Patents by Inventor Ji-Yoon Lee
Ji-Yoon Lee 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: 20240140779Abstract: A device for controlling refueling of hydrogen includes one or more hydrogen refueling facilities for refueling a hydrogen-powered vehicle with hydrogen, and a controller that collects state information and control data of the hydrogen refueling facilities, performs artificial intelligence learning based on the state information and the control data, and controls operations of the hydrogen refueling facilities based on the learning result.Type: ApplicationFiled: March 17, 2023Publication date: May 2, 2024Inventors: Ji Hye Park, Dae Nyung Lee, A Eun Yoon
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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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Patent number: 11944661Abstract: The present invention provides a pharmaceutical composition for prevention or treatment of a stress disease and depression, the pharmaceutical composition be safely useable without toxicity and side effects by using an extract of leaves of Vaccinium bracteatum Thunb., which is natural resource of Korea, so that the reduction of manufacturing and production costs and the import substitution and export effects can be expected through the replacement of a raw material for preparation with a plant inhabiting in nature.Type: GrantFiled: February 7, 2018Date of Patent: April 2, 2024Assignee: JEONNAM BIOINDUSTRY FOUNDATIONInventors: Chul Yung Choi, Dool Ri Oh, Yu Jin Kim, Eun Jin Choi, Hyun Mi Lee, Dong Hyuck Bae, Kyo Nyeo Oh, Myung-A Jung, Ji Ae Hong, Kwang Su Kim, Hu Won Kang, Jae Yong Kim, Sang O Pan, Sung Yoon Park, Rack Seon Seong
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Patent number: 11945864Abstract: A monoclonal antibody or an antigen-binding fragment thereof according to an embodiment of the present invention can bind to lymphocyte-activation gene 3 (LAG-3) including a heavy chain variable region and a light chain variable region and inhibit the activity thereof. Thus it is expected to be useful for the development of immunotherapeutic agents for various disorders that are associated with LAG-3.Type: GrantFiled: June 28, 2019Date of Patent: April 2, 2024Assignee: Y-BIOLOGICS INC.Inventors: Sang Pil Lee, Ji-Young Shin, Sunha Yoon, Yunseon Choi, Jae Eun Park, Ji Su Lee, Youngja Song, Gisun Baek, Seok Ho Yoo, Yeung-chul Kim, Dong Jung Lee, Bum-Chan Park, Young Woo Park
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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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Patent number: 11939308Abstract: The present disclosure provides a novel biphenyl derivative compound or a pharmaceutically acceptable salt thereof. The biphenyl derivative compound or pharmaceutically acceptable salt thereof according to the present disclosure is a compound that increases Nm23-H1/NDPK activity and can inhibit cancer metastasis and growth. Thus, it exhibits excellent effects not only on the prevention, alleviation and treatment of cancer, but also on the suppression of cancer metastasis.Type: GrantFiled: May 30, 2019Date of Patent: March 26, 2024Assignee: EWHA University—Industry Collaboration FoundationInventors: Kong Joo Lee, Hee-Yoon Lee, Je Jin Lee, Hwang Suk Kim, Ji-Wan Seo, Hongsoo Lee, Ji Soo Shin, Bo-kyung Kim
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Publication number: 20240063409Abstract: The present invention relates to a fuel cell membrane humidifier which adjusts a clearance between hollow fiber membranes according to a temperature of a fluid flowing between the hollow fiber membranes to improve humidification efficiency. A fuel cell membrane humidifier according to an embodiment of the present invention comprises: a mid-case; a cap fastened to the mid-case; a plurality of hollow fiber membranes disposed in the mid-case and exchanging moisture with an air supplied from the outside and flue gas introduced from a fuel cell stack to humidify the air; and a clearance adjustment pipe disposed between the plurality of hollow fiber membranes and formed of a material having a thermal expansion coefficient different from that of the plurality of hollow fiber membranes, so as to adjust the clearance between the plurality of hollow fiber membranes according to a temperature of flue gas.Type: ApplicationFiled: January 27, 2022Publication date: February 22, 2024Inventors: Young Seok OH, Ah Reum LEE, Ji Yoon LEE, Kyoung Ju KIM
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Publication number: 20240043800Abstract: Provided is a method of differentiating a pluripotent stem cell-derived hemogenic endothelial cell into a lymphoid lineage blood cell, enabling a hemogenic endothelial cell to be cultured for a long period of time so as to be induced into a lymphoid lineage blood cell, thereby facilitating induction of generation of immune cells such as T cells, B cells, and NK cells.Type: ApplicationFiled: February 4, 2022Publication date: February 8, 2024Applicant: SUNGKWANG MEDICAL FOUNDATIONInventors: Ji Yoon LEE, Ah Reum LEE, Jung Eun PARK
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Publication number: 20240030467Abstract: The present invention relates to a fuel cell membrane humidifier capable of preventing a humidification efficiency decrease caused by a pressure difference between the inside and the outside of a membrane humidifier. A fuel cell membrane humidifier 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 which is formed between the middle case and the module insertion part and prevents expansion of the module insertion part by a pressure difference between the inside and the outside of the middle case according to an output state of a fuel cell or relieves the pressure difference therebetween.Type: ApplicationFiled: January 26, 2022Publication date: January 25, 2024Inventors: Do Woo KIM, Kyoung Ju KIM, Na Hyun AHN, In Ho KIM, Young Seok OH, Ah Reun LEE, Ji Yoon LEE
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Publication number: 20240001303Abstract: The present invention relates to a hollow fiber membrane including, sequentially from the center: a first layer having a high-density sponge structure including pores with a size of 1 nm or less; a second layer including a finger-shaped structure; and a third layer having a low-density sponge structure including pores with a size of 10 to 1,000 ?m, and to a method for producing the hollow fiber membrane.Type: ApplicationFiled: December 7, 2021Publication date: January 4, 2024Inventors: Ji Yoon LEE, Young Seok OH, Ah Reum LEE
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Publication number: 20230411650Abstract: The present invention relates to a fuel cell membrane humidifier which can actively control the flow rate of exhaust gas flowing from a fuel cell stack according to the output condition of a fuel cell. A fuel cell membrane humidifier according to one embodiment of the present invention comprises: a mid-case having an inlet through which wetting gas supplied from the fuel cell stack is introduced and an outlet through which the wetting gas is discharged; a cartridge disposed inside the mid-case and accommodating a plurality of hollow fiber membranes; a bypass space formed in the space between the mid-case and the cartridge; and an active blocking member for controlling the degree of opening of the bypass space according to the temperature of the wetting gas introduced through the inlet.Type: ApplicationFiled: January 4, 2022Publication date: December 21, 2023Inventors: Young Seok OH, Ah Reum LEE, Ji Yoon LEE, Kyoung Ju KIM
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Patent number: 11461893Abstract: Disclosed herein is a server collectively managing rejection codes for each type of a medical image and determining accuracy of the codes for the medical image transmitted from a medical imaging apparatus, providing a feedback, and a method of controlling the same. A medical imaging apparatus disclosed herein assigns rejection codes based on feedback received from the server and a method disclosed controls the same. The server includes a communication circuitry configured to communicate with a medical imaging apparatus, and a controller configured to control the communication circuitry to receive a medical image and a rejection code assigned to the medical image from the medical imaging apparatus, perform an image processing on the medical image to determine the rejection code of the medical image, and compare the determined rejection code and the received rejection code to generate information associated with a result of the comparison.Type: GrantFiled: January 9, 2020Date of Patent: October 4, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong Eun Seo, Sung Nam Kim, Ji Yoon Lee
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Publication number: 20210156820Abstract: Disclosed is a biological measurement device. The biological measurement device includes a first plate including a first transmission window; an electrode structure disposed on the first plate and spaced apart from the first window; a chamber plate disposed over the electrode structure and the first plate, the chamber plate including for exposing a portion of the electrode structure and the first transmission window; a second plate disposed over the chamber plate, the second plate including a second transmission window facing the first transmission window; a light emitting unit positioned either over the second transmission window and emitting light toward the second transmission window; and a light receiving unit disposed under the first transmission window and being configured to receive the light which the light emitting unit supplies to pass through the blood sample.Type: ApplicationFiled: May 19, 2017Publication date: May 27, 2021Inventors: Jong Min Jeong, Jin Keun Han, Yong Min Kim, Sun Hee Lim, Ji Yoon Lee, Byeong Chan An, Won Seok Song
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Patent number: 10790555Abstract: Disclosed is a temperature-raising system for a battery module, which includes a heater assembly including a heater and a heater cover. The temperature-raising system includes: a battery module that includes one or more batteries; two or more heater assemblies that are attached to the battery module using a fixing means; a temperature sensor that is connected to the battery module or to the heater assemblies and senses a temperature of the battery module; and a controller that receives a preset target temperature, senses the temperature of the battery module using the temperature sensor, and turns on or off the heater using a voltage of the battery module, based on the preset target temperature and the temperature of the battery module that is sensed by the temperature sensor, the preset target temperature being a temperature that the battery module is targeted to reach.Type: GrantFiled: December 23, 2014Date of Patent: September 29, 2020Assignee: SK INNOVATION CO., LTD.Inventors: Ji Yoon Lee, Dong Hun Lim, Yun Nyoung Lee, Seung Hoon Ju
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Publication number: 20200234437Abstract: Disclosed herein is a server collectively managing rejection codes for each type of a medical image and determining accuracy of the codes for the medical image transmitted from a medical imaging apparatus, providing a feedback, and a method of controlling the same. A medical imaging apparatus disclosed herein assigns rejection codes based on feedback received from the server and a method disclosed controls the same. The server includes a communication circuitry configured to communicate with a medical imaging apparatus, and a controller configured to control the communication circuitry to receive a medical image and a rejection code assigned to the medical image from the medical imaging apparatus, perform an image processing on the medical image to determine the rejection code of the medical image, and compare the determined rejection code and the received rejection code to generate information associated with a result of the comparison.Type: ApplicationFiled: January 9, 2020Publication date: July 23, 2020Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong Eun SEO, Sung Nam KIM, Ji Yoon LEE
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Publication number: 20190168168Abstract: Disclosed are a superhydrophobic microfiltration membrane capable of facilitating higher permeate flux without separation performance deterioration when performing a water treatment based on a membrane distillation method, a filtration module for membrane distillation comprising the same, and a method for manufacturing the same. The superhydrophobic microfiltration membrane of the present invention comprises a porous member having a plurality of fine pores having an average pore size of 1 ?m to 100 ?m and has a pure water contact angle of 130° or more.Type: ApplicationFiled: June 16, 2017Publication date: June 6, 2019Applicant: KOLON INDUSTRIES, INC.Inventors: Ji Yoon LEE, Kwang-Jin LEE
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Patent number: 10014560Abstract: Provided is a secondary battery pack including a plurality of secondary battery modules including a plurality of secondary battery cells stacked in parallel to each other in a vertical direction, a cover, and a switch installed at an upper side of the one end in the horizontal direction of the cover, a housing, a Power Relay Assembly (PRA) including a relay electrically connected to the secondary battery cells and switches, for transmitting charging power supplied from the outside to the secondary battery cells when the relay is in a close state and changing the relay to an open state when the switch is pushed according to pressure applied to an upper side from a lower surface of the cover, and a Battery Management System (BMS) for controlling the Power Relay Assembly (PRA).Type: GrantFiled: June 26, 2014Date of Patent: July 3, 2018Assignee: SK Innovation Co., Ltd.Inventors: Seung Hoon Ju, Ji Yoon Lee, Dong Hun Lim, Yun Nyoung Lee, Won Wook Kim, Sang Hyuk Kim, Jeong Woon Ko
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Patent number: D778947Type: GrantFiled: July 29, 2014Date of Patent: February 14, 2017Assignee: SAMSUNG ELECTRONICS CO., LTDInventors: Ji-Yoon Lee, Eun-Bi Kim, Ji-Hye Kim, Ja-Youn Lee