Carbon-based composite particle for electron emission device, and method for preparing
US7391144B2 · kind B2 · utility
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7References
22Claims
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Key dates
| Filing date | Apr 8, 2004 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | Sep 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30446
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A carbon-based composite particle for an electron emission source comprises a particle of a material selected from the group consisting of metals, oxides, and ceramic materials; and a carbon-based material such as a carbon nanotube which is partially embedded inside the particle and which partially protrudes from the surface of the particle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.