Inventor

SUGAYOSHI TETSURO

JP2 patents

Patents

2 patents

US5431748AJul 11, 1995

Electric-resistance-welded steel pipe with high strength

NIPPON KOKAN KK3 citations58

US5286309AFeb 15, 1994

Electric-resistance-welded steel pipe with high strength

NIPPON KOKAN KK3 citations58