Patents by Inventor Jae-Hun Jeong
Jae-Hun Jeong 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: 12290769Abstract: The present disclosure relates to a diester-based material production unit including a reaction device in which an esterification reaction of dicarboxylic acid and a primary alcohol is performed, a column in which the gas-liquid separation of the primary alcohol and the water introduced is performed, a heat exchanger installed on a gas phase line of the column to remove heat of the gas phase line, a flash drum in which separation of a liquid phase and a gas phase is performed in the mixture stream including the primary alcohol and the water, a condenser installed on the flash drum upper line, and a layer separator in which the layer separation of a mixture of a liquefied primary alcohol and water into an organic layer and an aqueous layer is performed, wherein one or more lines through which recirculated primary alcohol from the flash drum and the layer separator flows are connected to an upper portion of the column.Type: GrantFiled: July 2, 2020Date of Patent: May 6, 2025Assignee: LG Chem, Ltd.Inventors: Jae Hun Jeong, Sung Kyu Lee, Yeon Uk Choo, Hyoung Jun, Hyun Kyu Kim, Chan Hyu Jin, Jin Sung Park
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Patent number: 12275698Abstract: A diester-based material can be prepared continuously including a reaction part in which a total of n reaction units from a first reaction unit to an nth reaction unit are connected in series, the reaction unit including a reactor which esterifies dicarboxylic acid and alcohol, includes: esterifying dicarboxylic acid and alcohol in a reactor of the first reaction unit to produce a reaction product, and supplying a lower discharge stream including the reaction product to a reaction unit at a rear end, wherein an operating pressure of the reactor of the first reaction unit is 0.4 kg/cm2G to 5.5 kg/cm2G, an operating pressure is reduced from a reactor of any one reaction unit of reaction units from a second reaction unit to the nth reaction unit, and an operating temperature is increased from the reactor of the first reaction unit to the reactor of the nth reaction unit.Type: GrantFiled: August 20, 2021Date of Patent: April 15, 2025Assignee: LG CHEM, LTD.Inventors: Jae Hun Jeong, Sung Kyu Lee, Yeon Uk Choo, Song Hoon Lee, Hyoung Jun, Yun Gon Heo
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Publication number: 20250089172Abstract: A circuit board according to an embodiment comprises a first insulating layer; a first pattern layer disposed on an upper surface of the first insulating layer; a second insulating layer disposed on the upper surface of the first insulating layer and including a cavity; and a barrier layer disposed on a first pattern layer vertically overlapping with the cavity among the first pattern layers, wherein the upper surface of the first insulating layer includes: a first upper surface vertically overlapping a lower surface of the cavity, and a second upper surface that does not vertically overlap the lower surface of the cavity, wherein the first pattern layer includes: a first pattern part disposed on the first upper surface of the first insulating layer, and a second pattern part disposed on the second upper surface of the first insulating layer, wherein an upper surface of the first pattern part is exposed through the cavity without contacting the first and second insulating layers, and wherein the barrier layerType: ApplicationFiled: January 3, 2023Publication date: March 13, 2025Applicant: LG INNOTEK CO., LTD.Inventors: Eom Ji KIM, Jae Hun JEONG, Soo Min LEE
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Patent number: 12221412Abstract: The present disclosure relates to a method for continuously producing a dicarboxylate-based composition and a production system therefor, the method improving a production yield by optimizing process variables of each reactor of a reaction unit in which a plurality of reactors are connected in series.Type: GrantFiled: September 10, 2020Date of Patent: February 11, 2025Assignee: LG Chem, Ltd.Inventors: Yeon Uk Choo, Sung Kyu Lee, Jae Hun Jeong
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Publication number: 20250042835Abstract: The present invention relates to a reaction control method in which a conversion rate of a reaction may be predicted from a flow rate of a feed introduced into a reactor and a flow rate of product water generated in the reactor, and through which the conversion rate of the reactor may be easily controlled.Type: ApplicationFiled: September 5, 2024Publication date: February 6, 2025Applicant: LG CHEM, LTD.Inventors: Yeon Uk CHOO, Jae Hun JEONG, Sung Kyu LEE
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Publication number: 20250048557Abstract: A circuit board according to an embodiment includes a first insulating layer; and a second insulating layer disposed on an upper surface of the first insulating layer, wherein the second insulating layer includes a cavity, and the cavity has a planar shape including a plurality of convex parts convex toward an inner direction of the second insulating layer.Type: ApplicationFiled: December 9, 2022Publication date: February 6, 2025Inventors: Soo Min LEE, Jong Bae SHIN, Jae Hun JEONG, Ji Chul JUNG
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Publication number: 20250042269Abstract: An embodiment power control apparatus for a fuel cell vehicle includes a first relay connected to a fuel cell stack, a second relay selectively connected to an external charger, a converter connected to the first relay and the second relay, wherein the converter is configured to convert first electric power input thereto via the first relay into first demand electric power, convert second electric power input thereto via the second relay into second demand electric power, and supply the first demand electric power or the second demand electric power to a power consumption device, and a controller configured to control the first relay, the second relay, and the converter.Type: ApplicationFiled: November 9, 2023Publication date: February 6, 2025Inventors: Beom Sik Kim, Kyu Won Jeong, Tae Woo Kim, Jae Hun Jeong, Mun Soo Chung, Sang Don Lee
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Publication number: 20250040032Abstract: A circuit board according to an embodiment includes a first substrate layer; and a second substrate layer disposed on the first substrate layer and including a cavity, wherein the cavity of the second substrate layer includes a first part disposed adjacent to an upper surface of the second substrate layer and having a first inclination such that a width gradually decreases toward a lower surface of the second substrate layer; and a second part disposed below the first part adjacent to the lower surface of the second substrate layer and having a second inclination such that a width gradually decreases toward the lower surface of the second substrate layer, and the first inclination of the first part relative to a bottom surface of the cavity is greater than the second inclination of the second part relative to the bottom surface of the cavity, and a vertical length of the first part is different from a vertical length of the second part.Type: ApplicationFiled: August 10, 2022Publication date: January 30, 2025Inventors: Jong Bae SHIN, Moo Seong KIM, Soo Min LEE, Jae Hun JEONG
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Publication number: 20250031312Abstract: A printed circuit board according to an embodiment includes a first insulating layer, a second insulating layer disposed on the first insulating layer and including a cavity; and a pad disposed on the first insulating layer and having an upper surface exposed through the cavity; wherein the cavity includes a first part including a first inner wall; and a second part including a second inner wall under the first part; and wherein an inclination angle of the first inner wall is different from an inclination angle of the second inner wall.Type: ApplicationFiled: October 9, 2024Publication date: January 23, 2025Inventors: Jong Bae Shin, Soo Min Lee, Jae Hun Jeong
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Publication number: 20250024587Abstract: A circuit board according to an embodiment includes a first insulating layer; a first pattern layer disposed on an upper surface of the first insulating layer; and a second insulating layer disposed on the upper surface of the first insulating layer and an upper surface of the first pattern layer and including a cavity, wherein the upper surface of the first insulating layer includes a first upper surface corresponding to a lower surface of the cavity, and a second upper surface having a step difference from the first upper surface and not vertically overlapping the lower surface of the cavity, wherein the first pattern layer includes a first pattern part disposed on the first upper surface, and a second pattern part disposed on the second upper surface, and wherein a thickness of the first pattern part is smaller than a thickness of the second pattern part.Type: ApplicationFiled: November 29, 2022Publication date: January 16, 2025Applicant: LG INNOTEK CO., LTD.Inventors: Jong Bae SHIN, Soo Min LEE, Jae Hun JEONG, Ji Chul JUNG
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Publication number: 20240407103Abstract: A circuit board according to an embodiment includes a first insulating layer; and a second insulating layer disposed on the first insulating layer and including a cavity; wherein the second insulating layer includes a lower surface of the cavity positioned higher than an upper surface of the first insulating layer, wherein the lower surface of the cavity includes: a plurality of first portions, and a plurality of second portions provided between the plurality of first portions and having a height different from that of the plurality of first portions, and wherein a height difference between a portion having a highest height and a portion having a lowest height of the plurality of first portions is 1 ?m or less.Type: ApplicationFiled: December 23, 2022Publication date: December 5, 2024Inventors: Chae Young YOU, Soo Min LEE, Jae Hun JEONG
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Patent number: 12144116Abstract: A printed circuit board according to an embodiment includes a first insulating layer, a second insulating layer disposed on the first insulating layer and including a cavity; and a pad disposed on the first insulating layer and having an upper surface exposed through the cavity; wherein the cavity includes a first part including a first inner wall; and a second part including a second inner wall under the first part; and wherein an inclination angle of the first inner wall is different from an inclination angle of the second inner wall.Type: GrantFiled: October 21, 2020Date of Patent: November 12, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Jong Bae Shin, Soo Min Lee, Jae Hun Jeong
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Patent number: 12122747Abstract: The present disclosure relates to a continuous production system and a diester-material production unit included therein, wherein the production unit includes a reaction device in which an esterification reaction of dicarboxylic acid and a primary alcohol is performed, a column in which gas-liquid separation of the primary alcohol and the water introduced is performed, a heat exchange device for recovering heat of a gas phase line of the column, a condenser installed at a rear end of the heat exchange device and liquefying a mixture of a gas-phase primary alcohol and water, and a layer separator in which the layer separation of a mixture of a liquefied primary alcohol and water is performed, wherein the heat exchange device includes one or more of a first heat exchanger for performing heat exchange with a raw material feed line of the reaction device, a second heat exchanger for performing heat exchange with a line through which a low temperature stream flows in a process, and a third heat exchanger for perfoType: GrantFiled: July 2, 2020Date of Patent: October 22, 2024Assignee: LG Chem, Ltd.Inventors: Jae Hun Jeong, Sung Kyu Lee, Yeon Uk Choo, Seok Goo Lee
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Publication number: 20240336170Abstract: A walk-in apparatus for a vehicle seat includes a walk-in bracket rotatably coupled to a crossbar of a cushion frame and operable to release a fixing member by contacting the fixing member of a seat rail; a compensator bracket operably connected to the walk-in bracket through a hinge, the compensator bracket also being connected to a walk-in cable; and a compensator spring configured to support the walk-in bracket and the compensator bracket, rotate at least one of the walk-in bracket and the compensator bracket, and operate in such a manner as to return the compensator bracket. Even when the walk-in cable is released due to a seatback rebound phenomenon during a walk-in operation, the walk-in bracket maintains a pressing state of the fixing member to maintain continuously an unlocking state of the seat rail, allowing the vehicle seat to move forward smoothly to enable a walk-in operation.Type: ApplicationFiled: September 25, 2023Publication date: October 10, 2024Applicants: Hyundai Motor Company, Kia Corporation, Hyundai Transys Inc., DAS CO., LTDInventors: Mu Young Kim, Jun Hwan Lee, Jun Young Heo, Ho Suk Jung, Hyeok Seung Lee, Keun Gwack, Sang Do Park, Chan Ho Jung, Jae Hun Jeong, Sang Soo Lee, Sai Youn Jung, Seon Ho Park, Jun Hyuk Park, Jae Yong Jang, Jun Sik Hwang, Joong Geol Gug, Woo Ryang Kim, Jai Wha Choi, Gil Hwan Ryu, So Yun Kim
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Patent number: 12084413Abstract: The present disclosure relates to a continuous production method of a diester-based material in a continuous production process comprising a reaction part in which a total of N reaction units from a first reaction unit to an N-th reaction unit are connected in series. The method comprising the step of feeding dicarboxylic acid and a primary alcohol, wherein the feed of the primary alcohol is divided into front-end feed of being fed into a first reaction unit and rear-end feed of being fed into one or more reaction units selected among from a second reaction unit to an N-th reaction unit, wherein the amount of the rear-end feed is 5 to 80 wt % based on the total feed amount of the primary alcohol into a reaction part, and the N is an integer of 3 to 6.Type: GrantFiled: July 2, 2020Date of Patent: September 10, 2024Assignee: LG Chem, Ltd.Inventors: Jae Hun Jeong, Sung Kyu Lee, Yeon Uk Choo, Hyun Kyu Kim, Seok Goo Lee
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Publication number: 20240282685Abstract: A circuit board according to an embodiment includes a first insulating layer, a first circuit pattern layer disposed on the first insulating layer; and a second insulating layer disposed on the first insulating layer and the first circuit pattern layer, wherein the second insulating layer includes a first region including a cavity and a second region excluding the first region, wherein the first region of the second insulating layer includes a first portion concave toward a lower surface of the second insulating layer, and a second portion convex toward an upper surface of the second insulating layer.Type: ApplicationFiled: August 10, 2022Publication date: August 22, 2024Applicant: LG INNOTEK CO., LTD.Inventors: Jae Hun JEONG, Jong Bae SHIN, Soo Min LEE
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Publication number: 20240237233Abstract: A circuit board according to an embodiment includes a first insulating layer; a second insulating layer disposed on the first insulating layer and including a cavity; a pad disposed on the first insulating layer and having a top surface exposed through the cavity; wherein the cavity of the second insulating layer includes: a bottom surface positioned higher than the top surface of the first insulating layer; and an inner wall extending from the bottom surface, wherein the inner wall includes: a first inner wall extending from the bottom surface and having a first inclination angle; and a second inner wall extending from the first inner wall and having a second inclination angle different from the first inclination angle.Type: ApplicationFiled: April 26, 2021Publication date: July 11, 2024Inventors: Jong Bae SHIN, Soo Min LEE, Jae Hun JEONG
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Publication number: 20240138077Abstract: A circuit board according to an embodiment includes a first insulating layer; a second insulating layer disposed on the first insulating layer and including a cavity; a pad disposed on the first insulating layer and having a top surface exposed through the cavity; wherein the cavity of the second insulating layer includes: a bottom surface positioned higher than the top surface of the first insulating layer; and an inner wall extending from the bottom surface, wherein the inner wall includes: a first inner wall extending from the bottom surface and having a first inclination angle; and a second inner wall extending from the first inner wall and having a second inclination angle different from the first inclination angle.Type: ApplicationFiled: April 25, 2021Publication date: April 25, 2024Inventors: Jong Bae SHIN, Soo Min LEE, Jae Hun JEONG
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Publication number: 20240120243Abstract: A circuit board according to an embodiment includes a first insulating layer; a second insulating layer disposed on the first insulating layer and including a cavity; and a plurality of pads disposed on the first insulating layer and having top surfaces exposed through the cavity; wherein the cavity of the second insulating layer includes: a bottom surface positioned higher than a top surface of the first insulating layer; and an inner wall extending from the bottom surface, wherein the inner wall is perpendicular to top or bottom surface of the second insulating layer, wherein the bottom surface of the cavity includes: a first bottom surface positioned lower than a top surface of the pad and positioned outside an arrangement region of the plurality of pads; and a second bottom surface positioned lower than the top surface of the pad and positioned inside the arrangement region of the plurality of pads, and wherein a height of the first bottom surface is different from a height of the second bottom surface.Type: ApplicationFiled: April 26, 2021Publication date: April 11, 2024Inventors: Jong Bae SHIN, Moo Seong KIM, Soo Min LEE, Jae Hun JEONG
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Publication number: 20240109419Abstract: The present disclosure relates to a DC-DC converter, a vehicle, and a control method including the same, and more particularly, to a DC-DC converter, a vehicle, and a control method including the same capable of effectively detecting and responding to an interlock failure of a connector.Type: ApplicationFiled: May 9, 2023Publication date: April 4, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Jae Hun JEONG, Mun Soo CHUNG, Kyu Won JEONG, Tae Woo KIM, Jong Dae KIM, Beom Sik KIM, Sang Don LEE