Inventor
NISHIJIMA KAZUO
JP10 patents
⚠️ This page may combine multiple inventors who share the name “NISHIJIMA KAZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
8 patentsUS5963457AOct 5, 1999
Electrical power distribution monitoring system and method
HITACHI LTD224 citations97
US6061609AMay 9, 2000
Electrical power distribution monitoring system and method
HITACHI LTD122 citations96
US5574611ANov 12, 1996
Service interruption minimizing system for power distribution line
HITACHI LTD25 citations92
US5309109AMay 3, 1994
Forcible grounding generation equipment and grounding occurrence detection equipment using the same
HITACHI LTD25 citations92
US5061922AOct 29, 1991
Method of monitoring changes of state of a power transmission system by interruption signal transmission
HITACHI LTD34 citations91
US5579195ANov 26, 1996
Power stoppage minimizing systems for distribution lines and methods of using a distribution line
HITACHI LTD8 citations73
US5295035AMar 15, 1994
Power distribution line protection system
HITACHI LTD12 citations73
US4806929AFeb 21, 1989
Remote monitor control system
HITACHI LTD16 citations71