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1.发明授权Multi-electrode field emission device having single power source and method of driving same 有权具有单个电源的多电极场发射装置及其驱动方法公开(公告)号：US09351350B2
公开(公告)日：2016-05-24
申请号：US14283755
申请日：2014-05-21
Inventor： Jin-Woo Jeong , Yoon-Ho Song , Jae-Woo Kim , Jun-Tae Kang
Abstract: A field emission device and a method of driving the multi-electrode field emission device having a single driving power source are disclosed. The field emission device includes a cathode electrode, one or more gate electrodes, a voltage division unit, and a power source unit. The cathode electrode is figured such that at least one emitter is formed thereon. The gate electrodes are disposed between an anode electrode and the cathode electrode, and each have one or more openings through which electrons emitted from the emitter can pass. The voltage division unit has one or more divider resistors, and divides a voltage applied from the power source unit using the divider resistors and then applies partial voltages to the one or more gate electrodes. The power source unit includes a single power source, and applies the voltage to the voltage division unit.
Abstract translation: 公开了一种场发射器件和驱动具有单个驱动电源的多电极场致发射器件的方法。 场致发射器件包括阴极电极，一个或多个栅电极，分压单元和电源单元。 阴极被设计成使得至少一个发射极形成在其上。 栅电极设置在阳极电极和阴极电极之间，并且各自具有一个或多个开口，通过该开口从发射体发射的电子可以通过。 分压单元具有一个或多个分压电阻器，并且使用分压电阻器分压从电源单元施加的电压，然后将一部分电压施加到一个或多个栅电极。 电源单元包括单个电源，并将电压施加到分压单元。
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Patent Agency Ranking
公开(公告)号：US11538651B2
公开(公告)日：2022-12-27
申请号：US17562801
申请日：2021-12-27
Inventor： Ki Nam Yun , Yoon-Ho Song , Jun-Tae Kang , Jeong-Woong Lee , Jin-Woo Jeong
Abstract: Provided is a method for manufacturing an electric field emission device. The method for manufacturing the electric field emission device includes winding a carbon nanotube yarn around outer circumferential surfaces of a metal plate in a first direction, pressing both side surfaces of the metal plate through a pair of metal structures, wherein a top surface of the metal plate is exposed from the metal structures, and an area of the top surface of the metal plate is less than that of each of both the side surfaces of the metal plate, and cutting the carbon nanotube yarn at an edge portion of the top surface of the metal plate in the first direction to form a plurality of emitters.
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公开(公告)号：US12125661B2
公开(公告)日：2024-10-22
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
CPC classification number: H01J35/064 , H01J35/045 , H01J35/10
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.
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公开(公告)号：US11894224B2
公开(公告)日：2024-02-06
申请号：US17834463
申请日：2022-06-07
Inventor： Yoon-Ho Song , Jeong-Woong Lee , Jun-Tae Kang , Seong Jun Kim , Jae-Woo Kim , Sora Park , Ki Nam Yun , Jin-Woo Jeong , Sunghoon Choi
IPC: H01J5/04
CPC classification number: H01J5/04
Abstract: Provided is a high voltage driving device including a housing and a cathode, an anode, and an insulation structure, which are disposed in the housing. Here, the cathode and the anode are spaced apart from each other with the insulation structure therebetween. Also, the insulation structure includes a first solid insulator disposed adjacent to the cathode and a second solid insulator disposed adjacent to the anode. Also, the first solid insulator has first volumetric resistivity less than second volumetric resistivity of the second solid insulator, and the first solid insulator contacts the cathode.
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公开(公告)号：US11791123B2
公开(公告)日：2023-10-17
申请号：US17712639
申请日：2022-04-04
Inventor： Yoon-Ho Song , Jun-Tae Kang , Jae-Woo Kim , Jin-Woo Jeong
CPC classification number: H01J35/16 , H01J35/045 , H01J35/064
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.
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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.
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