Daisuke Okonogi
18Patents
2h-index
30Co-inventors
50Inventor score
Filing activity: Jan 29, 2003 → Dec 29, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7749419B2 | Method and device for injection molding | Performing Operations; Transporting | 4 | Active |
| US9966623B2 | Electrolyte membrane-electrode structure with resin frame for fuel cells | Emerging Cross-Sectional Technologies | 3 | Active |
| US10658683B2 | Method for producing electrolyte membrane electrode assembly for fuel cells | Emerging Cross-Sectional Technologies | 2 | Active |
| US7977003B2 | Fuel cell | Emerging Cross-Sectional Technologies | 2 | Active |
| US7947208B2 | Injection-molding method and apparatus | Performing Operations; Transporting | 2 | Active |
| US6866272B2 | Sealing resin-metal assembly | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7396609B2 | Fuel cell and metal separator for fuel cell | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7553576B2 | Separator for fuel cell | Emerging Cross-Sectional Technologies | 1 | Expired |
| US9225032B2 | Fuel cell | Emerging Cross-Sectional Technologies | 1 | Active |
| US8574780B2 | Fuel cell separator with chromium rich surface layer and method of producing the fuel cell separator | Emerging Cross-Sectional Technologies | 1 | Active |
| US7488550B2 | Fuel cell with a seal member integrally formed on a metal separator | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10720660B2 | Fuel cell stack | Emerging Cross-Sectional Technologies | 0 | Active |
| US8795920B2 | Separator and separator seal for polymer electrolyte fuel cells | Emerging Cross-Sectional Technologies | 0 | Active |
| US7475600B2 | Method of and apparatus for evaluating elastic member quality | Physics | 0 | Active |
| US9160011B2 | Fuel cell separator sealing material and fuel cell separator | Emerging Cross-Sectional Technologies | 0 | Active |
| US8133949B2 | Separator and separator seal for polymer electrolyte fuel cells | Emerging Cross-Sectional Technologies | 0 | Active |
| US8043766B2 | Fuel cell exhibiting enhanced separator sealing structure | Emerging Cross-Sectional Technologies | 0 | Active |
| US8158302B2 | Separator and separator seal for polymer electrolyte fuel cells | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.