Inventor
TAKAMOTO MANABU
JP9 patents
Patents
9 patentsUS5604340AFeb 18, 1997
Gas insulated switchgear insertion resistor and main contacts operating mechanism having time delay feature
HITACHI LTD26 citations92
US5734140AMar 31, 1998
Gas insulated high voltage circuit breaker including tulip contact assembly and insertion resistor
HITACHI LTD14 citations71
US5210679AMay 11, 1993
Customer's power receiving and transforming system
HITACHI LTD9 citations71
US6660954B2Dec 9, 2003
Gas-blast circuit-breaker
HITACHI LTD11 citations69
US5450281ASep 12, 1995
Receiving and transforming apparatus
HITACHI LTD15 citations68
US6903295B2Jun 7, 2005
Fluid pressure operating apparatus for circuit breaker
HITACHI LTD3 citations62
US6700471B2Mar 2, 2004
Fixing device of current transformer
HITACHI LTD5 citations56
US5548476AAug 20, 1996
Receiving and transforming apparatus
HITACHI LTD0 citations47
US6252763B1Jun 26, 2001
Gas-insulated electrical apparatus
HITACHI LTD1 citations45