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1. 发明授权

US4777031A High temperature process for making fine magnetic particles 失效
标题翻译：制造精细磁性颗粒的高温工艺
公开(公告)号：US4777031A
公开(公告)日：1988-10-11
申请号：US885345
申请日：1986-07-14
申请人： Joseph A. Senecal , Steven R. Reznek , Matthew Neville , Kenneth C. Koehlert , Todd R. Gattuso
发明人： Joseph A. Senecal , Steven R. Reznek , Matthew Neville , Kenneth C. Koehlert , Todd R. Gattuso
IPC分类号： C01G49/06 , C01G49/08 , G11B5/706 , C01G49/02
CPC分类号： C01G49/08 , C01G49/06 , G11B5/70663 , C01P2006/42
摘要： The present invention is a method of producing single, unaggregated magnetic iron oxide particles. An iron or iron and divalent metal halide feed solution is kinetically atomized into a high velocity flame. The feed solution is vaporized and held in a reactor at a temperature and partial pressure of an oxidizing phase sufficient to form either ferrous oxide or magnetite particles. The iron or iron and divalent metal halide vapor reacts with the oxidizing phase vapor and converts to either ferrous oxide vapor or magnetite vapor. Since the vapor phase is beyond equilibrium concentration ferrous oxide or magnetite particles precipitate from the vapor phase. Quenching of the magnetite particles at an enhanced rate to less than 500.degree. C. in a reducing atmosphere renders magnetite and in a oxidizing atmosphere renders maghemite. Quenching of the ferrous oxide particles in a non-oxidizing atmosphere produces magnetite particles.
摘要翻译：本发明是一种生产单一的未聚集的磁性氧化铁颗粒的方法。铁或铁和二价金属卤化物进料溶液被动力雾化成高速火焰。将进料溶液蒸发并在足以形成氧化亚铁或磁铁矿颗粒的氧化阶段的温度和分压下保持在反应器中。铁或铁和二价金属卤化物蒸气与氧化相蒸汽反应并转化成氧化亚铁蒸气或磁铁矿蒸汽。由于气相超过平衡浓度，氧化亚铁或磁铁矿颗粒从气相中沉淀出来。在还原气氛中以增强的速率将磁铁矿颗粒淬火至低于500℃，使磁铁矿在氧化气氛中呈现磁赤铁矿。非氧化性气氛中的氧化亚铁颗粒的淬火产生磁铁矿颗粒。

2. 发明授权

US4765920A High temperature process for producing fine magnetic particles of M-phase structure 失效
标题翻译：用于生产M相结构精细磁性颗粒的高温工艺
公开(公告)号：US4765920A
公开(公告)日：1988-08-23
申请号：US885346
申请日：1986-07-14
申请人： Todd R. Gattuso , Kenneth C. Koehlert , Matthew Neville , Steven R. Reznek , Joseph A. Senecal
发明人： Todd R. Gattuso , Kenneth C. Koehlert , Matthew Neville , Steven R. Reznek , Joseph A. Senecal
IPC分类号： C01G49/00 , C01G51/00 , C01G53/00 , G11B5/706 , C04B35/26 , C01G49/02
CPC分类号： B82Y30/00 , C01G49/0036 , C01G49/009 , C01G51/006 , C01G53/006 , G11B5/70678 , C01P2004/20 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/42
摘要： A method for producing fine magnetic particles having the barium or strotium ferrite M-phase crystal structure. An iron and alkaline earth metal halide feed solution is vaporized to form a precursor and oxidizing vapor phase. The precursor and hydrolyzing or oxidizing vapor phases are held in a reactor at a temperature sufficient to effect vaporization of the feed solution yet which is below the melting point of the desired M-phase crystal structure. Small iron oxide particles precipitate from the vapor phase and alkaline earth oxides thereafter. The alkaline earth oxide particles diffuse into the iron oxide particles to form the desired M-phase structure. When the desired width and thickness of the M-phase crystal platelets is achieved, the M-phase particles are cooled by quenching. Composition of the feed solution may be modified by substituting divalent metal halides for the alkaline earth metal halide or by substituting trivalent halides or a combination of a divalent metal halide and either a penta or quatravalent metal halide for the ferric halide.
摘要翻译：一种具有钡或碲酸铁氧体M相晶体结构的精细磁性颗粒的方法。铁和碱土金属卤化物进料溶液蒸发以形成前体和氧化气相。前体和水解或氧化气相保持在反应器中，其温度足以使进料溶液蒸发，但低于所需M相晶体结构的熔点。此后，小的氧化铁颗粒从气相和碱土氧化物中沉淀出来。碱土金属氧化物颗粒扩散到氧化铁颗粒中以形成所需的M相结构。当达到期望的M相晶体血小板的宽度和厚度时，M相颗粒通过淬火冷却。可以通过用二价金属卤化物代替碱土金属卤化物或用三价卤化物或二价金属卤化物和五价或四价金属卤化物的组合替代卤化铁来改变进料溶液的组成。

3. 发明授权

US06354897B1 Field emission displays and manufacturing methods 失效
标题翻译：场发射显示和制造方法
公开(公告)号：US06354897B1
公开(公告)日：2002-03-12
申请号：US09447070
申请日：1999-11-22
申请人： Alan Palevsky , Todd R. Gattuso , Peter F. Koufopoulos , James M. McGrath
发明人： Alan Palevsky , Todd R. Gattuso , Peter F. Koufopoulos , James M. McGrath
IPC分类号： H01J900
CPC分类号： H01J9/148 , H01J29/467
摘要： A field emission display having a plurality of cathodes; a cathodoluminescent anode; a plurality of control electrodes for controlling the flow of electrons between the cathodes and the anode; a focus grid comprising an apertured, conductive sheet; and a dielectric material is disposed on the focus grid between the conductive sheet and the control electrodes. With such an arrangement, the dielectric material prevents the focus grid from electrically contacting the control electrodes. Further, it has been discovered that high angle electrons emitted by each pixel are inhibited from passing through the focus grid associated with an adjacent pixel to reduce cross-talk. It is believed that surface charge forms on the dielectric material and acts as an additional focusing structure that reduces the number of high angle electrons emitted from one pixel from passing through an adjacent focus grid aperture resulting in a “cross-talk” image on the cathode. In another embodiment, the dielectric layer is disposed between, and in contact with, the focus grid and the cathode structure to provide an integral structure which prevents contact between the surface of the focus grid and the gate electrodes. A method is provided for forming a grid for a field emission display. The method includes the step of spraying a dielectric material towards a surface of the grid while a vacuum draws the spray from the surface through apertures in the grid.
摘要翻译：具有多个阴极的场致发射显示器; 阴极发光阳极; 用于控制阴极和阳极之间的电子流的多个控制电极; 焦点格栅，包括有孔导电片; 并且电介质材料设置在导电片和控制电极之间的焦点栅格上。通过这种布置，电介质材料防止焦点栅格电接触控制电极。此外，已经发现，由每个像素发射的高角度电子被禁止通过与相邻像素相关联的聚焦网格以减少串扰。据信在电介质材料上形成表面电荷并且充当附加的聚焦结构，其减少从一个像素发射的高角度电子数目通过相邻焦点栅格孔径，导致阴极上的“串扰”图像。在另一个实施例中，电介质层设置在焦点栅格和阴极结构之间并与焦点栅极和阴极结构接触，以提供防止聚焦栅格表面与栅电极之间接触的整体结构。提供了一种用于形成用于场发射显示的栅格的方法。该方法包括将电介质材料喷射到格栅的表面的步骤，同时真空通过网格中的孔从表面吸取喷雾。

4. 发明授权

US5350969A Cathode heater and cathode assembly for microwave power tubes 失效
标题翻译：用于微波功率管的阴极加热器和阴极组件
公开(公告)号：US5350969A
公开(公告)日：1994-09-27
申请号：US802076
申请日：1991-12-03
申请人： Todd R. Gattuso
发明人： Todd R. Gattuso
IPC分类号： H01J1/15 , H01J1/22 , H01J1/28 , H01J9/08 , H01J23/04 , H01J29/04
CPC分类号： H01J23/04 , H01J1/22 , H01J9/08 , H01J2201/2878
摘要： A cathode heater includes a patterned conductor embedded within a dielectric substrate. The ceramic substrate has a pair of conductors over the respective surfaces thereof to provide electrical contact for the heater. To assemble the substrates having the conductors, the substrates and printed conductive patterns are fired to provide a composite multi-layer ceramic heater which can be used to heat cathode electrodes in microwave tubes such as travelling wave tubes.
摘要翻译：阴极加热器包括嵌入电介质基板内的图案化导体。陶瓷基板在其相应表面上具有一对导体以提供加热器的电接触。为了组装具有导体的基板，对基板和印刷导电图案进行烧制以提供可用于加热诸如行波管的微波管中的阴极电极的复合多层陶瓷加热器。

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