SUMIDA ELECTRIC CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 678
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 176
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 1101

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7522028 Magnetic elementMay 10, 06Apr 21, 09[H01F]
7515443 Inverter circuitJun 12, 07Apr 07, 09[H02M, H05B, H02H]
7443277 Coil componentJun 15, 06Oct 28, 08[H01F]
7259650 Magnetic elementJun 27, 06Aug 21, 07[H01F]
7042324 Surface mount inductorJun 22, 04May 09, 06[H01F]
6356179 Inductance deviceFeb 18, 00Mar 12, 02[H01F]
D434723 TransformerJun 04, 99Dec 05, 00[1302]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7397336 Coil componentExpiredNov 06, 06Jul 08, 08[H01F]
6950002 Inductance elementExpiredNov 12, 04Sep 27, 05[H01F]

Top Inventors for This Owner

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