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公开(公告)号：US11593938B2
公开(公告)日：2023-02-28
申请号：US17452999
申请日：2021-10-31
Applicant: Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
Inventor： Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
Abstract: A rapid and automatic virus imaging and analysis system includes (i) electron optical sub-systems (EOSs), each of which has a large field of view (FOV) and is capable of instant magnification switching for rapidly scanning a virus sample; (ii) sample management sub-systems (SMSs), each of which automatically loads virus samples into one of the EOSs for virus sample scanning and then unloads the virus samples from the EOS after the virus sample scanning is completed; (iii) virus detection and classification sub-systems (VDCSs), each of which automatically detects and classifies a virus based on images from the EOS virus sample scanning; and (iv) a cloud-based collaboration sub-system for analyzing the virus sample scanning images, storing images from the EOS virus sample scanning, and storing and analyzing machine data associated with the EOSs, the SMSs, and the VDCSs.
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公开(公告)号：US11569059B2
公开(公告)日：2023-01-31
申请号：US17644789
申请日：2021-12-17
Applicant: Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
Inventor： Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
IPC: H01J37/26 , B08B7/00 , H01J37/244
Abstract: The present invention provides an apparatus of charged-particle beam e.g. an electron microscope comprising an in-column plasma generator for selectively cleaning BSE detector and BF/DF detector. The plasma generator is located between a lower pole piece of objective lens and the BF/DF detectors, but outside trajectory area of the charged-particles from the sample stage to the BF/DF detector.
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公开(公告)号：US11355312B2
公开(公告)日：2022-06-07
申请号：US17444192
申请日：2021-08-01
Applicant: Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
Inventor： Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
IPC: H01J37/28 , H01J37/20 , H01J37/317 , H01J37/141
Abstract: The present invention provides a driving system comprising two actuators for moving a stage through two elastic connectors; and a general apparatus/device comprising such a driving system, such as a machine tool, an analytical instrument, an optical microscope, and an apparatus of charged-particle beam such as electron microscope and an electron beam lithographical apparatus. When used in an electron microscope, the stage can be used as a specimen stage or a plate having apertures for electron beam to pass through. The novel stage driving system exhibits numerous technical merits such as simpler structure, better manufacturability, improved cost-effectiveness, and higher reliability, among others.
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公开(公告)号：US20220108867A1
公开(公告)日：2022-04-07
申请号：US17305514
申请日：2021-07-08
Applicant: Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
Inventor： Zhongwei Chen , Xiaoming Chen , Daniel Tang , Liang-Fu Fan
IPC: H01J37/244 , H01J37/28 , H01J37/22
Abstract: The present invention provides a digital high-resolution detector for detecting X-ray, UV light or charged particles. In various embodiments, the digital detector comprises an array of CMOS or CCD pixels and a layer of conversion material on top of the array designed for converting incident X-ray, UV light or charged particles into photons for CMOS or CCD sensors to capture. The thin and high-resolution detector of the invention is particularly useful for monitoring and aligning beams in, and optimizing system performance of, an apparatus of charged-particle beam e.g. an electron microscope.
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公开(公告)号：US20180048041A1
公开(公告)日：2018-02-15
申请号：US15555668
申请日：2016-03-04
Applicant: Zhongwei CHEN , Hao LIU
Inventor： Zhongwei CHEN , Hao LIU
CPC classification number: H01M12/02 , H01M4/38 , H01M4/8657 , H01M4/9041 , H01M8/083 , H01M8/186 , H01M8/225 , H01M12/065 , H01M12/08 , H01M2004/027 , H01M2004/8684 , H01M2004/8689 , Y02E60/128
Abstract: A rechargeable tri-electrode single flow zinc air battery which is capable of providing theoretically unlimited cycle life is provided. The tri-electrode configuration consists of one anode and two cathodes, one for charging and another for discharging. The charge cathode may comprise a water-permeable metal mesh and/or metal foam, which avoids carbon corrosion. The discharge cathode is a catalytic oxygen reduction electrode. The anode comprises an inert, conductive electrode allowing for zinc deposition during battery charging, and zinc dissolving during battery discharging. The flowing electrolyte removes zinc ions from the anode preventing or minimizing the formation of zinc oxides during discharging, and clean the anode after each full discharge.
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Patent Agency Ranking
6.发明授权Core-shell structured bifunctional catalysts for metal air battery/fuel cell 有权用于金属空气电池/燃料电池的核壳结构双功能催化剂公开(公告)号：US09590253B2
公开(公告)日：2017-03-07
申请号：US13941139
申请日：2013-07-12
Applicant: Zhongwei Chen , Zhu Chen
Inventor： Zhongwei Chen , Zhu Chen
CPC classification number: H01M4/9016 , H01M4/8615 , H01M4/96 , H01M12/06 , Y02E60/50
Abstract: The present invention relates to a bifunctional catalyst for use with air metal batteries and fuel cell. The bifunctional catalyst comprising a core and a shell, where the core comprises a metal oxide and the shell comprises a carbon nanostructure. In a further aspect the bifunctional catalyst is catalytically active for oxygen reduction and oxygen evolution reactions.
Abstract translation: 本发明涉及一种用于空气金属电池和燃料电池的双功能催化剂。 包含核和壳的双功能催化剂，其中芯包含金属氧化物，壳包含碳纳米结构。 在另一方面，双功能催化剂对氧还原和析氧反应具有催化活性。
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公开(公告)号：US09581245B2
公开(公告)日：2017-02-28
申请号：US13437107
申请日：2012-04-02
Applicant: Qingpo Xi , Tao Li , Feng Cao , Fumin He , Zhongwei Chen
Inventor： Qingpo Xi , Tao Li , Feng Cao , Fumin He , Zhongwei Chen
CPC classification number: F16J15/0881 , F16L23/20
Abstract: A metal seal flange assembly for a vacuum system is presented. Its metal gasket has a crossectional shape that is an irregular hexagon with two acute angles between the longest side and the second- and third-longest sides, respectively. The longest side of the irregular hexagon is the vertical inner wall of the metal gasket. This design can reduce the normal force required to seal the metal seal flange assembly and reduce the number of bolts needed, enabling use in a limited working space.
Abstract translation: 提出了一种用于真空系统的金属密封法兰组件。 其金属垫片的横截面形状是不规则六边形，分别在最长侧和第二和第三最长边之间具有两个锐角。 不规则六边形的最长边是金属垫片的垂直内壁。 这种设计可以减少密封金属密封凸缘组件所需的法向力，并减少所需的螺栓数量，从而在有限的工作空间中使用。
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8.发明申请BI-FUNCTIONAL ELECTRODE FOR METAL-AIR BATTERIES AND METHOD FOR PRODUCING SAME 审中-公开用于金属气体电池的双功能电极及其制造方法公开(公告)号：US20150349325A1
公开(公告)日：2015-12-03
申请号：US14654256
申请日：2013-12-20
Applicant: Zhongwei CHEN , Dong Un LEE , Woong Hey PARK , Kun FENG
Inventor： Zhongwei Chen , Dong Un Lee , Hey Woong Park , Kun Feng
CPC classification number: H01M4/0497 , C30B7/14 , C30B29/16 , C30B29/60 , H01M4/0471 , H01M4/8615 , H01M4/88 , H01M4/8803 , H01M4/8825 , H01M4/9016 , H01M12/08
Abstract: A method of producing a bi-functional electrode for a metal-air battery or fuel cell comprises growing metal oxide nanowires directly on a metal support using a chemical deposition process. Preferably, the chemical process comprises an ammonium evaporation process. The metal support is preferably a porous metal structure, such as a metal mesh or foam. The metal oxide nanowires are formed of any transition metal or mixed transition metal. Preferably, the nanowires comprise cobalt oxide nanowires.
Abstract translation: 制造金属 - 空气电池或燃料电池用双功能电极的方法包括使用化学沉积工艺在金属载体上直接生长金属氧化物纳米线。 优选地，化学方法包括铵蒸发方法。 金属载体优选为多孔金属结构，例如金属网或泡沫。 金属氧化物纳米线由任何过渡金属或混合过渡金属形成。 优选地，纳米线包括氧化钴纳米线。
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9.发明申请Low Cost Synthesis of Single Material Bifunctional Nonprecious Catalyst for Electrochemical Devices 审中-公开低成本合成单材料双功能非贵重催化剂用于电化学设备公开(公告)号：US20150141666A1
公开(公告)日：2015-05-21
申请号：US14609966
申请日：2015-01-30
Applicant: Zhongwei CHEN , Aiping YU , Fathy Mohamed HASSAN
Inventor： Zhongwei CHEN , Aiping Yu , Fathy Mohamed HASSAN
IPC: H01M4/96
CPC classification number: H01M4/96 , C01B32/182 , C01B32/194 , C01B32/23 , H01M4/8615 , H01M12/06
Abstract: A bifunctional catalyst for catalyzing both an oxygen reduction reaction and an oxygen evolution reaction is provided, wherein the catalyst comprises a doped graphene backbone having thiol functional groups. A method for producing a bifunctional catalyst is also provided.
Abstract translation: 提供了用于催化氧还原反应和析氧反应两者的双功能催化剂，其中催化剂包含具有硫醇官能团的掺杂石墨烯骨架。 还提供了制备双功能催化剂的方法。
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10.发明授权公开(公告)号：US09000394B2
公开(公告)日：2015-04-07
申请号：US13464261
申请日：2012-05-04
Applicant: Weiming Ren , Zhongwei Chen
Inventor： Weiming Ren , Zhongwei Chen
IPC: H01J37/14
CPC classification number: H01J37/14 , B82Y10/00 , B82Y40/00 , H01J3/20 , H01J37/141 , H01J37/145 , H01J37/3177 , H01J2237/1035 , H01J2237/1415 , H01J2237/31774
Abstract: The present invention provides two ways to form a special permeability-discontinuity unit inside every sub-lens of a multi-axis magnetic lens, which either has a simpler configuration or has more flexibility in manufacturing such as material selection and mechanical structure. Accordingly several types of multi-axis magnetic lens are proposed for various applications. One type is for general application such as a multi-axis magnetic condenser lens or a multi-axis magnetic transfer lens, another type is a multi-axis magnetic non-immersion objective which can require a lower magnetomotive force, and one more type is a multi-axis magnetic immersion objective lens which can generate smaller aberrations. Due to using permeability-discontinuity units, every multi-axis magnetic lens in this invention can also be electrically excited to function as a multi-axis electromagnetic compound lens so as to further reduce aberrations thereof and/or realize electron beam retarding for low-voltage irradiation on specimen.
Abstract translation: 本发明提供了在多轴磁性透镜的每个子透镜内部形成特殊的渗透率不连续单元的两种方式，其具有更简单的构造或者在诸如材料选择和机械结构的制造中具有更大的灵活性。 因此，针对各种应用提出了几种类型的多轴磁性透镜。 一种用于一般应用，例如多轴磁聚焦透镜或多轴磁转移透镜，另一种类型是可以要求较低磁动势的多轴磁性非浸没物镜，另一种类型是 可以产生较小像差的多轴磁浸物镜。 由于使用导磁率不连续单位，本发明中的每个多轴磁性透镜也可以被电激励以用作多轴电磁复合透镜，以便进一步降低其像差和/或实现低电压的电子束延迟 对样品照射
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