Inventor · disambiguated record
Naokazu Kumagai
Also filed as: KUMAGAI NAOKAZU
12 granted patents·125 citations·filing 1986–2017
89Inventor score
Files withDAIKI ENGINEERING CO5HITACHI SHIPBUILDING ENG CO3DAIKI ATAKA ENGINEERING CO LTD2HASHIMOTO KOJI2
Top patents by PatentIndex Score
12 records- 0185US4772773AMethods for preparation of overlaid amorphous alloy layersDAIKI ENGINEERING CO·Filed 1986·Granted Sep 20, 1988·45 cites·3 claims
- 0273US4770949ASurface activated amorphous and supersaturated solid solution alloys for electrodes in the electrolysis of solutions and the method for their surface activationDAIKI ENGINEERING CO·Filed 1986·Granted Sep 13, 1988·18 cites·12 claims
- 0372US7811426B2Oxygen evolution electrodeDAIKI ATAKA ENGINEERING CO LTD·Filed 2007·Granted Oct 12, 2010·3 cites·1 claims
- 0471US4964967ASurface activated alloy electrodes and process for preparing themDAIKI ENGINEERING CO·Filed 1990·Granted Oct 23, 1990·35 cites·3 claims
- 0563US9732010B2Catalyst for methanation of carbon oxides, preparation method of the catalyst and process for the methanationHITACHI SHIPBUILDING ENG CO·Filed 2017·Granted Aug 15, 2017·0 cites·3 claims
- 0662US9731278B2Catalyst for methanation of carbon oxides, preparation method of the catalyst and process for the methanationHITACHI SHIPBUILDING ENG CO·Filed 2017·Granted Aug 15, 2017·0 cites·3 claims
- 0758US9617196B2Catalyst for methanation of carbon oxides, preparation method of the catalyst and process for the methanationHASHIMOTO KOJI·Filed 2008·Granted Apr 11, 2017·0 cites·3 claims
- 0856US7914653B2Anode for electrochemical reactionHASHIMOTO KOJI·Filed 2007·Granted Mar 29, 2011·0 cites·2 claims
- 0953US7803260B2Oxygen evolution electrodeDAIKI ATAKA ENGINEERING CO LTD·Filed 2007·Granted Sep 28, 2010·0 cites·2 claims
- 1053US5593556AHighly durable electrodes for electrolysis and a method for preparation thereofDAIKI ENGINEERING CO·Filed 1995·Granted Jan 14, 1997·17 cites·8 claims
- 1144US6056862AProcess and apparatus for supplying metal ions to alloy electroplating bathDAIKI ENGINEERING CO·Filed 1998·Granted May 2, 2000·7 cites·9 claims
- 1243US10343147B2Methanation reaction catalyst, method for producing methanation reaction catalyst and method for producing methaneHITACHI SHIPBUILDING ENG CO·Filed 2015·Granted Jul 9, 2019·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →