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公开(公告)号:US20180206367A1
公开(公告)日:2018-07-19
申请号:US15480234
申请日:2017-04-05
Inventor: Ilkwon OH , Si Hwa LEE
CPC classification number: H05K9/0083 , H01B1/023
Abstract: The present invention relates to a polymer-based, wideband electromagnetic wave shielding film. More particularly, the present invention relates to a polymer-based, wideband electromagnetic wave shielding film capable of improving electromagnetic wave shielding and absorption performance, by applying a multilayer graphene-nanotube-metal oxide nanostructure in which a conductive material and a magnetic material are complexly combined, as a filler of the polymer.
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公开(公告)号:US20250059687A1
公开(公告)日:2025-02-20
申请号:US18791894
申请日:2024-08-01
Inventor: Ilkwon OH , Huapeng ZHANG , Saewoong OH
Abstract: The present disclosure relates to a knot-architectured fabric actuator using a knot shape and an application using the same. The knot-architectured fabric actuator includes at least one knot including a node formed by fiber strands crossing each other, and at least one petal including a closed curve formed by fibers extending from both ends of the knot. Further, the knot-architectured fabric actuator may be used as a wearable robot, a soft actuator, an adaptive sleeve, or the like.
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公开(公告)号:US20180212254A1
公开(公告)日:2018-07-26
申请号:US15703653
申请日:2017-09-13
Inventor: Ilkwon OH , Seok-Hu BAE , Ji Eun KIM
IPC: H01M4/90
CPC classification number: H01M4/9025 , C25B1/04 , C25B11/035 , C25B11/0415 , C25B11/0478 , H01M4/8673 , H01M4/8882 , H01M4/9016 , H01M4/9083 , Y02E60/366
Abstract: The present invention provides a catalyst electrode for oxygen evolution comprising an electrode current collector comprising a carbon fiber fabric, a nanowire layer comprising a metal oxide-based porous nanowire grown radially from the surface of the carbon fiber, and a porous carbon coating layer disposed around the outer surface of the nanowire, thereby maximizing the specific surface area and increasing the electron transfer rate, and thus exhibiting an excellent catalytic activity for oxygen evolution reaction, and a preparation method thereof.
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