Inventor · disambiguated record
Kazuhiro Sumioka
Also filed as: SUMIOKA KAZUHIRO
15 granted patents·5 pending applications·20 citations·filing 2001–2022
88Inventor score
Files withMITSUBISHI RAYON CO6SUMIOKA KAZUHIRO6MITSUBISHI CHEM CORP4SEMICONDUCTOR ENERGY LAB3TATSUNO HIROTO1
Top patents by PatentIndex Score
20 records- 0185US9825304B2Porous electrode substrate, method for manufacturing same, precursor sheet, membrane electrode assembly, and polymer electrolyte fuel cellMITSUBISHI RAYON CO·Filed 2016·Granted Nov 21, 2017·2 cites·9 claims
- 0283US8927173B2Porous electrode substrate, method for producing the same, membrane electrode assembly, and polymer electrolyte fuel cellMITSUBISHI RAYON CO·Filed 2013·Granted Jan 6, 2015·3 cites·20 claims
- 0375US11777109B2Hydrophilic porous carbon electrode and manufacturing method of sameMITSUBISHI CHEM CORP·Filed 2022·Granted Oct 3, 2023·0 cites·17 claims
- 0475US7768193B2Display device incorporating an electrode protection layer exposing the electrode element to an atmosphereSEMICONDUCTOR ENERGY LAB·Filed 2008·Granted Aug 3, 2010·3 cites·20 claims
- 0570US8574758B2Porous electrode substrate and method for producing the sameSUMIOKA KAZUHIRO·Filed 2010·Granted Nov 5, 2013·1 cites·23 claims
- 0669US6866555B2Display element and method of manufacturing the sameSEMICONDUCTOR ENERGY LAB·Filed 2001·Granted Mar 15, 2005·11 cites·30 claims
- 0768US11437629B2Hydrophilic porous carbon electrode and manufacturing method of sameMITSUBISHI CHEM CORP·Filed 2020·Granted Sep 6, 2022·0 cites·17 claims
- 0855US9780383B2Porous electrode substrate and process for production thereof, porous electrode substrate precursor sheet, membrane-electrode assembly, and polymer electrolyte fuel cellMITSUBISHI CHEM CORP·Filed 2015·Granted Oct 3, 2017·0 cites·20 claims
- 0955US9325016B2Porous electrode substrate and process for production thereof, porous electrode substrate precursor sheet, membrane-electrode assembly, and polymer electrolyte fuel cellSUMIOKA KAZUHIRO·Filed 2011·Granted Apr 26, 2016·0 cites·13 claims
- 1053US9786923B2Porous electrode substrate, method for manufacturing same, membrane electrode assembly, polymer electrolyte fuel cell, precursor sheet, and fibrillar fibersMITSUBISHI RAYON CO·Filed 2016·Granted Oct 10, 2017·0 cites·9 claims
- 1151US9705137B2Porous electrode substrate, method for manufacturing same, precursor sheet, membrane electrode assembly, and polymer electrolyte fuel cellTATSUNO HIROTO·Filed 2012·Granted Jul 11, 2017·0 cites·16 claims
- 1251US8986907B2Porous electrode substrate, method for producing the same, membrane electrode assembly, and polymer electrolyte fuel cellSUMIOKA KAZUHIRO·Filed 2010·Granted Mar 24, 2015·0 cites·7 claims
- 1351US2016087283A1Porous electrode substrate, method for manufacturing same, and polymer electrolyte fuel cellMITSUBISHI RAYON CO·Filed 2014·Application pending·0 cites
- 1449US9871257B2Porous electrode substrate, method for manufacturing same, membrane electrode assembly, polymer electrolyte fuel cell, precursor sheet, and fibrillar fibersSUMIOKA KAZUHIRO·Filed 2012·Granted Jan 16, 2018·0 cites·14 claims
- 1548US2015155568A1Porous electrode substrate, method for manufacturing same, membrane-electrode assembly, and solid polymer fuel cellMITSUBISHI RAYON CO·Filed 2013·Application pending·0 cites
- 1647US7414364B2Display element and method of manufacturing the sameSEMICONDUCTOR ENERGY LAB·Filed 2004·Granted Aug 19, 2008·0 cites·18 claims
- 1747US2008038589A1Porous Electrode Base Material and Production Method ThereofMITSUBISHI RAYON CO·Filed 2005·Application pending·0 cites
- 1845US9343751B2Porous electrode substrate, method for producing the same, precursor sheet, membrane electrode assembly, and polymer electrolyte fuel cellSUMIOKA KAZUHIRO·Filed 2010·Granted May 17, 2016·0 cites·20 claims
- 1942US2019148739A1Porous base material, porous electrode, carbon fiber paper, method for manufacturing carbon fiber paper, and method for manufacturing porous base materialMITSUBISHI CHEM CORP·Filed 2019·Application pending·0 cites
- 2040US2012115063A1Porous electrode substrate and method for producing the sameSUMIOKA KAZUHIRO·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →