Inventor · disambiguated record
Keiji Kudo
Also filed as: KUDO KEIJI
17 granted patents·1 pending application·49 citations·filing 2002–2017
90Inventor score
Files withSUMITOMO METAL MINING CO10KOBAYASHI HIROSHI3HITACHI CONSTRUCTION MACH CO1ISHIDA HITOSHI1IWATA YOSHIHARU1
Top patents by PatentIndex Score
18 records- 0191US9550414B2Traveling drive device for dump truckHITACHI CONSTRUCTION MACH CO·Filed 2013·Granted Jan 24, 2017·20 cites·3 claims
- 0288US9068242B2Valuable metal leaching method, and valuable metal collection method employing the leaching methodISHIDA HITOSHI·Filed 2012·Granted Jun 30, 2015·9 cites·7 claims
- 0384US8580213B2Method for recovering nickel from sulfuric acid aqueous solutionKOBAYASHI HIROSHI·Filed 2010·Granted Nov 12, 2013·4 cites·10 claims
- 0482US10081851B2Method for recovering high-purity scandiumSUMITOMO METAL MINING CO·Filed 2015·Granted Sep 25, 2018·2 cites·19 claims
- 0581US9963762B2Scandium recovery methodSUMITOMO METAL MINING CO·Filed 2015·Granted May 8, 2018·2 cites·10 claims
- 0679US9347115B2Method for recovering rare earth elementSUMITOMO METAL MINING CO·Filed 2012·Granted May 24, 2016·2 cites·12 claims
- 0772US9023130B2Method for separating positive-pole active substance and method for recovering valuable metals from lithium ion batteryKUDO KEIJI·Filed 2011·Granted May 5, 2015·2 cites·7 claims
- 0871US7422621B2Method for concentrating precious metals contained in leaching residue discharged from copper hydrometallurgical processSUMITOMO METAL MINING CO·Filed 2004·Granted Sep 9, 2008·7 cites·11 claims
- 0969US9567239B2Method for producing high-purity nickel sulfate and method for removing impurity element from solution containing nickelSUMITOMO METAL MINING CO·Filed 2014·Granted Feb 14, 2017·1 cites·6 claims
- 1049US10570480B2Method for recovering scandiumSUMITOMO METAL MINING CO·Filed 2015·Granted Feb 25, 2020·0 cites·20 claims
- 1146US9751783B2Method for a treatment for wastewater containing aluminum, magnesium, and manganeseKOBAYASHI HIROSHI·Filed 2011·Granted Sep 5, 2017·0 cites·9 claims
- 1244US11214849B2Method for recovering scandiumSUMITOMO METAL MINING CO·Filed 2017·Granted Jan 4, 2022·0 cites·15 claims
- 1344US10227675B2Wet smelting method for nickel oxide oreSUMITOMO METAL MINING CO·Filed 2015·Granted Mar 12, 2019·0 cites·1 claims
- 1444US7449160B2Process of solvent extraction of copperSUMITOMO METAL MINING CO·Filed 2004·Granted Nov 11, 2008·0 cites·8 claims
- 1542US9657370B2Removal method of manganese from waste waterKOBAYASHI HIROSHI·Filed 2010·Granted May 23, 2017·0 cites·8 claims
- 1641US7138005B2Nickel refining methodSUMITOMO METAL MINING CO·Filed 2002·Granted Nov 21, 2006·0 cites·9 claims
- 1739US2004144208A1Process for refining raw copper material containing copper sulfide mineralFiled 2003·Application pending·0 cites
- 1832US8655630B2Apparatus, system, and method for construction of a design workflowIWATA YOSHIHARU·Filed 2010·Granted Feb 18, 2014·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →