Inventor · disambiguated record
Isshi Hisaoka
Also filed as: HISAOKA ISSHI
2 granted patents·6 citations·filing 1990–1992
48Inventor score
Files withMITSUI MINING & SMELTING CO2
Top patents by PatentIndex Score
2 records- 0136US5076836AProcess for the preparation of ferromagnetic metallic particles for magnetic recordingMITSUI MINING & SMELTING CO·Filed 1990·Granted Dec 31, 1991·5 cites·18 claims
- 0219US5508017AProcess for the preparation of acicular α-iron oxide hydrateMITSUI MINING & SMELTING CO·Filed 1992·Granted Apr 16, 1996·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →