Inventor
ITAKA KOSHI
JP3 patents
Patents
3 patentsUS5138265AAug 11, 1992
Apparatus and system for locating thunderstruck point and faulty point of transmission line
SUMITOMO ELECTRIC INDUSTRIES42 citations90
US5125738AJun 30, 1992
Apparatus and system for locating a point or a faulty point in a transmission line
SUMITOMO ELECTRIC INDUSTRIES39 citations90
US4496789AJan 29, 1985
Insulating spacer and metal sheath for gas insulated electrical equipment
SUMITOMO ELECTRIC INDUSTRIES7 citations63