Inventor · disambiguated record
Etsurou Hirai
Also filed as: HIRAI ETSUROU
3 granted patents·25 citations·filing 1998–2003
68Inventor score
Top patents by PatentIndex Score
3 records- 0153US6956187B2Steel plate splicing facility utilizing shear joiningMITSUBISHI HITACHI METALS·Filed 2003·Granted Oct 18, 2005·3 cites·10 claims
- 0243US6222167B1Impedance matching apparatus for induction heating type galvanized steel sheet alloying system and methodMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Apr 24, 2001·12 cites·8 claims
- 0341US6114675AAlloying system and heating control device for high grade galvanized steel sheetMITSUBISHI HEAVY IND LTD·Filed 1998·Granted Sep 5, 2000·10 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →