Inventor · disambiguated record
Hirohisa Nakashima
Also filed as: NAKASHIMA HIROHISA
8 granted patents·50 citations·filing 1984–1998
85Inventor score
Top patents by PatentIndex Score
8 records- 0176US6316106B1Filler sand for a ladle tap hole valveNIPPON KOKAN KK·Filed 1998·Granted Nov 13, 2001·19 cites·20 claims
- 0263US4551174AMethod of refining molten steel by arc processNIPPON KOKAN KK·Filed 1984·Granted Nov 5, 1985·7 cites·17 claims
- 0352US4552587AMethod of operating ladle refining furnaceNIPPON KOKAN KK·Filed 1984·Granted Nov 12, 1985·5 cites·10 claims
- 0452US4551173AMethod for adjusting composition of molten steel in arc processNIPPON KOKAN KK·Filed 1984·Granted Nov 5, 1985·5 cites·18 claims
- 0543US4652308AProcess for refining molten steelNIPPON KOKAN KK·Filed 1985·Granted Mar 24, 1987·5 cites·9 claims
- 0639US4674101AArc-heating type extra-furnace refining apparatusNIPPON KOKAN KK·Filed 1985·Granted Jun 16, 1987·5 cites·5 claims
- 0732US4652306AMethod of refining molten steel by arc processNIPPON KOKAN KK·Filed 1985·Granted Mar 24, 1987·2 cites·20 claims
- 0828US6051514ASliding nozzle fillerYAMAKAWA SANGYO CO LTD·Filed 1996·Granted Apr 18, 2000·2 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Hirohisa Nakashima 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 →