CHUO HATSUJO KABUSHIKI KAISHA

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 1035
 
  
 
C22C ALLOYS 963
 
  
 
F16F SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION851
 
  
 
B21F WORKING OR PROCESSING OF WIRE 614
 
  
 
B60G VEHICLE SUSPENSION ARRANGEMENTS 645
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 466
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 285
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155
 
  
 
B60N VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR 260
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 271

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0175,216 ELECTRICAL HEATING DEVICEMar 03, 17Jun 22, 17[H05B, F27D, C21D, B21D]
2016/0207,091 COIL SPRING FORMING METHOD AND FORMING DEVICESep 02, 14Jul 21, 16[B21F]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9915284 Terminal supporting apparatus for control cableMar 21, 17Mar 13, 18[F16C, F16H]
9638238 Terminal supporting apparatus for control cableOct 22, 12May 02, 17[F16C]
9623475 Method for producing springJul 12, 11Apr 18, 17[B21F, C21D]
9453548 Method and apparatus for adjusting spring characteristics of a springMar 22, 16Sep 27, 16[F16F, B21C]
9322447 Method and apparatus for adjusting spring characteristics of a springJan 14, 11Apr 26, 16[F16F]
9068615 Spring having excellent corrosion fatigue strengthAug 23, 11Jun 30, 15[F16F, C21D, C22C]
8936236 Coil spring for automobile suspension and method of manufacturing the sameSep 28, 10Jan 20, 15[F16F, C22C]
8789817 Spring steel and spring having superior corrosion fatigue strengthSep 28, 10Jul 29, 14[C22C]
8777194 Spiral spring assemblyJan 25, 07Jul 15, 14[F16F]
8530779 Disc spring and process of manufacturing the sameJul 09, 10Sep 10, 13[B23K, F16F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0208,875 SPRING AND METHOD FOR MANUFACTURING THE SPRINGAbandonedSep 02, 14Jul 21, 16[C23C, B24C, F16F, C21D, C23F, C22C]
2016/0122,843 SPRING STEEL, SPRING, AND MANUFACTURING METHOD OF SPRINGAbandonedMay 08, 14May 05, 16[C21D, C22C]
2016/0089,995 CHARGING STANDAbandonedSep 10, 15Mar 31, 16[B60L]
2016/0089,996 CHARGING STANDAbandonedSep 11, 15Mar 31, 16[B60L]
2015/0014,128 CHARGING-CABLE STORAGE DEVICEAbandonedOct 10, 12Jan 15, 15[H01R, H01B, H01H]
2015/0014,464 CABLE STORAGE DEVICEAbandonedFeb 20, 13Jan 15, 15[B65H, H02G]
2015/0008,629 SPIRAL SPRINGAbandonedNov 07, 12Jan 08, 15[F16F]
2015/0008,878 CHARGING-CABLE STORAGE DEVICEAbandonedFeb 01, 13Jan 08, 15[H02J, B60L]
2015/0008,274 CHARGING-CABLE STORAGE DEVICEAbandonedOct 10, 12Jan 08, 15[H01M, B65H, H02G, B60L]
2014/0339,352 CABLE HOUSING DEVICEAbandonedFeb 01, 13Nov 20, 14[B65H, H02G]
2014/0311,849 CABLE HOUSING APPARATUSAbandonedOct 26, 12Oct 23, 14[H02J, B65H, H02G]
2014/0274,516 HOUSING DEVICEAbandonedAug 06, 12Sep 18, 14[F16H]
2014/0246,534 HOUSING DEVICEAbandonedAug 06, 12Sep 04, 14[B65H]
2014/0224,914 HOUSING DEVICEAbandonedAug 06, 12Aug 14, 14[B65H]
2014/0175,211 CORD HOUSING APPARATUSAbandonedMar 23, 12Jun 26, 14[B65H, H02G]
2014/0157,940 CABLE AND OPERATING FORCE TRANSMISSION APPARATUSAbandonedJul 31, 12Jun 12, 14[F16C]
2014/0116,189 CONTROL CABLE TERMINAL SUPPORTING APPARATUSAbandonedJun 05, 12May 01, 14[F16C]
2014/0001,300 CORD ACCOMMODATION APPARATUSAbandonedMar 06, 12Jan 02, 14[B65H, H02G]
2013/0160,599 CONTROL CABLEAbandonedJun 21, 11Jun 27, 13[F16C]
2013/0127,099 HIGH-STRENGTH SPRINGAbandonedJun 21, 11May 23, 13[F16F]

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