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1.发明申请公开(公告)号：US20200261892A1
公开(公告)日：2020-08-20
申请号：US16653376
申请日：2019-10-15
申请人： Hyundai Motor Company , Kia Motors Corporation , Industry-University Cooperation Foundation Hanyang University ERICA Campus
发明人： Seung Hyeon Choi , Kyung Moon Lee , Dong Hoon Nam , Hoon Mo Park , Ji Min Lee , Yong Ho Choa , Joo Hyun Park
IPC分类号： B01J23/889 , B01J37/08 , C01B3/26 , B01J35/10
摘要： Disclosed are a nanocomposite including a catalytic material and a porous support having a structure of a blocky structure, a spherical structure, and a combination thereof and a manufacturing method thereof. The nanocomposite may have improved the lifespan performance while being applied to the oxidation-reduction reaction of a high temperature.
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2.发明申请公开(公告)号：US20200261890A1
公开(公告)日：2020-08-20
申请号：US16653520
申请日：2019-10-15
申请人： Hyundai Motor Company , Kia Motors Corporation , Industry-University Cooperation Foundation Hanyang University ERICA Campus
发明人： Seung Hyeon Choi , Kyung Moon Lee , Dong Hoon Nam , Hoon Mo Park , Ji Min Lee , Yong Ho Choa , Joo Hyun Park
IPC分类号： B01J23/10 , B01J21/12 , B01J35/00 , B01J35/10 , B01J35/06 , B01J37/04 , B01J37/08 , B01J37/00 , C01B3/04
摘要： Disclosed is a catalyst of a fiber form having improved the lifespan performance while being applied to the oxidation-reduction reaction of a high temperature and a manufacturing method thereof. Particularly, disclosed is a composite nanofiber catalyst including a support having a fiber form and a metal catalyst included in the support and a manufacturing method thereof.
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公开(公告)号：US20240363270A1
公开(公告)日：2024-10-31
申请号：US18376273
申请日：2023-10-03
申请人： HYUNDAI MOTOR COMPANY , KIA CORPORATION , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
发明人： Bo Kyeong Han , Sae Mee Yun , Kang Mo Koo , Yong Ho Choa , Byung Kwon Jang
CPC分类号： H01F1/0571 , B22F1/05 , B22F3/02 , B22F9/04 , B22F9/22 , C22C33/0235 , C22C38/005 , H01F41/0253 , B22F2201/013 , B22F2201/10 , B22F2301/355 , B22F2304/05 , B22F2998/10 , C22C2202/02
摘要： A method of preparing a magnet powder, and a magnet powder, are disclosed. The method includes: preparing a neodymium praseodymium (Nd, Pr) mixed oxide containing Nd and Pr; preparing iron (Fe) oxide; preparing boron (B) oxide; mixing the prepared (Nd, Pr) mixed oxide, iron oxide, and boron oxide to prepare a first mixture; mixing the first mixture with calcium (Ca) to prepare a second mixture; inducing diffusion while shaping and pressing the second mixture; reducing the shaped and pressed second mixture to prepare a magnetic substance containing Nd, Fe, and B; powdering the reduced magnetic substance; and removing reduction by-products from the powdered magnetic substance.
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公开(公告)号：US11193908B2
公开(公告)日：2021-12-07
申请号：US15749257
申请日：2016-07-22
发明人： Yong Ho Choa , Hyo Ryoung Lim , Yo Min Choi , Nu Si A Eom , Sungyoul Kim
IPC分类号： G01N27/409 , B82B1/00 , B82B3/00 , G01N27/12 , B82Y15/00
摘要： The present invention relates to a gas sensor and a manufacturing method thereof. A sensor body of the gas sensor is formed by cutting a multi-layered ceramic/metal platform where a plurality of sequential layer structures of a ceramic dielectric material and metal are layered in a layering direction. The sensor body includes at least one layered body wherein a ceramic dielectric material, a first internal electrode, a ceramic dielectric material, and a second internal electrode are sequentially layered. The first internal electrode and the second internal electrode are exposed through a cut surface by cutting. The first internal electrode is electrically connected to a first electrode terminal disposed on a first side of the sensor body, and the second internal electrode is electrically connected to a second electrode terminal disposed on a second side of the sensor body facing the first side. The first and the second internal electrode are exposed to form a sensing surface on at least one side of the sensor body excluding a side where the first and the second electrode terminal are installed. A gas sensing material layer for gas detection is formed on a portion or an entire upper portion of the sensing surface, or a metal film whose contact resistance with the gas sensing material layer is lower than the first and the second internal electrode is formed on upper portions of the first and the second internal electrode which are exposed and a gas sensing material layer for gas detection is formed on a portion or an entire upper portion of the sensing surface where the metal film is formed.
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公开(公告)号：US20180224391A1
公开(公告)日：2018-08-09
申请号：US15749257
申请日：2016-07-22
发明人： Yong Ho Choa , Hyo Ryoung Lim , Yo Min Choi , Nu Si A Eom , Sungyoul Kim
IPC分类号： G01N27/409 , B82B3/00 , B82B1/00
CPC分类号： G01N27/409 , B82B1/005 , B82B3/0004 , B82Y15/00 , G01N27/127
摘要： The present invention relates to a gas sensor and a manufacturing method thereof. A sensor body of the gas sensor is formed by cutting a multi-layered ceramic/metal platform where a plurality of sequential layer structures of a ceramic dielectric material and metal are layered in a layering direction. The sensor body includes at least one layered body wherein a ceramic dielectric material, a first internal electrode, a ceramic dielectric material, and a second internal electrode are sequentially layered. The first internal electrode and the second internal electrode are exposed through a cut surface by cutting. The first internal electrode is electrically connected to a first electrode terminal disposed on a first side of the sensor body, and the second internal electrode is electrically connected to a second electrode terminal disposed on a second side of the sensor body facing the first side. The first and the second internal electrode are exposed to form a sensing surface on at least one side of the sensor body excluding a side where the first and the second electrode terminal are installed. A gas sensing material layer for gas detection is formed on a portion or an entire upper portion of the sensing surface, or a metal film whose contact resistance with the gas sensing material layer is lower than the first and the second internal electrode is formed on upper portions of the first and the second internal electrode which are exposed and a gas sensing material layer for gas detection is formed on a portion or an entire upper portion of the sensing surface where the metal film is formed.
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公开(公告)号：US20230236144A1
公开(公告)日：2023-07-27
申请号：US18192899
申请日：2023-03-30
发明人： Yong Ho Choa , Ji Young Park , Min Seob Lim , Hong Baek Cho , Han Seung Lee
IPC分类号： G01N27/22
CPC分类号： G01N27/22 , G01N2027/222
摘要： Provided is a capacitive gas sensor. The capacitive gas sensor comprises a sensitive material for adsorbing and desorbing a target gas, an upper electrode surrounding the sensitive material, a lower electrode facing the upper electrode, and a porous structure disposed between the upper electrode and the lower electrode, wherein the capacitance of the sensitive material changes as the sensitive material adsorbs and desorbs the target gas.
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公开(公告)号：US11056559B2
公开(公告)日：2021-07-06
申请号：US16538157
申请日：2019-08-12
发明人： Yong Ho Choa , Nu Si A Eom , Hyo Ryoung Lim , Yoseb Song
IPC分类号： H01L29/16 , G01N27/12 , H01L29/872 , G01N27/404 , G01N27/414 , G01N27/407 , G01N33/00 , B82Y30/00
摘要： A method for manufacturing a gas sensor may be provided, the method comprising the steps of: preparing a porous base substrate; providing, on the porous base substarte, a source solution having graphene dispersed in a base solvent; manufacturing a graphene-impregnated base substrate by means of a driving process; and forming a first electrode and a second electrode on the graphene-impregnated base substrate.
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公开(公告)号：US09796897B2
公开(公告)日：2017-10-24
申请号：US14771024
申请日：2014-02-26
发明人： Yong Ho Choa , Gyunbok Kim , Seunghan Ryu , Manwar Hussain , Austin Pil Joong Yoon , Keum Suk Seo
IPC分类号： C09K5/14 , B29B9/16 , B29C43/00 , C08K3/00 , B29K33/00 , B29K105/16 , B29K105/00 , B29K509/04 , B29L31/34
CPC分类号： C09K5/14 , B29B9/16 , B29B2009/163 , B29C43/003 , B29K2033/12 , B29K2105/16 , B29K2105/253 , B29K2509/04 , B29K2995/0013 , B29L2031/3468 , C08K3/013
摘要： Provided are a thermally conductive ceramic-polymer composite in which thermoplastic polymers form a matrix, and planar fragments of thermally conductive ceramic or thermally conductive ceramic powder is uniformly dispersed on a grain boundary between thermoplastic polymer particles, thereby forming a thermal pathway, wherein the thermoplastic polymer particles are formed in a faceted shape, and the average size of the planar fragments of thermally conductive ceramic or thermally conductive ceramic powder is smaller than 1/10 of that of the thermoplastic polymer particles, and a method of preparing the same. Accordingly, since dispersion and interfacial affinity of a thermally conductive ceramic filler are maximized, excellent electrical insulation and excellent thermal conductivity can be exhibited even with a small content of the thermally conductive ceramic filler.
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公开(公告)号：US11761916B2
公开(公告)日：2023-09-19
申请号：US16538739
申请日：2019-08-12
发明人： Yong Ho Choa , Seil Kim , Yoseb Song
IPC分类号： G01N25/32 , G01N1/22 , H10N10/01 , H10N10/857 , G01N31/10
CPC分类号： G01N25/32 , G01N1/2273 , H10N10/01 , H10N10/857 , G01N31/10
摘要： A method for manufacturing a gas sensor may be provided, the method comprising the steps of: preparing a metal nanowire; manufacturing a thermoelectric composite by adding a polymer bead to the metal nanowire, and then mechanically mixing same; manufacturing a thermoelectric layer by hot-pressing the thermoelectric composite; forming a first electrode on the upper surface of the thermoelectric layer, and forming a second electrode on the lower surface of the thermoelectric layer; and disposing a heating catalyst layer on the first electrode.
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10.发明申请THERMOCHEMICAL GAS SENSOR USING CHALCOGENIDE-BASED NANOWIRES AND METHOD FOR MANUFACTURING THE SAME 审中-公开使用基于氯醛的纳米管的热化学气体传感器及其制造方法公开(公告)号：US20160013389A1
公开(公告)日：2016-01-14
申请号：US14770921
申请日：2014-02-26
发明人： Yong Ho Choa , Seil Kim , Young In Lee , Yo Min Choi
CPC分类号： H01L35/16 , B82Y15/00 , B82Y40/00 , G01N27/125 , G01N27/127 , G01N33/005 , H01L35/04 , H01L35/32 , H01L35/34
摘要： The present invention relates to a thermochemical gas sensor using chalcogenide-based nanowires and a method for same, comprising: a porous alumina template comprising a front surface, a rear surface, and side surfaces and provided with a plurality of pores which penetrate the front surface and the rear surface; a seed layer provided on the rear surface of the porous alumina template for covering the plurality of pores and having electric conductivity; a plurality of chalcogenide-based nanowires provided inside the plurality of pores and coming into contact with the seed layer, which is exposed through the plurality of pores; an electrode provided on the front surface of the porous alumina template and coming into contact with the chalcogenide-based nanowires; an electrode wire for electrically connecting with the electrode; and a porous white gold-alumina composite or a porous palladium-alumina composite provided above the electrode for causing a heat-emitting reaction by coming into contact with a gas to be detected, wherein the chalcogenide-based nanowires comprise BixTey(1.5≦x≦2.5, 2.4≦y≦3.6), SbxTey(1.5≦x≦2.5, 2.4≦y≦3.6) or (Bi1-xSbx)Te3(0
摘要翻译： 本发明涉及一种使用硫族化物基纳米线的热化学气体传感器及其方法，包括：多孔氧化铝模板，包括前表面，后表面和侧表面，并且具有穿过前表面的多个孔 和后表面; 种子层，设置在所述多孔氧化铝模板的后表面上，用于覆盖所述多个孔并具有导电性; 多个硫属元素化物系的纳米线设置在多个孔内，与通过多个孔露出的种子层接触; 设置在多孔氧化铝模板的前表面上并与硫族化物基纳米线接触的电极; 用于与电极电连接的电极线; 以及设置在电极上方的多孔白金 - 氧化铝复合物或多孔钯 - 氧化铝复合物，用于通过与要检测的气体接触而引起发热反应，其中硫族化物基纳米线包括BixTey（1.5＆amp; NlE; x＆ （2.5，2.4＆nlE; y＆nlE; 3.6），Sb x Tey（1.5＆nlE; x＆nlE; 2.5,2.4和nlE; y＆nlE; 3.6）或（Bi1-xSbx）Te3（0
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