-
公开(公告)号：US20220351929A1
公开(公告)日：2022-11-03
申请号：US17712639
申请日：2022-04-04
Inventor： Yoon-Ho SONG , Jun-Tae KANG , Jae-Woo KIM , Jin-Woo JEONG
Abstract: Provided is an X-ray tube which includes a first electrode, a second electrode spaced apart from the first electrode, a target disposed in a lower portion of the second electrode, an emitter on the first electrode, a third electrode which is positioned between the first electrode and the second electrode and includes an opening at a position perpendicularly corresponding to the emitter, and a spacer provided on the third electrode and surrounding the second electrode. The spacer includes a first section located adjacent to the third electrode and a second section disposed on the first section. The spacer includes a ceramic insulator and conductive dopants dispersed within the ceramic insulator. A concentration of the conductive dopants in the first section of the spacer is greater than a concentration of the conductive dopants in the second section. The third electrode is in contact with the first section of the spacer.
-
公开(公告)号：US20210166909A1
公开(公告)日：2021-06-03
申请号：US17108634
申请日：2020-12-01
Inventor： Yoon-Ho SONG , Jun-Tae KANG , Jin-Woo JEONG , Jae-Woo KIM
Abstract: Provided is an X-ray tube. The X-ray tube includes a cathode electrode, an anode electrode vertically spaced apart from the cathode electrode, an emitter on the cathode electrode, a gate electrode disposed between the cathode electrode and the anode electrode, the gate electrode including an opening at a position corresponding to the emitter, and a spacer provided between the gate electrode and the anode electrode. The spacer includes an insulator and conductive dopants doped in the insulator.
-
公开(公告)号：US20190080876A1
公开(公告)日：2019-03-14
申请号：US16123374
申请日：2018-09-06
Inventor： Jin-Woo JEONG , Yoon-Ho SONG
CPC classification number: H01J35/14 , H01J35/065 , H01J35/08 , H01J35/147 , H05G1/02 , H05G1/265 , H05G1/32 , H05G1/52
Abstract: Provided is an X-ray imaging device and a driving method thereof, the X-ray imaging device including an electron beam generation unit including a plurality of nano-emitters and a cathode, a first focusing electrode configured to focus an electron beam emitted from the electron beam generation unit, a deflector configured to deflect the electron beam focused by the first focusing electrode, a limited electrode configured to limit traveling of the electron beam deflected by the deflector, and an anode configured to be irradiated with the electron beam to emit an X-ray, wherein the limited electrode includes a limited aperture which the electron beam pass.
-
公开(公告)号：US20180158640A1
公开(公告)日：2018-06-07
申请号：US15835073
申请日：2017-12-07
Inventor： Young Chul CHOI , Yoon-Ho SONG , Hyo Jin JEON , Jun Tae KANG , Sora PARK , Jeong Woong LEE , Eunsol GO , Min-Sik SHIN , Jae-Woo KIM , Jin-Woo JEONG , Ji-Hwan YEON , Sunghee KIM
Abstract: Disclosed is a field emission apparatus. The apparatus comprises a cathode electrode and an anode electrode spaced apart from each other, an emitter on the cathode electrode, a gate electrode between the cathode and anode electrodes and including at least one gate aperture overlapping the emitter, and an electron transmissive sheet on the gate electrode and including a plurality of fine openings overlapping the gate aperture.
-
15.发明申请METHOD FOR DRIVING MULTI ELECTRIC FIELD EMISSION DEVICES AND MULTI ELECTRIC FIELD EMISSION SYSTEM 有权用于驱动多电场发射装置和多电场发射系统的方法公开(公告)号：US20150216025A1
公开(公告)日：2015-07-30
申请号：US14335839
申请日：2014-07-18
Inventor： Jin Woo JEONG , Yoon-Ho SONG , Jun Tae KANG , Sungyoul CHOI , Jae-woo KIM
CPC classification number: H01J29/98 , H01J35/065 , H01J2235/068 , H05G1/70
Abstract: Provided is a method of driving multi electrical field emission devices. The method includes: respectively connecting first current control circuit devices for current path formation to a plurality of electric field emission devices; commonly connecting a second current control circuit device to the first current control circuit devices to commonly control the first current control circuit devices; and driving the first current control circuit devices at different timings when the second current control circuit device is driven.
Abstract translation: 提供了驱动多电场发射装置的方法。 该方法包括：将用于当前路径形成的第一电流控制电路装置分别连接到多个电场发射装置; 通常将第二电流控制电路装置连接到第一电流控制电路装置以共同控制第一电流控制电路装置; 以及当所述第二电流控制电路装置被驱动时以不同的定时驱动所述第一电流控制电路装置。
-
Patent Agency Ranking
16.发明申请公开(公告)号：US20140369460A1
公开(公告)日：2014-12-18
申请号：US14050548
申请日：2013-10-10
Inventor： Jin Woo JEONG , Yoon-Ho SONG , Sungyoul CHOI , Jun Tae KANG , Jae-woo KIM
CPC classification number: G01N23/046 , G01N2223/6116 , H01J35/14 , H01J35/30
Abstract: A method and apparatus for generating X-rays that can acquire an X-ray image of a subject at a high speed are provided. When a CT system checks a subject, the CT system can acquire an X-ray image of the subject through rotating X-rays that are emitted from the X-ray generating apparatus and thus anX-ray image of the subject can be obtained in various angles. Further, because it is unnecessary for the X-ray generating apparatus or the subject to move relative to each other, an X-ray image can be acquired at a high speed and thus a subject can be rapidly checked.
Abstract translation: 提供一种用于产生可以高速获取被摄体的X射线图像的X射线的方法和装置。 当CT系统检查对象时，CT系统可以通过从X射线产生装置发射的X射线旋转获得被摄体的X射线图像，从而可以获得被摄体的X射线图像 各种角度 此外，由于X射线产生装置或被摄体不必相对于彼此移动，因此可以高速获取X射线图像，因此可以快速检查对象。
-
公开(公告)号：US20130336461A1
公开(公告)日：2013-12-19
申请号：US13762274
申请日：2013-02-07
Inventor： Jin Woo JEONG , Yoon-Ho SONG , Sungyoul CHOI , Jun Tae KANG , Jae-woo KIM
IPC: H01J35/14
CPC classification number: H01J35/14
Abstract: An X-ray tube is provided. The X-ray tube includes a cathode electrode which is disposed in one end of a vacuum container and includes an emitter emitting an electron; a gate electrode which is disposed in the vacuum container to be adjacent to the cathode electrode; an anode electrode which is disposed in the vacuum container of the other end of a direction in which the vacuum container extends and inclines with respect to the cathode electrode; and a focusing electrode which is disposed in the vacuum container along an inner circumference surface of the vacuum container between the gate electrode and the anode electrode. The focusing electrode has an opening of which a plan cross section has a maximum width and a minimum width different from each other.
Abstract translation: 提供X射线管。 X射线管包括设置在真空容器的一端并包括发射电子的发射体的阴极电极; 设置在真空容器内以与阴极相邻的栅电极; 阳极，其设置在所述真空容器中，所述真空容器的所述真空容器相对于所述阴极电极延伸并倾斜的方向的另一端; 以及聚焦电极，其在栅极电极和阳极电极之间沿着真空容器的内周面设置在真空容器中。 聚焦电极具有平面截面具有彼此不同的最大宽度和最小宽度的开口。
-
公开(公告)号：US20230036147A1
公开(公告)日：2023-02-02
申请号：US17872782
申请日：2022-07-25
Inventor： Yoon-Ho SONG , Jun-Tae Kang , Jae-Woo Kim , Sora Park , Jin-Woo Jeong
Abstract: Provided is an X-ray tube including a cathode structure, an anode spaced apart from the cathode structure, a spacer structure disposed between the cathode structure and the anode, and an external power supply connected to each of the cathode structure, the anode, and the spacer structure. Here, the spacer structure includes a first spacer disposed adjacent to the cathode structure and a second spacer disposed on the first spacer and disposed adjacent to the anode. The first spacer includes a first portion adjacent to the cathode structure and a second portion adjacent to a contact point of the first spacer and the second spacer. The second spacer includes a third portion adjacent to the contact point and a fourth portion adjacent to the anode. Each of the first portion and the third portion has a volume resistivity less than that of the second portion.
-
公开(公告)号：US20210305002A1
公开(公告)日：2021-09-30
申请号：US17201629
申请日：2021-03-15
Inventor： Jae-Woo KIM , Yoon-Ho SONG , Eun Sol KO
Abstract: Provided is a field emission device including a cathode electrode and an anode electrode, which are spaced apart from each other, an emitter disposed on the cathode electrode, a gate electrode disposed between the cathode electrode and the anode electrode and including a gate opening that overlaps the emitter, and a plurality of alignment electrodes disposed between the gate electrode and the cathode electrode. Here, the alignment electrodes surround a side surface of the emitter.
-
公开(公告)号：US20190304731A1
公开(公告)日：2019-10-03
申请号：US16430249
申请日：2019-06-03
Inventor： Jin-Woo JEONG , Yoon-Ho SONG
Abstract: Provided is an electron emission source including a substrate, a fixed structure provided on the substrate, and an electron emission yarn provided between the substrate and the fixed structure. The fixed structure includes a first portion having a first width and a second portion having a second width greater than the first width, and the electron emission yarn extends on a first sidewall of the first portion of the fixed structure from between the fixed structure and the substrate.
-
-
-
-
-
-
-
-
-
Search Results
34
records
(took 0.016 seconds)
