Hidefumi Hiura
15Patents
7h-index
10Co-inventors
59Inventor score
Filing activity: Jun 2, 1994 → Nov 25, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5698175A | Process for purifying, uncapping and chemically modifying carbon nanotubes | Emerging Cross-Sectional Technologies | 163 | Expired |
| US5641466A | Method of purifying carbon nanotubes | Emerging Cross-Sectional Technologies | 133 | Expired |
| US6083624A | Carbon material and method of preparing the same | Emerging Cross-Sectional Technologies | 72 | Expired |
| US8168964B2 | Semiconductor device using graphene and method of manufacturing the same | Emerging Cross-Sectional Technologies | 39 | Active |
| US5925465A | Carbon material originating from graphite and method of producing same | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5626812A | Method of producing carbon material by bending at least one carbon atom layer of graphite | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6540972B1 | Carbon material and method of preparing the same | Emerging Cross-Sectional Technologies | 13 | Expired |
| US8980217B2 | Method of manufacturing graphene substrate, and graphene substrate | Emerging Cross-Sectional Technologies | 4 | Active |
| US7247548B2 | Doping method and semiconductor device using the same | Electricity | 3 | Expired |
| US7687801B2 | Dopant material, dopant material manufacturing method, and semiconductor device using the same | Electricity | 2 | Active |
| US8698077B2 | Method for determining number of layers of two-dimensional thin film atomic structure and device for determining number of layers of two-dimensional thin film atomic structure | Physics | 2 | Active |
| US8835286B2 | Manufacturing method of graphene substrate and graphene substrate | Electricity | 1 | Active |
| US8093580B2 | Semiconductor device and method of manufacturing the same | Emerging Cross-Sectional Technologies | 0 | Active |
| US7138688B2 | Doping method and semiconductor device fabricated using the method | Electricity | 0 | Expired |
| US6680411B2 | Carborane supercluster and method of producing same | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.