Inventor

UME KAZUYOSHI

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

US5397654AMar 14, 1995

Abrasion-resistant welded steel pipe

NIPPON KOKAN KK5 citations59