Inventor
TSUKIOKA HIDEO
7 patents
Patents
7 patentsUS4402211ASep 6, 1983
System for monitoring abnormality of oil-filled electric devices
HITACHI LTD56 citations92
US4444040AApr 24, 1984
Method and apparatus for detecting gas components in oil in oil-filled device
HITACHI LTD29 citations89
US4502320AMar 5, 1985
Method and apparatus for diagnosing oil-filled electric apparatus
HITACHI LTD23 citations79
US4470832ASep 11, 1984
Gas chromatographic apparatus
HITACHI LTD20 citations79
US4106557AAug 15, 1978
Open-type boiling cooling apparatus
HITACHI LTD26 citations79
US4129678ADec 12, 1978
Self-bondable insulated wires comprising three coatings including a phenoxy resin outer layer
HITACHI LTD14 citations69
US4436654AMar 13, 1984
Fire-retardant insulating oils
HITACHI LTD5 citations56