DENKI KOGYO COMPANY, LIMITED

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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 441
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 4107
 
  
 
H01Q AERIALS 3107
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 190
 
  
 
H04B TRANSMISSION 1209
 
  
 
H04W WIRELESS COMMUNICATION NETWORKS 1187

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0013,682 HIGH FREQUENCY INDUCTION CONTINUOUS HEATING METHOD AND HIGH FREQUENCY INDUCTION CONTINUOUS HEATING APPARATUSSep 23, 16Jan 12, 17[H05B, C21D]
2014/0346,164 HIGH FREQUENCY INDUCTION CONTINUOUS HEATING METHOD AND HIGH FREQUENCY INDUCTION CONTINUOUS HEATING APPARATUSDec 20, 12Nov 27, 14[H05B, C21D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9581207 Transfer mechanism structureMay 28, 13Feb 28, 17[F16D]
9379434 Transmitting-receiving-separated dual-polarization antennaOct 10, 12Jun 28, 16[H01Q]
8845831 Heat treatment methodFeb 02, 09Sep 30, 14[C21D]
5477035 High frequency induction and method with temperature controlApr 08, 94Dec 19, 95[H05B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0089,167 Arrangement Structure of Guide Chip for High-Frequency Induction Heating CoilAbandonedJul 17, 08Apr 21, 11[H05B]
2011/0073,591 Guide Chip Structure for High-Frequency Induction Heating CoilAbandonedJul 17, 08Mar 31, 11[H05B]
6300608 Induction heating coil and induction heating device using the induction heating coilExpiredOct 12, 99Oct 09, 01[H05B]
5814940 Radio frequency particle accelerator having means for synchronizing the particle beamExpiredApr 12, 96Sep 29, 98[H05H]
5079399 High-frequency induction heating apparatusExpiredAug 06, 90Jan 07, 92[H05B]
4662903 Electrostatic dust collectorExpiredJun 02, 86May 05, 87[B03C]

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