Inventor · disambiguated record
Tsutomu Nagahata
Also filed as: NAGAHATA TSUTOMU
4 granted patents·43 citations·filing 1976–1984
76Inventor score
Top patents by PatentIndex Score
4 records- 0174US4632283AMolten metal discharging deviceTOSHIBA CERAMICS CO·Filed 1984·Granted Dec 30, 1986·14 cites·27 claims
- 0270US4583721AMolten metal discharging deviceTOSHIBA CERAMICS CO·Filed 1984·Granted Apr 22, 1986·12 cites·26 claims
- 0352US4325748AMethod for producing steel plate having excellent resistance to hydrogen induced crackingSUMITOMO METAL IND·Filed 1980·Granted Apr 20, 1982·12 cites·5 claims
- 0434US4129439AProcess for refining molten steel using ferroalloySUMITOMO METAL IND·Filed 1976·Granted Dec 12, 1978·5 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Tsutomu Nagahata files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →