Inventor
OHNO MASATOMO
JP8 patents
⚠️ This page may combine multiple inventors who share the name “OHNO MASATOMO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
7 patentsUS5604340AFeb 18, 1997
Gas insulated switchgear insertion resistor and main contacts operating mechanism having time delay feature
HITACHI LTD26 citations92
US5543597AAug 6, 1996
Grounding switch gear device
HITACHI LTD41 citations89
US5638254AJun 10, 1997
Gas insulated switch gear device
HITACHI LTD24 citations87
US5734140AMar 31, 1998
Gas insulated high voltage circuit breaker including tulip contact assembly and insertion resistor
HITACHI LTD14 citations71
US5243160ASep 7, 1993
Operating mechanism for an inert gas filled circuit breaker
HITACHI LTD5 citations58
US5206470AApr 27, 1993
Operating device for gas circuit breaker
HITACHI LTD4 citations58
US5818004AOct 6, 1998
Gas-insulated transmission line having reserve circuit for recovering insulting gas
HITACHI LTD2 citations56