SANKOSHA CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 572
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 3359
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 2157
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2131
 
  
 
H01C RESISTORS127
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 1155

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9812858 Surge protective systemSep 21, 15Nov 07, 17[H01C, H02H]
9153955 Communication line isolatorApr 11, 13Oct 06, 15[H02H]
8730638 Lightning surge detector, surge protective device, and management system for surge protective deviceJul 27, 12May 20, 14[H02H]
8647158 Device for mounting protector on din railJun 11, 12Feb 11, 14[H01R]
8482277 Surge current detection deviceMar 02, 12Jul 09, 13[G01R]
8410773 Surge current detection deviceSep 13, 10Apr 02, 13[G01R]
6791813 Communication line surge protecting systemAug 23, 02Sep 14, 04[H02H]
5905282 Multi-terminal surge protection deviceMay 15, 97May 18, 99[H01L, 23/6]
5486709 Surge protection deviceMar 26, 93Jan 23, 96[H01L]
5371385 Surge protection deviceMar 15, 94Dec 06, 94[H01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7619161 Grounding device and method of constructing the sameExpiredApr 13, 06Nov 17, 09[H05K]
2008/0198,527 Surge protection device and surge protection apparatus using thereofAbandonedMay 30, 07Aug 21, 08[H01C, H02H]
7385140 Grounding conductorExpiredJun 20, 05Jun 10, 08[]
6612751 Optical repeating device with monitoring functionExpiredMar 29, 00Sep 02, 03[G02B]
5343065 Method of controlling surge protection device hold currentExpiredOct 15, 92Aug 30, 94[H01L]
5083185 Surge absorption deviceExpiredFeb 26, 90Jan 21, 92[H01L]
4984125 Arrester apparatusExpiredAug 09, 89Jan 08, 91[H02H]
4851946 Lightning arresterExpiredOct 25, 88Jul 25, 89[H02H]

Top Inventors for This Owner

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