Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of making a field emission cold cathode










Image Number 2 for United States Patent #6875462.

A method for making a field emission cold cathode for use in vacuum tubes. A carbon velvet material is coated with a low work function cesiated salt and bonded to a cathode surface. Alternatively, the carbon velvet material is bonded to the cathode surface before being coated with the cesiated salt. The coating may be applied by spraying the carbon velvet material with a cesiated salt solution, or by dipping the material into a crucible of molten cesiated salt. This abstract is provided to comply with the rules requiring an abstract, and is intended to allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning the claims.








 
 
  Recently Added Patents
Data security for dynamic random access memory using body bias to clear data at power-up
UV exposure method for reducing residue in de-taping process
Plants and seeds of hybrid corn variety CH979678
Aperture stop
Interface circuit
MEMS structure and method for making the same
Aisle barrier
  Randomly Featured Patents
High density magnetic recording medium containing hexagonal system ferrite powder
Fiber optical discrete phase modulation system
Controller driver, mobile terminal using the same, and display panel driving method
Reproducing objective for video disks
Station controller for distributed single line PABX
Disposable two-stage air cleaner
Client/server transaction data processing system with automatic distributed coordinator set up into a linear chain for use of linear commit optimization
Machine translation apparatus and non-transitory computer readable medium
Regioselective and stereoselective oxidation of fused ring systems useful for the preparation of aminosterols
Adaptive network to dynamically account for hidden nodes