Inventor
YOSHIMORI NORIHISA
2 patents
Patents
2 patentsUS4149104AApr 10, 1979
Method of manufacturing a coil heater of an indirectly-heated type cathode electrode of electronic tubes
HITACHI LTD24 citations75
US3953263AApr 27, 1976
Process for preventing the formation of nitrogen monoxide in treatment of metals with nitric acid or mixed acid
HITACHI LTD14 citations67