Inventor · disambiguated record
Hirokazu Katayama
Also filed as: KATAYAMA HIROKAZU
3 granted patents·3 pending applications·11 citations·filing 1980–2022
57Inventor score
Top patents by PatentIndex Score
6 records- 0159US2025108340A1Porous membrane, porous membrane laminate, and method of manufacturing porous membraneSUMITOMO ELECTRIC FINE POLYMER INC·Filed 2022·Application pending·0 cites
- 0254US2023182085A1Porous membrane laminate, filter element and method of manufacturing porous membrane laminateSUMITOMO ELECTRIC FINE POLYMER INC·Filed 2021·Application pending·0 cites
- 0351US10096855B2Redox flow cell membraneSUMITOMO ELECTRIC INDUSTRIES·Filed 2012·Granted Oct 9, 2018·0 cites·4 claims
- 0451US2025135406A1Porous membrane laminateSUMITOMO ELECTRIC FINE POLYMER INC·Filed 2022·Application pending·0 cites
- 0549US12246292B2Micro or nano porous membrane, manufacturing method of same, porous resin membrane complex, and filter elementSUMITOMO ELECTRIC INDUSTRIES·Filed 2019·Granted Mar 11, 2025·0 cites·6 claims
- 0646US4310487AAutomatic analyzer for combustible gas in oilMITSUBISHI ELECTRIC CORP·Filed 1980·Granted Jan 12, 1982·11 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →