US 12,444,565 B2
Method of manufacturing a filament, filament manufactured thereby, and x-ray tube having the filament
Re Na Lee, Seoul (KR); Sung Ho Cho, Seoul (KR); and Byoung Tae Jang, Bucheon-si (KR)
Assigned to REMEDI CO., LTD, (KR)
Appl. No. 17/925,606
Filed by REMEDI CO., LTD, Chuncheon-si (KR)
PCT Filed Nov. 3, 2022, PCT No. PCT/KR2022/017148
§ 371(c)(1), (2) Date Nov. 15, 2022,
PCT Pub. No. WO2024/048843, PCT Pub. Date Mar. 7, 2024.
Claims priority of application No. 10-2022-0108486 (KR), filed on Aug. 29, 2022.
Prior Publication US 2024/0234070 A1, Jul. 11, 2024
Int. Cl. H01J 9/02 (2006.01); H01J 35/08 (2006.01)
CPC H01J 9/02 (2013.01) [H01J 35/112 (2019.05)] 5 Claims
OG exemplary drawing
 
1. An X-ray tube comprising:
a filament configured to emit electrons by the supply of power;
a target configured to receive the electrons from the filament and emit X-rays;
a body configured to seal the filament and the target while facing each other; and
a cap configured to emit heat in close contact with the target,
wherein the filament includes:
a plate-shaped base made of a ceramic material;
two electrodes made of a metal material, each passing through and bonded to the base, wherein upper portions of the two electrodes are bent to face each other;
a wire connected to the bent upper portions of the two electrodes; and
a plate-shaped disc connected to the wire,
wherein the base is larger in size and thicker than the disk, and each of the electrodes has a greater width than the wire.