Patents by Inventor Dong Kyu Lee
Dong Kyu 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: 20230389350Abstract: According to an embodiment of the present disclosure, an organic light emitting diode includes: a first electrode; a second electrode overlapping the first electrode; an emission layer positioned between the first electrode and the second electrode; an electron injection layer positioned between the emission layer and the second electrode; and an electron injection delay layer positioned between the emission layer and the electron injection layer, wherein the electron injection layer includes a first material made of a metal and a second material made of a metal halide, and the electron injection delay layer has a thickness of about 20 ? to about 140 ?.Type: ApplicationFiled: August 11, 2023Publication date: November 30, 2023Inventors: Dong Chan Kim, Won Jong Kim, Dong Kyu Seo, Ji Hye Lee, Sang Hoon Yim, Won Suk Han
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Publication number: 20230381900Abstract: The present invention relates to a turntable-type probe pin laser bonding apparatus wherein a pin gripper mounted on four surfaces automatically laser-bonds a probe pin to a probe card while continuously rotating pin grippers in a turntable method. More particularly, the present invention relates to a multi-axis gripper unit of a turntable type probe pin laser bonding apparatus that can continuously process the pickup, dipping, and laser bonding of probe pins while freely moving linearly or rotationally in multi-axis directions, for example, the X-axis, Y-axis, X?-axis, Y?-axis, and the gripper axis, with high precision in micrometer units by being applied to the laser bonding unit.Type: ApplicationFiled: October 28, 2022Publication date: November 30, 2023Inventors: Jae Joon CHOI, Byung Roc KIM, Tae Kyu KIM, Dong Sik KIM, Jun Gi LEE, Sang Won LEE
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Publication number: 20230389358Abstract: A display apparatus can include a first thin-film transistor including a first active layer having a first polysilicon material, a first gate electrode overlapping the first active layer, a first electrode and a second electrode; a second thin-film transistor including a second active layer having an oxide semiconductor, a second gate electrode overlapping the second active layer, a third electrode and a fourth electrode; and a first emitting electrode of a light emitting element electrically connected to the second electrode of the first thin-film transistor. Also, one end of the first active layer having the first polysilicon material is electrically connected to one or the other end of the second active layer having the oxide semiconductor.Type: ApplicationFiled: August 8, 2023Publication date: November 30, 2023Applicant: LG Display Co., Ltd.Inventors: Seong-Pil CHO, Dong-Yup KIM, Kyung-Mo SON, Sang-Soon NOH, Jun-Seuk LEE, Yong-Bin KANG, Kye-Chul CHOI, Sung-Ho MOON, Sang-Gul LEE, Byeong-Keun KIM, Kyoung-Soo LEE, Hyun-Gyo JEONG, Jin-Kyu ROH, Jung-Doo JIN, Ki-Hyun KWON, Hee-Jin JUNG, Jang-Dae KIM, Won-Ho SON, Chan-Ho KIM
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Publication number: 20230384937Abstract: The present technology relates to an electronic device. According to the present technology, a memory controller may include a latency monitor and an operation controller. The latency monitor may count an over-latency count value representing a number of over-latencies exceeding a reference value among latencies for requests from a host during each of a plurality of periods, calculate gaps which are difference values between the over-latency count values of the plurality of periods, and generate latency information including the over-latency count values and the gaps. The operation controller may determine, based on the latency info oration, whether each gap between at least two target periods among the plurality of periods exceeds a threshold value, and delay a response to the requests according to a determination result.Type: ApplicationFiled: December 14, 2022Publication date: November 30, 2023Inventors: Seon Ju LEE, Seung Geol Baek, Jae Hyun Yoo, Dong Kyu Lee
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Publication number: 20230386396Abstract: An electroluminescent display device can include a light emitting element; and a pixel driving circuit for applying a driving current to the light emitting element, in which the pixel driving circuit includes a first transistor connected to the first, second and third nodes; a second transistor connected between the third node and the second node; a third transistor connected between the first node and a data line; a fourth transistor connected between the first node and a first driving voltage line; a fifth transistor connected between the second node and a fourth node; a seventh transistor connected between the fourth node and a reset voltage line, and a storage capacitor disposed between the first driving voltage line and the third node.Type: ApplicationFiled: August 8, 2023Publication date: November 30, 2023Applicant: LG Display Co., Ltd.Inventors: Dong Kyu LEE, Woo Kyu SANG, Hyoung Sik KIM
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Patent number: 11825599Abstract: The present invention relates to an electrical device including a printed circuit board (PCB) accommodated in a case, and more particularly, to an air-pocket prevention PCB, an air-pocket prevention PCB module, an electrical device including the same, and a manufacturing method of an electrical device including the same with improved fluidity of a resin material so that air pockets that may occur when the case is filled with the resin material are easily discharged and the resin material may be evenly filled inside the case.Type: GrantFiled: October 13, 2021Date of Patent: November 21, 2023Assignee: SOLUM CO., LTD.Inventors: Jun Kyu Lee, Jeong Man Han, Su Young Kim, Yong Woo Kang, Sang Keun Ji, Dong Kyun Ryu
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Patent number: 11824190Abstract: Disclosed are a cathode material for a lithium secondary battery and a method of manufacturing the same. For instance, the lithium secondary battery may have a high energy density by using only a single cathode material. Particularly, the cathode material for a lithium secondary battery includes a Li—[Mn—Ti]—Al—O-based cathode active material; and a carbon nanotube (CNT) attached to the surface of the cathode active material in an acid-treated state to be formed as a composite.Type: GrantFiled: July 14, 2020Date of Patent: November 21, 2023Assignees: Hyundai Motor Company, Kia Corporation, Industry Academy Cooperation Foundation of Sejong UniversityInventors: Seung Min Oh, Ik Kyu Kim, Yeol Mae Yeo, Sang Mok Park, Yoon Sung Lee, Nam Hyeong Kim, Ji Eun Lee, Dong Jun Kim, Seung Taek Myung, Ji Ung Choi
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Patent number: 11818937Abstract: An organic light emitting display is provided. The organic light emitting display includes a first base substrate; a plurality of organic light emitting diodes disposed on the first base substrate; an encapsulation layer disposed on the organic light emitting diodes; and a plurality of first color conversion filters disposed on the encapsulation layer. The encapsulation layer includes: a first sub-inorganic layer disposed on the organic light emitting diodes; a second sub-inorganic layer disposed on the first sub-inorganic layer and having a refractive index different from that of the first sub-inorganic layer; an organic layer disposed on the second sub-inorganic layer; and a third sub-inorganic layer disposed on the organic layer.Type: GrantFiled: December 6, 2021Date of Patent: November 14, 2023Assignee: Samsung Display Co., Ltd.Inventors: Yo Han Kim, Yong Tack Kim, Yoon Hyeung Cho, Jong Jin Park, Deok Chan Yoon, Yun Kyu Lee, Dong Uk Choi
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Patent number: 11809724Abstract: A memory controller that controls a memory device including a plurality of memory blocks allocated to a plurality of zones for storing data is provided. The memory controller comprises a plurality of processing cores controlling data operations in the plurality of zones in the memory device; and an external interface unit in communication with an external device and configured to receive, from the external device, a write request requesting to perform a write operation on a first zone in the memory device, the external interface unit configured to identify a first processing core for controlling the first zone and determine a second core to perform the write operation based on a number of open zones controlled by the first core and having an open state indicating a capability to execute a program operation.Type: GrantFiled: March 7, 2022Date of Patent: November 7, 2023Assignee: SK HYNIX INC.Inventors: Dong Kyu Lee, Seung Geol Baek, Jae Hyun Yoo, Seon Ju Lee
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Publication number: 20230350824Abstract: A Peripheral Component Interconnect express (PCIe) device includes a Direct Memory Access (DMA) device including a plurality of functions; and a PCIe interface device for performing communication between a host and the DMA device. The PCIe interface device includes a reset operation controller for, when a plurality of reset signals are received from the host, grouping operations, which are the same as one another among reset operations respectively corresponding to the plurality of reset signals, determining a processing order of the reset operations, and performing the reset operations according to the processing order.Type: ApplicationFiled: October 11, 2022Publication date: November 2, 2023Inventors: Ki Sung KIM, Wun Mo Yang, Gun Woo Yeon, Dong Kyu Lee
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Patent number: 11800929Abstract: An embodiment of the present invention provides a pull-out system comprising: at least two slide rails each having a fixed rail, a middle rail slidably arranged on the fixed rail, and a movable rail slidably arranged on the middle rail; and a synchronization means for synchronizing the movement of the movable rail, wherein the synchronization means comprises a roller unit, a synchronization bar connected to the roller unit, and a deflectable element having an end portion fixe to the roller unit and an opposite end portion connected to the movable rail, and the movable rail is configured to move as much as the amount of rotation of the roller unit.Type: GrantFiled: March 11, 2020Date of Patent: October 31, 2023Assignee: SEGOS CO., LTD.Inventors: Doo Myun Lee, Sung Joon Kang, In Suk Ra, Jung Kyu Lim, Sung Woo Kim, Jae Hyuk Lim, Dong Wook Kim
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Patent number: 11801496Abstract: The present disclosure relates to a catalyst for preparing 1,2-pentanediol from furfural and/or furfuryl alcohol, and more particularly to a catalyst, which is configured such that a catalytically active metal containing both at least one transition metal and tin (Sn) is supported on a basic support and is capable of increasing reaction selectivity for 1,2-pentanediol, and a method of preparing 1,2-pentanediol using the same.Type: GrantFiled: July 4, 2019Date of Patent: October 31, 2023Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Young Kyu Hwang, Do Young Hong, Jaesung Kwak, Pandharinath Pravin Upare, Dong Won Hwang, Jung Ho Lee, Jong-San Chang, Joung-mo Cho, U Hwang Lee, Kyung Ho Cho, Su Kyung Lee
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Publication number: 20230330975Abstract: The present application relates to an asymmetry composite material and a method for preparing the same, which provides a composite material comprising a metal porous body (metal foam or the like) and a polymer component, and provides a method for preparing a composite material, wherein the polymer component is formed in an asymmetrical structure on both sides of the metal porous body (metal foam or the like), and a composite material prepared in such a manner.Type: ApplicationFiled: June 19, 2023Publication date: October 19, 2023Inventors: JONG MIN SHIN, Dong Woo YOO, Jin Kyu LEE
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Patent number: 11791082Abstract: A magnetic nano oscillating device, according to an embodiment of the present invention, comprises: a ferromagnetic layer disposed on a substrate; a non-magnetic conductive layer laminated on the ferromagnetic layer; an antiferromagnetic layer (or a ferrimagnetic layer) laminated on the non-magnetic conductive layer; and first and second electrodes respectively contacting both side surfaces of the ferromagnetic layer and the non-magnetic conductive layer.Type: GrantFiled: July 27, 2020Date of Patent: October 17, 2023Assignee: Korea University Research and Business FoundationInventors: Kyung-Jin Lee, Byong Guk Park, Dong-Kyu Lee
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Publication number: 20230323221Abstract: The present disclosure provides a method of treating waste plastic pyrolysis oil. The method includes a first step of washing waste plastic pyrolysis oil with water and then removing moisture; a second step of mixing the waste plastic pyrolysis oil from which the moisture is removed and a sulfur source to prepare a mixed oil; a third step of hydrotreating the mixed oil with hydrogen gas in the presence of a hydrotreating catalyst; a fourth step of separating the hydrotreated mixed oil into a liquid stream and a gas stream to obtain liquid pyrolysis oil; and a fifth step of recovering hydrogen gas from the separated gas stream and recycling the recovered hydrogen gas to the third step.Type: ApplicationFiled: March 31, 2023Publication date: October 12, 2023Inventors: Yong Woon Kim, Byoung Kyu Kwak, Ja Cheol Koo, Dong Keun Kim, Young Seo Park, Joo Won Park, Byung Kook Ahn, Yun Hee Lee, Jae Heum Jung
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Publication number: 20230323222Abstract: The present disclosure provides a method of treating waste plastic pyrolysis oil. The method includes a first step of washing waste plastic pyrolysis oil with water and then removing moisture; a second step of mixing the waste plastic pyrolysis oil from which the moisture is removed and a sulfur source to prepare a mixed oil; a third step of hydrotreating the mixed oil with hydrogen gas in the presence of a hydrotreating catalyst; a fourth step of separating the hydrotreated mixed oil into a liquid stream and a gas stream to obtain liquid pyrolysis oil; and a fifth step of recovering hydrogen gas from the separated gas stream and recycling the recovered hydrogen gas to the third step.Type: ApplicationFiled: May 30, 2023Publication date: October 12, 2023Inventors: Yong Woon Kim, Byoung Kyu Kwak, Ja Cheol Koo, Dong Keun Kim, Young Seo Park, Joo Won Park, Byung Kook Ahn, Yun Hee Lee, Jae Heum Jung
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Patent number: 11780006Abstract: The present application provides a method for manufacturing a metal foam. The present application can provide a method for manufacturing a metal foam, which is capable of forming a metal foam comprising uniformly formed pores and having excellent mechanical properties as well as the desired porosity, and a metal foam having the above characteristics. In addition, the present application can provide a method capable of forming a metal foam in which the above-mentioned physical properties are ensured, while being in the form of a thin film or sheet, within a fast process time, and such a metal foam.Type: GrantFiled: November 29, 2017Date of Patent: October 10, 2023Assignee: LG CHEM, LTD.Inventors: Dong Woo Yoo, Jin Kyu Lee, So Jin Kim
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Patent number: 11781358Abstract: Proposed is a hinge device having tension maintaining function, the hinge device including: a winding member affixed to a main body of a mounted structure having an inner space formed therein; a hinge member affixed to a door that opens or closes the inner space and mounted on the winding member so as to enable the door to be pivotable; and a tension member having one end affixed to the winding member and the other end affixed to the hinge member, such that the tension member transmits a tension to the door when opening and closing the door.Type: GrantFiled: June 25, 2020Date of Patent: October 10, 2023Assignee: SEGOS CO., LTD.Inventors: Doo Myun Lee, Sung Joon Kang, In Suk Ra, Jung Kyu Lim, Dong Wook Kim
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Patent number: 11784260Abstract: A semiconductor device includes a first transistor having a first threshold voltage, and including first channels, first source/drain layers connected to opposite sidewalls of the first channels, and a first gate structure surrounding the first channels and including a first gate insulation pattern, a first threshold voltage control pattern, and a first workfunction metal pattern sequentially stacked. The semiconductor device includes a second transistor having a second threshold voltage greater than the first threshold voltage, and including second channels, second source/drain layers connected to opposite sidewalls of the second channels, and a second gate structure surrounding the second channels and including a second gate insulation pattern, a second threshold voltage control pattern, and a second workfunction metal pattern sequentially stacked. A thickness of the second threshold voltage control pattern is equal to or less than a thickness of the first threshold voltage control pattern.Type: GrantFiled: July 12, 2022Date of Patent: October 10, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae-Jung Kim, Dong-Soo Lee, Sang-Yong Kim, Jin-Kyu Jang, Won-Keun Chung, Sang-Jin Hyun
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Patent number: D1003234Type: GrantFiled: August 18, 2021Date of Patent: October 31, 2023Inventors: Hyeon-Kyu Kim, Gi-Dong Park, Jong-Kyu Ahn, Kyu-Heok Yoon, Young-Won Yun, Dong-Geun Lee, Seong-Ju Lee, Jae-Ki Lee