Inventor · disambiguated record

Manabu Hanzawa

Also filed as: HANZAWA MANABU

1 granted patent·12 citations·filing 1985–1985

34Inventor score

Technology areasB23K

Files withNIPPON STEEL CORP1

Top patents by PatentIndex Score

1 record

0145US4645893AMethod for manufacturing spiral-welded steel pipeNIPPON STEEL CORP·Filed 1985·Granted Feb 24, 1987·12 cites·2 claims

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →