Inventor · disambiguated record
Joo Ishihara
Also filed as: ISHIHARA JOO · TOMITA SADAMI
4 granted patents·63 citations·filing 1979–1985
77Inventor score
Files withHITACHI LTD4
Top patents by PatentIndex Score
4 records- 0193US4301855AApparatus for producing metal ribbonHITACHI LTD·Filed 1979·Granted Nov 24, 1981·35 cites·12 claims
- 0280US4697320ARoll for a rolling mill, method of producing the same and the rolling mill incorporating the rollHITACHI LTD·Filed 1984·Granted Oct 6, 1987·17 cites·20 claims
- 0341US4668591AMagnetic separator matrix of cut pieces of an elongated crystalline magnetic alloyHITACHI LTD·Filed 1985·Granted May 26, 1987·8 cites·3 claims
- 0433US4560404AMethod of producing material for superconductorHITACHI LTD·Filed 1984·Granted Dec 24, 1985·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →