Thermionic emission cathode having a tip of a single crystal of lanthanum hexaboride
US4055780A · kind A · utility
21Cited by
8References
8Claims
0Family size
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Key dates
| Filing date | Apr 12, 1976 |
| Grant date | Oct 25, 1977 |
| Priority date | — |
| Expiry date | Apr 12, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J1/148
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A single crystal of lanthanum hexaboride is used as a tip of a thermionic emission cathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.