Inventor

KOMATSUBARA NOBUAKI

JP3 patents

Patents

3 patents

US12371765B2Jul 29, 2025

Seamless steel pipe suitable for use in sour environment

NIPPON STEEL CORP0 citations55

US11905580B2Feb 20, 2024

Seamless steel pipe suitable for use in sour environment

NIPPON STEEL CORP0 citations47

US11891680B2Feb 6, 2024

Steel material suitable for use in sour environment

NIPPON STEEL CORP0 citations47