DAITO COMMUNICATION APPARATUS CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 193

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6778061 FuseMar 12, 03Aug 17, 04[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5420560 FuseExpiredOct 12, 93May 30, 95[H01H]
5374379 PTC composition and manufacturing method thereforExpiredSep 15, 92Dec 20, 94[C08K]
5358793 PTC deviceExpiredMay 07, 92Oct 25, 94[B22F]
5280263 PTC deviceExpiredOct 30, 91Jan 18, 94[H01C]
5247276 PTC deviceExpiredApr 23, 91Sep 21, 93[H01C]
5241741 Method of making a positive temperature coefficient deviceExpiredJul 10, 92Sep 07, 93[H01C]
5210517 Self-resetting overcurrent protection elementExpiredJun 03, 91May 11, 93[H01C]
5190697 Process of making a PTC composition by grafting method using two different crystalline polymers and carbon particlesExpiredDec 18, 90Mar 02, 93[H01B]
5171774 PTC compositionsExpiredNov 22, 89Dec 15, 92[C08K]
4880577 Process for producing self-restoring over-current protective device by grafting methodExpiredJul 19, 88Nov 14, 89[B29C]

Top Inventors for This Owner

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