Electron-emitting source having carbon nanotubes

Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C313S310000

Reexamination Certificate

active

07394192

ABSTRACT:
A method of manufacturing an electron-emitting source includes first to third steps. In the first step, a cathode structure made of a metal containing any one of ion, nickel, cobalt, and chromium is heated to a first temperature in a reaction furnace to which a carbon source gas has been introduced, to form a plurality of first carbon nanotubes on the cathode structure by chemical vapor deposition. In the second step, the metal serving as a material of the cathode structure is deposited on at least either one of the cathode structure and the plurality of first carbon nanotubes, to form a catalyst metal layer. In the third step, the cathode structure including the catalyst metal layer is heated to a second temperature higher than the first temperature in the reaction furnace to which the carbon source gas has been introduced, to form a plurality of second carbon nanotubes which are thinner than the first carbon nanotubes on the catalyst metal layer by chemical vapor deposition. An electron-emitting source is also disclosed.

REFERENCES:
patent: 2005/0032255 (2005-02-01), Kitamura et al.
patent: 2005/0275329 (2005-12-01), Hiraki et al.
patent: 2001-048512 (2001-02-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Electron-emitting source having carbon nanotubes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electron-emitting source having carbon nanotubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electron-emitting source having carbon nanotubes will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2772472

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.