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US 12,437,953 B2Granted
Cathode member for electron beam generation, and method for manufacturing the same
AssigneeKobelco Research Institute, Inc.
InventorsKenji Koga, Toshiaki Takagi, Fumiaki Kudo, Tatsuhiko Kusamichi
Life of this patent
Estimating the term…
Abstract
The cathode member for electron beam generation of the present disclosure includes: 95% by area or more of a single phase or two phases of a compound composed of iridium and cerium. A total content of one or more subcomponents of metallic iridium and an oxide of one or more elements of iridium and cerium is 5% by area or less of the cathode member.
Claims12
A cathode member for electron beam generation, comprising:
- 95% by area or more of a single phase of a compound composed of iridium and cerium,
- wherein a total content of one or more subcomponents of metallic iridium and an oxide of one or more elements of iridium and cerium is 5% by area or less of the cathode member,
- wherein a crystal microstructure of the single phase is solidified in one direction or made of a single crystal, and
- wherein the cathode member does not contain voids.
1 more element
Dependencies are inferred from the claim text.