Inventor
TSUKUSHI MASANORI
JP29 patents
Patents
29 patentsUS5850065ADec 15, 1998
Gas circuit breaker
HITACHI LTD24 citations92
US5567924AOct 22, 1996
Circuit breaker with parallel resistor
HITACHI LTD25 citations92
US5793597AAug 11, 1998
Puffer type gas breaker
HITACHI LTD26 citations91
US5543597AAug 6, 1996
Grounding switch gear device
HITACHI LTD41 citations89
US9058947B2Jun 16, 2015
Puffer-type gas circuit-breaker
HITACHI LTD7 citations83
US5229561AJul 20, 1993
Puffer-type gas circuit breaker
HITACHI LTD9 citations74
US4864286ASep 5, 1989
Switch operation monitoring apparatus
HITACHI LTD13 citations74
US3946184AMar 23, 1976
Circuit breaker
HITACHI LTD9 citations74
US5159164AOct 27, 1992
Gas circuit breaker
HITACHI LTD8 citations73
US5153397AOct 6, 1992
Gas circuit breaker
HITACHI LTD8 citations73
US5079391AJan 7, 1992
Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker
HITACHI LTD8 citations73
US5072084ADec 10, 1991
Gas circuit breaker
HITACHI LTD16 citations73
US4105879AAug 8, 1978
Magnetic puffer type gas circuit breaker
HITACHI LTD8 citations73
US4059741ANov 22, 1977
Puffer type gas circuit breaker
HITACHI LTD10 citations73
US9035729B2May 19, 2015
Gas circuit breaker provided with parallel capacitor
HITACHI LTD6 citations72
US5777842AJul 7, 1998
Transformer station and breaker apparatus
HITACHI LTD11 citations72
US5039831AAug 13, 1991
Circuit breaker
HITACHI LTD16 citations72
US5012051AApr 30, 1991
Three-phase common container-type circuit breaker
HITACHI LTD8 citations72
US5045651ASep 3, 1991
Switch
HITACHI LTD7 citations71
US5079392AJan 7, 1992
Gas circuit breaker
HITACHI LTD17 citations70
US5502290AMar 26, 1996
Switch mechanism
HITACHI LTD5 citations63
US5155312AOct 13, 1992
Puffer type gas circuit interrupter
HITACHI LTD4 citations62
US5151566ASep 29, 1992
Gas circuit breaker
HITACHI LTD5 citations62
US4423298ADec 27, 1983
Gas circuit breaker of resistance breaking type
HITACHI LTD5 citations62
US4211903AJul 8, 1980
Electromagnetic puffer type gas circuit breaker
HITACHI LTD3 citations62
US5274205ADec 28, 1993
Gas blast, puffer type circuit breaker with improved nozzle
HITACHI LTD2 citations61
US4239948ADec 16, 1980
Grounded support tank type gas circuit breaker
HITACHI LTD3 citations61
US8957341B2Feb 17, 2015
Gas circuit breaker
HITACHI LTD2 citations58
US9892875B2Feb 13, 2018
Gas circuit breaker
HITACHI LTD0 citations41