Thermionic cathode with even electric field distribution on electron emitting surface
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 29, 2016
Grant Date -
May 22, 2014
app pub date -
Oct 7, 2013
filing date -
Nov 19, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A thermionic cathode of an embodiment includes a carbon coating applied to an outer surface of the side, the carbon coating comprising a contiguous extended portion surrounding the upper section and spaced apart from said upper section by a gap having 1 μm or more and 10 μm or less in width and having a difference of 1 μm or less in the width between a maximum value and a minimum value in a periphery of the electron emitting surface.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully