Patents by Inventor Hyokyung Lee
Hyokyung 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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Patent number: 11865133Abstract: The present disclosure relates to a pharmaceutical composition for preventing or treating inflammatory bowel disease, comprising an intestinal organoid and a TNF? inhibitor. The combination use of the intestinal organoid and TNF? inhibitor according to the present disclosure can alleviate symptoms of inflammatory bowel disease such as weight loss, diarrhea, and bloody stool, and can inhibit fibrosis of the intestinal mucosa due to inflammation. In particular, when the intestinal organoid and the anti-inflammatory TNF? inhibitor are used in combination, the therapeutic effect is significantly superior to that of multiple administrations of the TNF? inhibitor, and thus it can be usefully used as an agent for preventing or treating inflammatory bowel disease.Type: GrantFiled: September 16, 2022Date of Patent: January 9, 2024Assignee: ORGANOIDSCIENCES LTD.Inventors: Jun-Hyeok Park, Hyemi Jeon, Taegyu Lim, Hayoung Song, Han Kyung Kim, Hyokyung Lee, Ji Hye Tak
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Publication number: 20230210886Abstract: The present disclosure relates to a pharmaceutical composition for preventing or treating inflammatory bowel disease, comprising an intestinal organoid and a TNF? inhibitor. The combination use of the intestinal organoid and TNF? inhibitor according to the present disclosure can alleviate symptoms of inflammatory bowel disease such as weight loss, diarrhea, and bloody stool, and can inhibit fibrosis of the intestinal mucosa due to inflammation. In particular, when the intestinal organoid and the anti-inflammatory TNF? inhibitor are used in combination, the therapeutic effect is significantly superior to that of multiple administrations of the TNF? inhibitor, and thus it can be usefully used as an agent for preventing or treating inflammatory bowel disease.Type: ApplicationFiled: September 16, 2022Publication date: July 6, 2023Applicant: ORGANOIDSCIENCES LTD.Inventors: Jun-Hyeok PARK, Hyemi JEON, Taegyu LIM, Hayoung SONG, Han Kyung KIM, Hyokyung LEE, Ji Hye TAK
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Patent number: 11499465Abstract: A vehicle exhaust gas purification system and a control method thereof that may effectively remove nitrogen oxides in an exhaust gas even in a cold state, which is the initial stage of an engine starting, is disclosed.Type: GrantFiled: March 9, 2021Date of Patent: November 15, 2022Assignees: Hyundai Motor Company, KIA Motors CorporationInventors: Hyokyung Lee, Chang Hwan Kim
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Publication number: 20220347657Abstract: Disclosed is a catalyst for removing saturated hydrocarbon including an acidic support including porous alumina (Al2O3) and having higher acidity than alumina, and an active metal including platinum (Pt) and supported on the acidic support.Type: ApplicationFiled: November 3, 2021Publication date: November 3, 2022Inventors: Yoon Sang Nam, Hyokyung Lee, Seunghyo Noh
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Publication number: 20220305466Abstract: Disclosed are a NOx reducing catalyst including a carrier including a cerium-zirconium composite oxide, and the palladium supported on the carrier. The catalyst includes palladium in an amount of about 1 wt% to about 5 wt% based on the total weight of the catalyst.Type: ApplicationFiled: November 12, 2021Publication date: September 29, 2022Inventors: Hyokyung Lee, Dalyoung Yoon
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Patent number: 11125173Abstract: An exhaust gas purification system for vehicle includes: a housing disposed on an exhaust pipe to receive a exhaust gas discharged from an engine and to exhaust the exhaust gas passed rearward; a front end catalyst disposed in the housing to purify the exhaust gas flowing into the housing through a front end of the housing; a rear end catalyst disposed in the housing to purify the exhaust gas passing through the front end catalyst before the exhaust gas flows out to a rear end of the housing; and a controller connected to the exhaust pipe at a front end of the housing to control a concentration of unburned fuel contained in the exhaust gas flowing into the housing.Type: GrantFiled: August 26, 2019Date of Patent: September 21, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Hyokyung Lee, Chang Hwan Kim
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Publication number: 20210207514Abstract: An exhaust gas purification apparatus provided to purify the exhaust gas of an engine includes: an exhaust line through which exhaust gas discharged from the engine passes, a diesel oxidation catalyst (DOC) installed in the exhaust line to purify hydrocarbons (HC) and carbon monoxide (CO) in the exhaust gas, a urea injector for spraying a urea aqueous solution inside the exhaust line, and a selective catalyst reduction (SCR) for reducing nitrogen oxides (NOx) of exhaust gas that has passed through the DOC using the urea aqueous solution. In particular, the DOC includes a cerium-zirconium oxide (CeZrOx) catalyst.Type: ApplicationFiled: August 14, 2020Publication date: July 8, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Hyokyung Lee, Chang Hwan Kim, Jin Woo Choung
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Publication number: 20210189940Abstract: A vehicle exhaust gas purification system and a control method thereof that may effectively remove nitrogen oxides in an exhaust gas even in a cold state, which is the initial stage of an engine starting, is disclosed.Type: ApplicationFiled: March 9, 2021Publication date: June 24, 2021Applicants: Hyundai Motor Company, KIA Motors CorporationInventors: Hyokyung LEE, Chang Hwan KIM
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Patent number: 10883432Abstract: An exhaust gas purification system for vehicle provided on an exhaust pipe connected to an exhaust side of an engine for purifying an exhaust gas of the engine includes a housing mounted on the exhaust pipe, a front end catalyst incorporated in the housing to primarily purify the exhaust gas flowing into the housing through the front end portion of the housing, a rear end catalyst incorporated in the housing to secondarily purify the exhaust gas passing through the front end catalyst before the exhaust gas flows out to the rear end portion of the housing, and a controller connected to the exhaust pipe at a front end portion of the housing to control the concentration of unburned fuel contained in the exhaust gas according to temperature of exhaust gas flowing into the housing and speed of the vehicle.Type: GrantFiled: November 27, 2019Date of Patent: January 5, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Hyokyung Lee, Chang Hwan Kim
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Publication number: 20200386178Abstract: An exhaust gas purification system for vehicle provided on an exhaust pipe connected to an exhaust side of an engine for purifying an exhaust gas of the engine includes a housing mounted on the exhaust pipe, a front end catalyst incorporated in the housing to primarily purify the exhaust gas flowing into the housing through the front end portion of the housing, a rear end catalyst incorporated in the housing to secondarily purify the exhaust gas passing through the front end catalyst before the exhaust gas flows out to the rear end portion of the housing, and a controller connected to the exhaust pipe at a front end portion of the housing to control the concentration of unburned fuel contained in the exhaust gas according to temperature of exhaust gas flowing into the housing and speed of the vehicle.Type: ApplicationFiled: November 27, 2019Publication date: December 10, 2020Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Hyokyung LEE, Chang Hwan KIM
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Publication number: 20200271067Abstract: An exhaust gas purification system for vehicle includes: a housing disposed on an exhaust pipe to receive a exhaust gas discharged from an engine and to exhaust the exhaust gas passed rearward; a front end catalyst disposed in the housing to purify the exhaust gas flowing into the housing through a front end of the housing; a rear end catalyst disposed in the housing to purify the exhaust gas passing through the front end catalyst before the exhaust gas flows out to a rear end of the housing; and a controller connected to the exhaust pipe at a front end of the housing to control a concentration of unburned fuel contained in the exhaust gas flowing into the housing.Type: ApplicationFiled: August 26, 2019Publication date: August 27, 2020Inventors: Hyokyung LEE, Chang Hwan Kim
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Patent number: 10711719Abstract: A method of controlling activation of light off time of a catalyst which controls exhaust emission from an engine of a vehicle may include determining whether the vehicle is in a cold start condition; determining a deterioration level of the catalyst by use of a temperature sensor; and retarding a spark timing according to the deterioration level of the catalyst and increasing a temperature of exhaust gas.Type: GrantFiled: October 25, 2017Date of Patent: July 14, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Hyokyung Lee, Cheol Beom Lim
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Publication number: 20200123957Abstract: Disclosed herein is a vehicle exhaust gas purification system and a control method thereof that may effectively remove nitrogen oxides in an exhaust gas even in a cold state. The control method may include a step of performing a rich control for controlling a concentration of non-combusted fuel contained in the exhaust gas flowing into the housing to be a rich fuel directly after the starting of the engine; a step of performing a lean control for controlling the concentration of the non-combusted fuel contained in the exhaust gas flowing into the housing to be a lean fuel; a step of determining a temperature of the exhaust gas flowing into the housing; and a step of performing a normal control for controlling the concentration of the non-combusted fuel contained in the exhaust gas flowing into the housing so that lean fuel and rich fuel are periodically repeated at regular intervals.Type: ApplicationFiled: August 13, 2019Publication date: April 23, 2020Inventors: Hyokyung LEE, Chang Hwan KIM
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Patent number: 10413868Abstract: A device for purifying exhaust gas may be provided to purify exhaust gas in an engine includes an exhaust line through which exhaust gas discharged from the engine passes, a diesel oxidation catalyst (DOC) that is disposed in the exhaust line to purify hydrocarbon (HC) and carbon monoxide (CO) of the exhaust gas, a urea injector that injects a urea aqueous solution into the exhaust line, and a selective catalyst reduction (SCR) that reduces nitrogen oxide of the exhaust gas passing through the DOC by use of the urea aqueous solution, in which the DOC includes an LTA zeolite catalyst.Type: GrantFiled: October 31, 2017Date of Patent: September 17, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Hyokyung Lee
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Patent number: 10376871Abstract: A device for purifying exhaust gas provided to purify exhaust gas in an engine, may include an exhaust line through which exhaust gas discharged from the engine passes, a NOx storage catalyst that is installed in the exhaust line to absorb a nitrogen oxide discharged from the exhaust gas, and detach an absorbed nitrogen oxide when a temperature of a catalyst is higher than a predetermined value, and a three way catalyst (TWC) arranged in rear of the NOx storage catalyst for reducing the nitrogen oxide detached from the NOx storage catalyst, wherein the NOx storage catalyst includes an LTA zeolite catalyst.Type: GrantFiled: July 19, 2017Date of Patent: August 13, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Yoon Sang Nam, Hyokyung Lee
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Publication number: 20190226377Abstract: An exhaust system according to an exemplary embodiment of the present invention includes a nitrogen oxide storing catalytic collector connected to an exhaust line and collecting a nitrogen oxide included an exhaust gas in a first temperature or less; a first selective catalytic reducer disposed at a rear portion of the nitrogen oxide storing catalytic collector and reducing a nitrogen oxide included in the exhaust gas; and a first urea injector disposed at the front side of the nitrogen oxide storing catalytic collector and supplying a urea solution when a temperature of the nitrogen oxide exceeds the first temperature.Type: ApplicationFiled: April 1, 2019Publication date: July 25, 2019Inventors: Hyokyung LEE, Chang Hwan KIM
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Patent number: 10287946Abstract: An exhaust system according to an exemplary embodiment of the present invention includes a nitrogen oxide storing catalytic collector connected to an exhaust line and collecting a nitrogen oxide included an exhaust gas in a first temperature or less; a first selective catalytic reducer disposed at a rear portion of the nitrogen oxide storing catalytic collector and reducing a nitrogen oxide included in the exhaust gas; and a first urea injector disposed at the front side of the nitrogen oxide storing catalytic collector and supplying a urea solution when a temperature of the nitrogen oxide exceeds the first temperature.Type: GrantFiled: November 23, 2016Date of Patent: May 14, 2019Assignee: HYUNDAI MOTOR COMPANYInventors: Hyokyung Lee, Chang Hwan Kim
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Publication number: 20180163651Abstract: A method of controlling activation of light of time of a catalyst which controls exhaust emission from an engine of a vehicle may include determining whether the vehicle is in a cold start condition; determining a deterioration level of the catalyst by use of a temperature sensor; and retarding a spark timing according to the deterioration level of the catalyst and increasing a temperature of exhaust gas.Type: ApplicationFiled: October 25, 2017Publication date: June 14, 2018Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Hyokyung LEE, Cheol Beom LIM
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Publication number: 20180133707Abstract: A device for purifying exhaust gas provided to purify exhaust gas in an engine, may include an exhaust line through which exhaust gas discharged from the engine passes, a NOx storage catalyst that is installed in the exhaust line to absorb a nitrogen oxide discharged from the exhaust gas, and detach an absorbed nitrogen oxide when a temperature of a catalyst is higher than a predetermined value, and a three way catalyst (TWC) arranged in rear of the NOx storage catalyst for reducing the nitrogen oxide detached from the NOx storage catalyst, wherein the NOx storage catalyst includes an LTA zeolite catalyst.Type: ApplicationFiled: July 19, 2017Publication date: May 17, 2018Applicants: Hyundai Motor Company, Kia Motors CorporationInventors: Yoon Sang NAM, Hyokyung LEE
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Publication number: 20180133652Abstract: A device for purifying exhaust gas may be provided to purify exhaust gas in an engine includes an exhaust line through which exhaust gas discharged from the engine passes, a diesel oxidation catalyst (DOC) that is disposed in the exhaust line to purify hydrocarbon (HC) and carbon monoxide (CO) of the exhaust gas, a urea injector that injects a urea aqueous solution into the exhaust line, and a selective catalyst reduction (SCR) that reduces nitrogen oxide of the exhaust gas passing through the DOC by use of the urea aqueous solution, in which the DOC includes an LTA zeolite catalyst.Type: ApplicationFiled: October 31, 2017Publication date: May 17, 2018Applicants: Hyundai Motor Company, Kia Motors CorporationInventor: Hyokyung Lee