Inventor
NAKAYAMA MASATOKI
4 patents
Patents
4 patentsUS3949186AApr 6, 1976
Method for welding between metallic body and precision tube body
NIPPON STEEL CORP60 citations90
US3976514AAug 24, 1976
Method for producing a high toughness and high tensil steel
NIPPON STEEL CORP20 citations78
US3979231ASep 7, 1976
Method for producing large diameter steel pipes
NIPPON STEEL CORP14 citations71
US3973999AAug 10, 1976
Method for producing a high tensile strength and high toughness bend pipe
NIPPON STEEL CORP9 citations69