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公开(公告)号：US2144249A
公开(公告)日：1939-01-17
申请号：US785335
申请日：1935-02-23
Applicant: RCA CORP
Inventor： ALLEN VICTOR O
IPC: H01J1/146
CPC classification number: H01J1/146 , Y10S428/935 , Y10T428/12611 , Y10T428/12618 , Y10T428/12667 , Y10T428/12812
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22.发明授权公开(公告)号：US12014894B2
公开(公告)日：2024-06-18
申请号：US18258461
申请日：2021-12-20
Applicant: Denka Company Limited
Inventor： Hiromitsu Chatani
IPC: H01J1/146 , H01J1/16 , H01J37/065
CPC classification number: H01J1/146 , H01J1/16 , H01J37/065 , H01J2237/06308
Abstract: A method for manufacturing an electron source includes steps of sandwiching a welding object in which a tip of an electron emission material and a tungsten filament overlap in direct contact between a pair of welding electrodes, and welding the tip and the tungsten filament by causing a current to flow while pressing forces are applied to the welding object by the pair of welding electrodes. A thickness of the welding object is within a range of 50 to 500 μm.
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23.发明授权公开(公告)号：US11984291B2
公开(公告)日：2024-05-14
申请号：US18258461
申请日：2021-12-20
Applicant: Denka Company Limited
Inventor： Hiromitsu Chatani
IPC: H01J1/146 , H01J1/16 , H01J37/065
CPC classification number: H01J1/146 , H01J1/16 , H01J37/065 , H01J2237/06308
Abstract: A method for manufacturing an electron source includes steps of sandwiching a welding object in which a tip of an electron emission material and a tungsten filament overlap in direct contact between a pair of welding electrodes, and welding the tip and the tungsten filament by causing a current to flow while pressing forces are applied to the welding object by the pair of welding electrodes. A thickness of the welding object is within a range of 50 to 500 μm.
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24.发明申请公开(公告)号：US20160300684A1
公开(公告)日：2016-10-13
申请号：US15093853
申请日：2016-04-08
Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
Inventor： Boris N. Feigelson , James A. Wollmershauser , Kedar Manandhar
CPC classification number: H01J9/042 , B22F1/02 , B22F3/26 , B22F2998/10 , B22F2999/00 , H01J1/142 , H01J1/144 , H01J1/146 , H01J1/28 , B22F3/14 , B22F1/0088 , B22F2201/013 , B22F1/0085 , B22F3/02 , B22F3/11
Abstract: A thermionic dispenser cathode having a refractory metal matrix with scandium and barium compounds in contact with the metal matrix and methods for forming the same. The invention utilizes atomic layer deposition (ALD) to form a nanoscale, uniform, conformal distribution of a scandium compound on tungsten surfaces and further utilizes in situ high pressure consolidation/impregnation to enhance impregnation of a BaO-CaO-Al2O3 based emissive mixture into the scandate-coated tungsten matrix or to sinter a tungsten/scandate/barium composite structure. The result is a tungsten-scandate thermionic cathode having improved emission.
Abstract translation: 具有与金属基体接触的钪和钡化合物的难熔金属基体的热离子分配器阴极及其形成方法。 本发明利用原子层沉积（ALD）在钨表面上形成钪化合物的纳米尺度均匀的共形分布，并进一步利用原位高压固结/浸渍以增强BaO-CaO-Al 2 O 3基发射混合物的浸渍 钪酸盐涂层的钨基体或烧结钨/钪酸盐/钡复合结构。 结果是具有改善的发射的钨 - 钪酸盐热阴极。
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25.发明申请公开(公告)号：US20040244879A1
公开(公告)日：2004-12-09
申请号：US10491793
申请日：2004-04-06
Inventor： Takashi Tanaka , Motohisa Sakai , Yasuhiko Nakano , Kan Suganomata , Motoaki Esaki , Kayo Nakano
IPC: C22C027/04
CPC classification number: H01J1/146 , B21B1/18 , B21B15/0035 , B21B2003/006 , B21B2015/0028 , B21C1/003 , B21C37/045 , B22F5/12 , B22F2998/10 , C22C1/045 , C22C27/04 , H01J1/14 , H01J1/22 , H01J9/04 , H01J9/08 , H01J2201/2889 , H01K1/02 , H01K3/02 , B22F3/10 , B22F3/18 , B22F3/17 , B22F3/20
Abstract: A tungsten wire containing 1 to 10% by mass of rhenium has a point which indicates a 2% elongation within a quadrangle formed by joining points with straight lines, where the values of x and y are point (20, 75), point (20, 87), point (90, 75), and point (90, 58), in this order, wherein the wire diameter of the aforementioned tungsten wire is represented by x nullm, and the elongation of the tungsten wire is 2% after electrically heating with an electrical current which is a ratio of y % to the fusion current (FC) at the wire diameter x nullm, and wherein a semi-logarithmic system of coordinates is expressed by a horizontal axis using a logarithmic scale of the aforementioned wire diameter x and a vertical axis using a normal scale of ratio y to the fusion current. According to the above-described configuration, a tungsten wire having a great elongation even under conditions of high temperature can be provided, and the tungsten wire can exhibit an excellent durability when used as component material for constituting cathode heaters and so forth, and the tungsten wire can be manufactured efficiently.
Abstract translation: 含有1〜10质量％铼的钨丝具有表示在通过连接点与直线形成的四边形内的2％伸长率的点，其中x和y的值为点（20,75），点（20 ，87），点（90,75）和点（90,58），其中上述钨丝的线直径由x mum表示，并且在钨电极之后，钨丝的伸长率为2％ 以线径x mum的y％与熔融电流（FC）的比例的电流进行加热，并且其中使用上述线径的对数标度由水平轴表示坐标的半对数系统 x和垂直轴，使用与融合电流的比率y的正常刻度。 根据上述结构，能够提供即使在高温条件下具有大的伸长率的钨丝，并且当用作构成阴极加热器等的组分材料时，钨丝可以表现出优异的耐久性，钨 电线可以有效地制造。
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Patent Agency Ranking
26.发明授权Cathode material including rare earth metal used as electron emission source for electron beam apparatus 失效阴极材料，包括用作电子束装置的电子发射源的稀土金属公开(公告)号：US06800990B2
公开(公告)日：2004-10-05
申请号：US09756865
申请日：2001-01-10
Applicant: Jong-Seo Choi , Hyek-Bok Lee , Kyu-Nam Joo , Yoon-Chang Kim
Inventor： Jong-Seo Choi , Hyek-Bok Lee , Kyu-Nam Joo , Yoon-Chang Kim
IPC: H01J1906
Abstract: The present invention provides a cathode material for an electron beam device. The cathode material is characterized by the fact that it includes 0.5-9.0% by weight of a rare earth metal of the cerium group, 0.5-15.0% by weight of tungsten or rhenium or both tungsten and rhenium, 0.5-10% by weight of carbon and the remainder of iridium. The cathode material according to the invention has excellent plasticity, can be easily used for manufacturing an emitter of a small size, has high electron emission power, and has a low operation temperature, thereby having a long lifetime, and it is therefore useful for a cathode material for an electron beam device.
Abstract translation: 本发明提供了一种用于电子束装置的阴极材料。 阴极材料的特征在于它包括0.5-9.0重量％的铈基稀土金属，0.5-15.0重量％的钨或铼，钨或铼，0.5-10重量％的钨， 碳和铱的剩余部分。 根据本发明的阴极材料具有优异的可塑性，可以容易地用于制造小尺寸的发射体，具有高的电子发射功率，并且具有低的操作温度，从而具有长的使用寿命，因此可用于 用于电子束装置的阴极材料。
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27.发明授权公开(公告)号：US06791251B2
公开(公告)日：2004-09-14
申请号：US10077762
申请日：2002-02-20
Applicant: Dong-Kyun Seo , Jong-Seo Choi , Kyoung-Cheon Son , Kyu-Nam Joo , Sung-Hwan Moon , Yoon-Chang Kim , Seung-Kwon Han , Bu-Chul Sin
Inventor： Dong-Kyun Seo , Jong-Seo Choi , Kyoung-Cheon Son , Kyu-Nam Joo , Sung-Hwan Moon , Yoon-Chang Kim , Seung-Kwon Han , Bu-Chul Sin
IPC: H01J120
Abstract: A metal cathode for an electron-emission device, and an indirectly heated cathode assembly employing the metal cathode where the metal cathode is formed of a quaternary alloy including 0.1-20% by weight barium (Ba), 0.1-20% by weight a metallic mobilizer facilitating Ba diffusion, a metal with a difference in atomic radius of at least 0.4 Angstrom from the atomic radius of platinum (Pt) or palladium (Pd), the metal being in the range of 0.01 to 30% by weight, and a balance of at least one of Pt and Pd. The metal cathode has a low operating temperature due to its reduced work function with improved current emission capability. The metal cathode can be used for a longer lifetime at high current density. Therefore, the metal cathode can be used effectively in electron-beam devices, such as a Braun tube or picture tube, satisfying larger size, longer life span, high definition, and high luminance requirements of the devices.
Abstract translation: 用于电子发射器件的金属阴极和使用金属阴极的间接加热的阴极组件，其中金属阴极由包含0.1-20重量％的钡（Ba），0.1-20重量％的金属 促进Ba扩散的迁移剂，原子半径不同于铂（Pt）或钯（Pd）的原子半径至少0.4埃的金属，金属在0.01至30重量％的范围内，余量 的Pt和Pd中的至少一种。 金属阴极具有低的工作温度，由于功率降低，电流发射能力得到改善。 金属阴极可以在高电流密度下使用更长的寿命。 因此，金属阴极可以有效地用于诸如布朗管或显像管的电子束器件中，满足更大尺寸，更长寿命，高清晰度和高亮度要求的器件。
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公开(公告)号：US20010009348A1
公开(公告)日：2001-07-26
申请号：US09756865
申请日：2001-01-10
Inventor： Jong-Seo Choi , Hyek-Bok Lee , Kyu-Nam Joo , Yoon-Chang Kim
IPC: H01J001/20
Abstract: The present invention provides a cathode material for an electron beam device. The cathode material is characterized by the fact that it includes 0.5-9.0% by weight of a rare earth metal of the cerium group, 0.5-15.0% by weight of tungsten or rhenium or both tungsten and rhenium, 0.5-10% by weight of carbon and the remainder of iridium. The cathode material according to the invention has excellent plasticity, can be easily used for manufacturing an emitter of a small size, has high electron emission power, and has a low operation temperature, thereby having a long lifetime, and it is therefore useful for a cathode material for an electron beam device.
Abstract translation: 本发明提供了一种用于电子束装置的阴极材料。 阴极材料的特征在于它包括0.5-9.0重量％的铈基稀土金属，0.5-15.0重量％的钨或铼，钨或铼，0.5-10重量％的钨， 碳和铱的剩余部分。 根据本发明的阴极材料具有优异的可塑性，可以容易地用于制造小尺寸的发射体，具有高的电子发射功率，并且具有低的操作温度，从而具有长的使用寿命，因此可用于 用于电子束装置的阴极材料。
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公开(公告)号：US3662210A
公开(公告)日：1972-05-09
申请号：US3662210D
申请日：1970-04-28
Applicant: VIKTOR FEDOROVICH MAXIMOV
Inventor： MAXIMOV VIKTOR FEDOROVICH
CPC classification number: H01J1/146 , H01J23/00 , Y10S428/925 , Y10S428/934 , Y10S428/937 , Y10S428/938 , Y10T428/12778 , Y10T428/12903 , Y10T428/12917 , Y10T428/12986
Abstract: A copper electrode with a multi-layer coating wherein, for example, the outer layer is of tungsten and the inner layer is of iron, the outer layer functioning as a refractory material and the inner layer being a transitional layer having thermal physical properties between those of the electrode and those of the outer layer. Electrode with special coating to protect the same against heat.
Abstract translation: 一种具有多层涂层的铜电极，其中例如外层为钨并且内层为铁，外层起耐火材料的作用，内层为过渡层，其具有热物理性能 的电极和外层的电极。 具有特殊涂层的电极，以保护相同的热量。
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30.发明授权Electronic cathode having a brush-like structure and a relatively thick oxide emissive coating 失效电子阴极具有刷状结构和较厚的氧化物发射涂层
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