Atsushi Ohma
19Patents
2h-index
37Co-inventors
54Inventor score
Filing activity: Jun 26, 2000 → Feb 8, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6572994B1 | Polymer electrolyte fuel cell system | Emerging Cross-Sectional Technologies | 7 | Expired |
| US10135074B2 | Carbon powder for catalyst, catalyst, electrode catalyst layer, membrane electrode assembly, and fuel cell using the carbon powder | Emerging Cross-Sectional Technologies | 4 | Active |
| US7901836B2 | Polymer electrolyte fuel cell | Emerging Cross-Sectional Technologies | 2 | Active |
| US9755243B2 | Electrode catalyst layer for fuel cells, electrode for fuel cells, membrane electrode assembly for fuel cells, and fuel cell | Emerging Cross-Sectional Technologies | 2 | Active |
| US10675611B2 | Carbon powder for fuel cell and catalyst, electrode catalyst layer, membrane electrode assembly, and fuel cell using the carbon powder for fuel cell | Emerging Cross-Sectional Technologies | 2 | Active |
| US8026018B2 | Electrolyte membrane-electrode assembly and production method thereof | Emerging Cross-Sectional Technologies | 2 | Active |
| US9029045B2 | Gas diffusion electrode and production method for same; membrane electrode assembly and production method for same | Emerging Cross-Sectional Technologies | 1 | Active |
| US9947934B2 | Catalyst and electrode catalyst layer, membrane electrode assembly, and fuel cell using the catalyst | Emerging Cross-Sectional Technologies | 1 | Active |
| US9847532B2 | Fuel cell electrode catalyst layer, fuel cell electrode, fuel cell membrane electrode assembly and fuel cell having a proton-conductive material coated on a catalyst thereof | Emerging Cross-Sectional Technologies | 0 | Active |
| US9799903B2 | Electrocatalyst for solid polymer fuel cell | Emerging Cross-Sectional Technologies | 0 | Active |
| US10535881B2 | Catalyst and electrode catalyst layer, membrane electrode assembly, and fuel cell using the catalyst | Emerging Cross-Sectional Technologies | 0 | Active |
| US11715827B2 | Anode interlayer for lithium batteries | Emerging Cross-Sectional Technologies | 0 | Active |
| US10320020B2 | Electrode catalyst for fuel cell, electrode catalyst layer for fuel cell, method for producing the same, and membrane electrode assembly and fuel cell using the catalyst layer | Emerging Cross-Sectional Technologies | 0 | Active |
| US10411268B2 | Electrode catalyst, method for producing the same, and electrode catalyst layer using electrode catalyst | Emerging Cross-Sectional Technologies | 0 | Active |
| US10547075B2 | Electrode catalyst layer for fuel cell | Emerging Cross-Sectional Technologies | 0 | Active |
| US11031604B2 | Catalyst and electrode catalyst layer, membrane electrode assembly, and fuel cell using the catalyst | Emerging Cross-Sectional Technologies | 0 | Active |
| US10573901B2 | Catalyst and manufacturing method thereof, and electrode catalyst layer using the catalyst | Emerging Cross-Sectional Technologies | 0 | Active |
| US8329359B2 | Polymer electrolyte fuel cell | Emerging Cross-Sectional Technologies | 0 | Active |
| US10367218B2 | Electrode catalyst layer for fuel cell, method for producing the same, and membrane electrode assembly and fuel cell using the catalyst layer | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.