Electron-emitting device, electron source using the same, and image forming apparatus using the same
US6876156B1 · kind B1 · utility
9Cited by
15References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2000 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Feb 25, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/3165
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electron-emitting device having a pair of electric conductors disposed on a substrate in opposed relationship with each other, and a pair of piled films composed chiefly of carbon and connected to the pair of electric conductors and disposed with a gap interposed therebetween, the piled films contain therein one or more kinds of elements selected from the group of lithium, potassium, sodium, calcium, strontium and barium within the range of 1 mol % to 5 mol % in terms of the percentage to carbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.