Patents by Inventor Ah-Reum Kim
Ah-Reum Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240128480Abstract: An exemplary embodiment of the present disclosure provides a separator for a fuel cell, which is stacked on a reaction layer including a membrane electrode assembly (MEA). The separator includes a plate body stacked on the reaction layer, a wave pattern provided on one surface of the plate body that faces the reaction layer, the wave pattern being configured to define a reaction channel disposed between the reaction layer and the plate body and provided in a first direction in which a reactant gas is supplied, so that the reactant gas flows along the reaction channel, and a land provided along a lateral end of the wave pattern and disposed to be in contact with the reaction layer, thereby obtaining an advantageous effect of improving performance and operational efficiency.Type: ApplicationFiled: December 20, 2022Publication date: April 18, 2024Applicant: HYUNDAI MOBIS Co., Ltd.Inventors: Sun Hwi KIM, Hyun Kyu CHOI, Bae Jung KIM, Chan Gi KIM, Hyun Jeong KIM, Ah Reum KIM
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Publication number: 20240120516Abstract: The present invention relates to a fuel cell system capable of adjusting a bypass flow rate, in which the bypass flow rate can be automatically adjusted according to the temperature of an exhaust gas discharged from a fuel cell stack. The fuel cell system capable of adjusting a bypass flow rate, according to an embodiment of the present invention, comprises: an exhaust gas inlet flow path; an exhaust gas discharge flow path; a bypass flow path for bypassing a membrane humidifier to allow at least a portion of an exhaust gas discharged from a fuel cell stack to flow to the exhaust gas discharge flow path; and a bypass flow rate control unit that is formed in the bypass flow path and adjusts the opening degree of the bypass flow path according to the temperature of the exhaust gas discharged from the fuel cell stack.Type: ApplicationFiled: March 7, 2022Publication date: April 11, 2024Inventors: Young Seok OH, Ah Reum LEE, Ji Yoon LEE, Kyoung Ju KIM
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Publication number: 20240120511Abstract: The present invention relates to a fuel cell humidifier which can prevent condensate water from entering a running fuel cell stack. A fuel cell humidifier according to an embodiment of the present invention comprises: a humidification module; a first cap having an air discharge port for supplying air humidified by the humidification; a second cap having an air inlet port for receiving the air supplied from the outside; a bypass tube for transferring condensate water, which is generated in the interior space of the first cap or flows into the interior space of the first cap from the hollow fiber membranes, to the interior space of the housing where the off-gas flows; and a condensation inducing part extending from the air discharge port to expand the humidified air so as to induce condensation of condensate water while slowing down the speed thereof.Type: ApplicationFiled: March 3, 2022Publication date: April 11, 2024Inventors: Young Seok OH, Ah Reum LEE, Ji Yoon LEE, Kyoung Ju KIM
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Publication number: 20240113311Abstract: The present invention relates to a membrane humidifier for a fuel cell, which can prevent a decrease in humidification efficiency, caused by a pressure difference between the inside and the outside of the membrane humidifier. The membrane humidifier for a fuel cell, according to an embodiment of the present invention, comprises: a middle case having a module insertion part formed therein; a cap case coupled to the middle case; a hollow fiber membrane module inserted in the module insertion part; and an active pressure buffer part formed between the middle case and the module insertion part to prevent expansion of the module insertion part due to a pressure difference between the inside and the outside of the middle case or relieve the pressure difference according to output states of the fuel cell.Type: ApplicationFiled: March 8, 2022Publication date: April 4, 2024Inventors: Young Seok OH, Ah Reum LEE, Ji Yoon LEE, Kyoung Ju KIM
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Publication number: 20240105972Abstract: The present invention relates to a fuel cell membrane humidifier capable of preventing a humidification efficiency decrease caused by the pressure difference between the inside and the outside of the membrane humidifier. The fuel cell membrane humidifier according to an embodiment of the present invention comprises: a middle case in which a module insertion part, including an outer partition wall formed spaced apart from an inner wall of the middle case, is formed; a cap case coupled to the middle case; a hollow fiber membrane module inserted into the module insertion part; and an active pressure buffer part that is formed between the middle case and the module insertion part and prevents the module insertion part from expanding due to the pressure difference between the inside and the outside of the middle case, or resolves the pressure difference, according to the output status of the fuel cell.Type: ApplicationFiled: March 8, 2022Publication date: March 28, 2024Inventors: Young Seok OH, Ah Reum LEE, Ji Yoon LEE, Kyoung Ju KIM
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Publication number: 20240071907Abstract: A semiconductor device includes first and second substrates connected to each other. The second substrate includes a plate layer having first and second faces. Gate electrode layers are disposed on the first face of the plate layer. Channel structures extend through the gate electrode layers. Word-line cutting structures extend through the gate electrode layers and are spaced apart from each other. Via structures are disposed on the second face of the plate layer. Via connecting structures are disposed on the top face of the via structures. A width of the bottom face of each of the via structures is greater than a width of the top face of each of the via structures. A width of the bottom face of each of the via connecting structures is less than a width of the top face of each of the via connecting structures.Type: ApplicationFiled: May 16, 2023Publication date: February 29, 2024Inventors: Ah Reum LEE, Woo Sung YANG, Ji Mo GU, Jao Ho KIM, Suk Kang SUNG
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Publication number: 20240067668Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.Type: ApplicationFiled: December 29, 2021Publication date: February 29, 2024Inventors: Yi Kyung Ko, Ah Reum Han, Jin Hee Park, Yeong Deok Lee, Hye Rim Im, Kyun Eun Kim, Dong Keun Hwang, Su Been Nam, Myung Hoe Heo, Se Rin Cho, Eun Hwa Ko, Sung Hwan Kim, Hwan Geun Choi
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Publication number: 20230327142Abstract: A separator for a fuel cell, which is stacked on a gas diffusion layer provided on a membrane electrode assembly (MEA), includes a plate body stacked on the gas diffusion layer and including a flow path part to define a reaction region to react with the membrane electrode assembly and manifold parts spaced apart from the flow path part; through-holes disposed in the plate body to guide target fluids that have passed through the manifold parts to the flow path part; and hole caps disposed on one surface of the plate body that faces the gas diffusion layer to at least partially cover the through-holes, the hole caps defining movement paths through which the target fluids move.Type: ApplicationFiled: July 20, 2022Publication date: October 12, 2023Applicant: HYUNDAI MOBIS CO., LTD.Inventors: Bae Jung KIM, Hyun Jeong KIM, Ah Reum KIM, Young Chul PARK, Hyun Kyu CHOI, Chan Gi KIM, Sun Hwi KIM
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Publication number: 20230219258Abstract: Disclosed is a workplate for Y-axis compensation of an ingot and a Y-axis compensation method of the ingot using the same, which is configured to facilitate Y-axis compensation of the ingot in a state in which the ingot is attached to the workplate at a cutting-plane angle so as to be cut using a wire-cutting apparatus. More particularly, the workplate includes a bottom plate, having an upper surface formed to be curved downwards with respect to a longitudinal direction of the ingot attached to the workplate, and a top plate, coupled to the bottom plate such that a lower surface thereof is movable along the upper surface of the bottom plate and configured to enable the ingot to be coupled to an upper portion thereof at an X-axis cutting-plane angle.Type: ApplicationFiled: February 24, 2022Publication date: July 13, 2023Inventor: Ah Reum KIM
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Publication number: 20230223564Abstract: A bipolar plate for a fuel cell capable of improving the cooling efficiency of a fluid passing through the bipolar plate, and a fuel cell including the same, includes a first plate, a second plate coupled to the first plate to form a channel in which a fluid flows, and a plurality of protrusions disposed apart from each other in the channel in a flow direction of the fluid.Type: ApplicationFiled: December 20, 2022Publication date: July 13, 2023Applicant: HYUNDAI MOBIS Co., Ltd.Inventors: Sun Hwi KIM, Hyun Jeong KIM, Ah Reum KIM, Bae Jung KIM, Hyun Kyu CHOI, Chan Gi KIM
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Publication number: 20230074317Abstract: A semiconductor memory device including a memory cell array and a peripheral circuit element configured to control an operation of the memory cell array, and a wiring structure including first and second wiring structures spaced apart from each other on the peripheral circuit element, a first voltage and a second voltage different from the first voltage applied to two opposite ends of the first wiring structure, respectively, and a third voltage different from the first and second voltages applied to the second wiring structure, may be provided. The first wiring structure includes first lines extended in a first direction and spaced apart from each other in a second direction crossing the first direction, the second wiring structure includes second lines extended in the first direction and spaced apart from each other in the second direction, and one of the first lines is between the second lines.Type: ApplicationFiled: March 16, 2022Publication date: March 9, 2023Applicant: Samsung Electronics Co., Ltd.Inventors: Ki Won KIM, Sung Hoon KIM, Ah Reum KIM
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Publication number: 20230076682Abstract: The present disclosure relates to a method and device for matching oral model data that can provide matching points to a user to match oral model data and computerized tomography (CT) data even for edentulous patients. In this way, convenience is increased and matched data can be effectively generated even for edentulous patients for whom matching has been difficult conventionally.Type: ApplicationFiled: January 28, 2021Publication date: March 9, 2023Applicant: OSSTEM IMPLANT CO., LTD.Inventors: Ah Reum KIM, Jong Moon KIM, Jin Woong KIM, Hyo Jeong KIM, Sang Hyeong CHO, Kyoo Ok CHOI
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Publication number: 20220386607Abstract: The present invention relates to a novel nicotinamide compound, a method for preparing the same, and a herbicide comprising the compound. The compound of the present invention is useful as a herbicide for foliar treatment or soil treatment because it has high safety for wheat or corn and has excellent herbicidal activity against grassy weeds, sedge weeds or broadleaf weeds.Type: ApplicationFiled: October 21, 2020Publication date: December 8, 2022Inventors: Young Kwan KO, Eun Ae KIM, Ill Young LEE, Hee Nam LIM, Jung Sub CHOI, Jee Hee SUH, Nack Jeong KIM, Dong Wan KOO, Hyun Jin KIM, Gyu Hwan YON, Jae Deok KIM, Seungae OH, So-Young LEE, Chan Yong PARK, Yun Kyoung HWANG, Byung Hoon AHN, Ah Reum KIM, Hye Ji HAN, Sungjun PARK, Junhyuk CHOI, Jisoo LIM, Mi Sook HONG
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Publication number: 20220384831Abstract: Disclosed are fuel cells including a membrane electrode assembly (MEA), a separator stacked on a surface of the membrane electrode assembly, a beading portion protruding from a first surface of the separator that faces the membrane electrode assembly, and a sealing member disposed between the membrane electrode assembly and the beading portion and being configured to seal a portion between the membrane electrode assembly and the separator, thereby ensuring rigidity and improving safety and reliability of the fuel cell.Type: ApplicationFiled: October 7, 2021Publication date: December 1, 2022Applicant: HYUNDAI MOBIS CO., LTD.Inventors: Hyun Jeong KIM, Bae Jung KIM, Ah Reum KIM, Hyun Kyu CHOI, Zuh Youn VAHC, Sun Hwi KIM, Chan Gi KIM
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Publication number: 20220375963Abstract: A semiconductor device includes first, second, and third power rails extending in a first direction on a substrate and sequentially spaced apart in a second direction intersecting the first direction. A fourth power rail extends in the first direction on the substrate between the first and third power rails. A first well of a first conductive type is displaced inside the substrate between the first and third power rails. Cells are continuously displaced between the first and third power rails and share the first well. The first and third power rails are provided with a first voltage, the second power rail is provided with a second voltage different from the first voltage, the fourth power rail is provided with a third voltage different from the first voltage and the second voltage, and the cells are provided with the third voltage from the fourth power rail.Type: ApplicationFiled: February 25, 2022Publication date: November 24, 2022Inventors: DAE SEONG LEE, AH REUM KIM, MIN SU KIM
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Publication number: 20220344693Abstract: A fuel cell includes: a membrane electrode assembly (MEA); a first separator stacked on a first surface of the membrane electrode assembly; a second separator stacked on a second surface of the membrane electrode assembly; a first sealing member disposed on the first separator and configured to seal a space between the first separator and the membrane electrode assembly; a second sealing member disposed on the second separator and configured to seal a space between the second separator and the membrane electrode assembly; and a fastening part configured to fasten the first sealing member to the second sealing member.Type: ApplicationFiled: July 12, 2021Publication date: October 27, 2022Applicant: HYUNDAI MOBIS CO., LTD.Inventors: Hyun Jeong KIM, Bae Jung KIM, Ah Reum KIM, Zuh Youn VAHC, Hyun Kyu CHOI, Sun Hwi KIM, Chan Gi KIM
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Publication number: 20220336826Abstract: A separator for a fuel cell, which is stacked on a reaction layer including a membrane electrode assembly (MEA) and a gas diffusion layer (GDL) stacked on the MEA includes: a plate body stacked on the GDL; stepped portions, on which a reactant gas flows in a first direction, disposed on a first surface of the plate body, the first surface facing the GDL, the stepped portions disposed in a second direction that intersects the first direction in which the reactant gas flows; lands disposed on the stepped portions so as to be spaced apart from one another in the second direction, the lands being in contact with the GDL; first channels defined between the GDL and the stepped portions so as to be disposed between adjacent lands, the first channels configured such that the reactant gas flows along the first channels; and second channels defined between the plate body and the GDL so as to communicate with the first channels, the second channels configured such that the reactant gas flows along the second channels.Type: ApplicationFiled: August 10, 2021Publication date: October 20, 2022Inventors: Ah Reum KIM, Hyun Kyu CHOI, Hyun Jeong KIM, Zuh Youn VAHC, Bae Jung KIM, Sun Hwi KIM, Chan Gi KIM
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Publication number: 20220291180Abstract: Disclosed is a method of quantifying furan concentration to efficiently manage a deterioration state of a transformer in the field. The method of quantifying furan concentration includes: measuring a color-development degree of an extraction solution by making the extraction solution containing furan extracted from an insulating-oil sample mix and react with a color reagent; and quantifying furan concentration by correction based on a correlation between a precise analysis and a simple analysis with regard to the color-development degree of the extraction solution, wherein the precise analysis is to obtain a quantitative value through color column separation based on high performance liquid chromatography (HPLC) in a laboratory to analyze a furan compound in insulating oil of a transformer, and the simple analysis is to obtain a chromaticity value in a field with regard to actual transformer samples.Type: ApplicationFiled: June 10, 2020Publication date: September 15, 2022Inventors: Hyun-Joo PARK, Byeong-Sub KWAK, Beom-Joo KIM, Ah-Reum KIM, Tae-Hyun JUN
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Patent number: 11394374Abstract: A semiconductor device is provided. The semiconductor device includes a clock gate line supplying a clock signal, an inverted clock gate line disposed in parallel to the clock gate line and supplying an inverted clock signal, a first latch circuit performing a first latch operation based on the clock signal and the inverted clock signal and a second latch circuit disposed on a side of the first latch circuit in a first direction, receiving an output of the first latch circuit, and operating based on the clock signal and the inverted clock, wherein the clock gate line and the inverted clock gate line extend in the first direction and are shared by the first and second latch circuits.Type: GrantFiled: May 5, 2020Date of Patent: July 19, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun Lee, Min Su Kim, Ah Reum Kim
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Patent number: 11386254Abstract: A semiconductor circuit and a layout system of the semiconductor circuit, the semiconductor circuit including a latch; a feedback inverter that receives an output signal of the latch via a first node and provides a feedback signal to the latch responsive to the output signal of the latch; and an output driver which receives the output signal of the latch via the first node and provides an output signal externally of the semiconductor circuit. The output driver includes an even number of inverters, and the latch, the feedback inverter, and the output driver share a single active region formed without isolation.Type: GrantFiled: August 23, 2019Date of Patent: July 12, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Ah Reum Kim, Min Su Kim, Young O Lee