TERASAKI DENKI SANGYO KABUSHIKI KAISHA

Patent Owner

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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 787
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
H02B BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER 134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6509817 Multipolar circuit breakerOct 30, 01Jan 21, 03[H01H]
6225588 Trip device of circuit breakerSep 07, 99May 01, 01[H01H]
6084191 Circuit breakerJul 29, 99Jul 04, 00[H01H]
6054912 Trip device of circuit breakerAug 10, 99Apr 25, 00[H01H]
6034341 Circuit breakerMar 08, 99Mar 07, 00[H01H]
5837950 Drawer type circuit breaker with drawer contacts biased against contact arcuate portions and external connection terminalsJul 15, 97Nov 17, 98[H02B, H01H]
5751604 Cogeneration systemJan 26, 93May 12, 98[G06F]
5252933 Circuit breaker including forced contact parting mechanism capable of self-retaining under short circuit conditionJul 11, 91Oct 12, 93[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5335140 Drawer-type circuit interrupterExpiredFeb 22, 93Aug 02, 94[H02B]
D342149 Lateral shoe decorationExpiredFeb 25, 93Dec 14, 93[]
5019956 Power control apparatusExpiredNov 14, 89May 28, 91[H02H]
5012053 Contact device for a switchExpiredMar 21, 89Apr 30, 91[H01H]
4853819 Overcurrent tripping unit for a circuit breakerExpiredMay 18, 88Aug 01, 89[H02H]
4611188 Circuit breakerExpiredMar 04, 85Sep 09, 86[H01H]
4388506 Circuit interrupterExpiredNov 23, 81Jun 14, 83[H01H]
4325041 Circuit interrupterExpiredNov 06, 80Apr 13, 82[H01H]
4220822 Time division multiplex transmission systemExpiredMar 12, 79Sep 02, 80[H04J]

Top Inventors for This Owner

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