CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 6812
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 4911
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 3437
 
  
 
B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES934
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 749
 
  
 
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 489
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 497
 
  
 
F28B STEAM OR VAPOUR CONDENSERS 44
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 353
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3154

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0305,237 EVAPORATOR AND VEHICULAR AIR CONDITIONER USING THE SAMEApr 05, 17Oct 26, 17[B60H]
2016/0356,562 HEAT EXCHANGER AND METHOD OF MANUFACTURING THE SAMEMay 13, 16Dec 08, 16[B60H, F28D, F25B, F28F]
2016/0290,744 CLAD MATERIAL, METHOD OF MANUFACTURING PIPE, PIPE, AND HEAT EXCHANGER USING PIPEMay 31, 16Oct 06, 16[F28D, F28F, C22C, B32B]
2015/0360,534 EVAPORATOR WITH COOL STORAGE FUNCTIONJun 17, 15Dec 17, 15[B60H]
2015/0129,187 CONDENSERNov 06, 14May 14, 15[F28D]
2015/0121,945 HEAT EXCHANGER WITH THERMAL STORAGE FUNCTIONOct 29, 14May 07, 15[B23P, F25B, F25D, F24F]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9863652 Heat exchanger with thermal storage functionOct 29, 14Jan 09, 18[B23P, F25B, F25D, F24F]
9855818 Evaporator with cool storage functionJun 17, 15Jan 02, 18[B60H, F28D, F25D]
9827638 Heat exchanger and method of manufacturing the sameJul 06, 15Nov 28, 17[B23P, B23K, F28D, F28F]
9803928 Evaporator and vehicular air conditioner using the sameApr 09, 14Oct 31, 17[B60H, F28D, F25B, F28F]
9791190 CondenserMay 12, 15Oct 17, 17[F28D, F25B, F28F]
9744610 Clad material, method of manufacturing brazed pipe, and brazed pipeJun 23, 14Aug 29, 17[F16L, B23K, F28D, F28F, B32B, C22C]
9746217 Evaporator with cool storage functionDec 16, 13Aug 29, 17[F28D, F25B, F28F]
9732996 Evaporator with cool storage functionAug 29, 12Aug 15, 17[B60H, F28D, F25B]
9702598 EvaporatorMay 08, 15Jul 11, 17[F28D, F25B, F28F]
9625219 Evaporator and vehicular air conditioner using the sameApr 15, 14Apr 18, 17[F28D, F28F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0241,080 AIR-CONDITIONING APPARATUS FOR VEHICLEAbandonedFeb 04, 15Aug 27, 15[F24F]
2013/0319,642 CENTRIFUGAL BLOWER WITH COOLING FUNCTIONAbandonedMay 29, 13Dec 05, 13[F04D]
2013/0212,881 METHOD OF MANUFACTURING EVAPORATOR WITH COOL STORAGE FUNCTIONAbandonedFeb 19, 13Aug 22, 13[B23P]
8371366 Heat exchangerExpiredFeb 10, 07Feb 12, 13[F28D, F28F]
2012/0305,228 CONDENSERAbandonedMay 25, 12Dec 06, 12[F28F]
2012/0145,447 Via structure, method for forming the via structure, and circuit board with the via structure and method for manufacturing the circuit boardAbandonedApr 08, 11Jun 14, 12[H05K]
2012/0111,547 CONDENSERAbandonedNov 08, 11May 10, 12[F28F]
2012/0042,687 EVAPORATOR WITH COOL STORAGE FUNCTIONAbandonedAug 22, 11Feb 23, 12[F25B]
2011/0154,855 Evaporator with cool storage functionAbandonedDec 17, 10Jun 30, 11[F25B, F28F]
2010/0223,949 Evaporator with cool storage functionAbandonedFeb 22, 10Sep 09, 10[F25B]
7726389 EvaporatorExpiredDec 27, 05Jun 01, 10[F25B, F28F]
2010/0083,694 EvaporatorAbandonedOct 06, 09Apr 08, 10[B60H, F25B, F28F]
7588072 Laminated heat exchangerExpiredJan 30, 07Sep 15, 09[F28D]
7559263 Pressure resistance inspecting method and pressure resistance inspecting apparatus for heat exchangersExpiredApr 21, 05Jul 14, 09[G01M]
2009/0166,019 Double-wall-tube heat exchangerAbandonedDec 16, 08Jul 02, 09[F28F]
2009/0019,885 EvaporatorAbandonedJul 01, 08Jan 22, 09[B60H, F25B, F28F]
6973804 Duplex-type heat exchanger and refrigeration system equipped with said heat exchangerExpiredFeb 04, 02Dec 13, 05[F28B, F28D, F25B]
6874570 Integrated heat exchangerExpiredApr 29, 03Apr 05, 05[F28D, F28F]
6854511 Heat exchangerExpiredOct 08, 03Feb 15, 05[F28B]
6739167 Work roll for use in rolling apparatusExpiredJan 31, 03May 25, 04[B21H]

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