Inventor · disambiguated record
Ryouichi Shirai
Also filed as: SHIRAI RYOUICHI
2 granted patents·30 citations·filing 1996–1996
61Inventor score
Technology areasY02W
Files withMITSUI MINING & SMELTING CO2
Top patents by PatentIndex Score
2 records- 0160US5789095AMethod of recovering useful materials from spent secondary batteries for electric vehiclesMITSUI MINING & SMELTING CO·Filed 1996·Granted Aug 4, 1998·21 cites·4 claims
- 0240US5795673AMethod of recovering useful materials from spent secondary batteries for electric vehiclesMITSUI MINING & SMELTING CO·Filed 1996·Granted Aug 18, 1998·9 cites·3 claims
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