Inventor

TAKEHARA JUNICHIRO

JP2 patents

Patents

2 patents

US4464209AAug 7, 1984

Clad steel pipe excellent in corrosion resistance and low-temperature toughness and method for manufacturing same

NIPPON KOKAN KK35 citations88

US4373365AFeb 15, 1983

Up-set shrinker for producing thick wall steel pipe

NIPPON KOKAN KK4 citations58