Patents by Inventor Heechang Kim
Heechang 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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Patent number: 12251856Abstract: A complex minute cutting apparatus for a superabsorbent hydrogel is disclosed. The complex minute cutting apparatus includes: a barrel body in which a transfer space through which a hydrogel is transferred is formed and a discharge part is formed at a side surface thereof; a transfer unit installed in the barrel body to transfer the hydrogel in the transfer space; and a plurality of cutting modules installed in the transfer unit to pulverize the hydrogel and discharging it to an outside of the discharge unit in a cut state.Type: GrantFiled: November 19, 2020Date of Patent: March 18, 2025Assignee: LG CHEM, LTD.Inventors: Jinuk Choi, Heechang Woo, Gicheul Kim, Yoon Jae Min
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Patent number: 12256636Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including a first layer, wherein the first electrode has a work function value of about ?5.5 eV to about ?6.1 eV, and the interlayer includes a second layer doped with a non-lead-based perovskite compound.Type: GrantFiled: December 7, 2021Date of Patent: March 18, 2025Assignee: Samsung Display Co., Ltd.Inventors: Heechang Yoon, Dongchan Kim, Yoonseok Ka, Jiyoung Moon, Haemyeong Lee, Yoonhyeung Cho
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Patent number: 12248338Abstract: A display apparatus includes: a display panel; a first pattern layer on one surface of the display panel; and a second pattern layer facing the one surface with the first pattern layer interposed therebetween, wherein: the first pattern layer comprises a plurality of first patterns each having a closed line shape comprising a first opening; the second pattern layer comprises a plurality of second patterns each having a closed line shape comprising a second opening; on the one surface, each of the first pattern layer and the second pattern layer has a deformation rate which is smaller in a direction perpendicular to a tensile direction than in the tensile direction; and on the one surface, the first openings overlap portions of the second patterns.Type: GrantFiled: February 3, 2023Date of Patent: March 11, 2025Assignees: Samsung Display Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Jaeho Ahn, Taewoong Kim, Jong-Hyun Ahn, Beomjin Kim, Heechang Shin, Jinyeong Choe
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Publication number: 20240237224Abstract: A method of manufacturing an electronic device includes providing a mold with a first opening defined therein and including a projection portion disposed in the first opening, forming, in the first opening, a first layer including a first material through an inkjet printing method, disposing the mold on a display panel in a way such that the first opening faces the display panel, and forming a display module by removing the mold. The display module is provided with a second opening defined therein and corresponding to the projection portion.Type: ApplicationFiled: August 8, 2023Publication date: July 11, 2024Inventors: SHINYA ONOUE, EUNJOONG MUN, HYEON DEUK HWANG, JUNGWOOK KIM, HEECHANG KIM, Kyounghee PARK, JIYUN BANG
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Publication number: 20240138072Abstract: A method of manufacturing an electronic device includes providing a mold with a first opening defined therein and including a projection portion disposed in the first opening, forming, in the first opening, a first layer including a first material through an inkjet printing method, disposing the mold on a display panel in a way such that the first opening faces the display panel, and forming a display module by removing the mold. The display module is provided with a second opening defined therein and corresponding to the projection portion.Type: ApplicationFiled: August 7, 2023Publication date: April 25, 2024Inventors: SHINYA ONOUE, EUNJOONG MUN, HYEON DEUK HWANG, JUNGWOOK KIM, HEECHANG KIM, Kyounghee PARK, JIYUN BANG
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Publication number: 20240040904Abstract: A display device includes: a display panel including a hole area, a first area adjacent to the hole area, and a second area other than the hole area and the first area; a first cover layer under the display panel, defining a first opening in the hole area, and overlapping the first area and the second area; and a second cover layer under the first cover layer, defining a second opening in the hole area, overlapping the first area and the second area, and including a groove defined along a boundary between the first area and the second area.Type: ApplicationFiled: May 17, 2023Publication date: February 1, 2024Inventors: JUNGWOOK KIM, HEECHANG KIM, EUNJOONG MUN, Kyounghee PARK, JIYUN BANG, HYEON DEUK HWANG
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Patent number: 11458721Abstract: A method for separating a window includes providing a display device including a display panel, a window disposed on the display panel and including a color layer. An adhesive layer is disposed between the display panel and the window. Heat is applied to the display device. The method includes inserting a disassembling stick between the display panel and the window to separate an edge of the display panel from the window. The method includes cooling the display device. The method includes separating the display panel and the window from each other.Type: GrantFiled: October 21, 2020Date of Patent: October 4, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jongman Bae, Heechang Kim, Chang-mo Park, Jinwook Yang, Soyeon Eom
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Publication number: 20210070030Abstract: A method for separating a window includes providing a display device including a display panel, a window disposed on the display panel and including a color layer. An adhesive layer is disposed between the display panel and the window. Heat is applied to the display device. The method includes inserting a disassembling stick between the display panel and the window to separate an edge of the display panel from the window. The method includes cooling the display device. The method includes separating the display panel and the window from each other.Type: ApplicationFiled: October 21, 2020Publication date: March 11, 2021Inventors: Jongman Bae, Heechang Kim, Chang-mo Park, Jinwook Yang, Soyeon Eom
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Patent number: 10836151Abstract: A method for separating a window includes providing a display device including a display panel, a window disposed on the display panel and including a color layer. An adhesive layer is disposed between the display panel and the window. Heat is applied to the display device. The method includes inserting a disassembling stick between the display panel and the window to separate an edge of the display panel from the window. The method includes cooling the display device. The method includes separating the display panel and the window from each other.Type: GrantFiled: November 1, 2018Date of Patent: November 17, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jongman Bae, Heechang Kim, Chang-mo Park, Jinwook Yang, Soyeon Eom
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Publication number: 20190255581Abstract: A window panel recycling equipment may include a first cleaning pad assembly, a first driving member rotating the first cleaning pad assembly, and a cleaning solution supplying member supplying a cleaning solution to the first cleaning pad assembly. The first cleaning pad assembly may include a first rotating member coupled to the first driving member and a first cleaning pad coupled to the first rotating member. The first cleaning pad may have a cylindrical shape and may have a plurality of pores defined therein.Type: ApplicationFiled: February 19, 2019Publication date: August 22, 2019Inventors: Jinwook YANG, Heechang KIM, Chang-mo PARK, Jongman BAE, Soyeon EOM, Bongkee LEE, Hyoungyoul KIM
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Publication number: 20190210351Abstract: A method for separating a window includes providing a display device including a display panel, a window disposed on the display panel and including a color layer. An adhesive layer is disposed between the display panel and the window. Heat is applied to the display device. The method includes inserting a disassembling stick between the display panel and the window to separate an edge of the display panel from the window. The method includes cooling the display device. The method includes separating the display panel and the window from each other.Type: ApplicationFiled: November 1, 2018Publication date: July 11, 2019Inventors: Jongman BAE, Heechang KIM, Chang-mo PARK, Jinwook YANG, Soyeon EOM
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Patent number: 8908530Abstract: A system and method for optimizing the efficiency of data sharing among a set of radio nodes in a radio environment is provided. The technique includes identifying a data unit and assigning it a class, identifying a connectivity type, computing a significance factor based on connectivity type and assigned class, mapping the significance factor to a priority factor, and scheduling output of the data unit based on the priority factor. A scheduler algorithm can be used for scheduling output. The class can be assigned based on which nodes of the set of radio nodes possess copies of the data unit at a given time. An arbitration process can be used to determine the priority factor. A significance factor weighting algorithm, based on how many nodes will be receiving the data and on how much a node needs the data, can be used to determine the significance factor.Type: GrantFiled: August 12, 2010Date of Patent: December 9, 2014Assignee: TTI Inventions C LLCInventors: Richard Lau, Heechang Kim, Bruce Siegell
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Patent number: 8615263Abstract: Various embodiments of the present invention relate to wireless network management. One specific example relates to efficient radio frequency (RF) spectrum management involving multiple mobile vehicles, whereby a system and/or a method of the invention achieves greatly improved spectral efficiency in the assignment of frequency bands to communications channels between the vehicles and/or stationary ground stations. Other examples of the present invention provide systems and methods to analyze the RF emissions resulting from the motion of transmitters and/or receivers through airspace with the help of five-dimensional quanta of space (x, y, z), time and frequency to assign frequency bands to test plans (including previously-validated test plan(s) and/or to-be-validated test plan(s)). In one specific example, the analysis is directed to the assignment of frequency bands with and without reuse.Type: GrantFiled: October 31, 2011Date of Patent: December 24, 2013Assignee: Telcordia Technologies, Inc.Inventors: Phiroz H. Madon, Anthony Triolo, Carol C. Martin, HeeChang Kim, Gregory P. Pollini, Achilles Kogiantis
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Publication number: 20120282962Abstract: Various embodiments of the present invention relate to wireless network management. One specific example relates to efficient radio frequency (RF) spectrum management involving multiple mobile vehicles, whereby a system and/or a method of the invention achieves greatly improved spectral efficiency in the assignment of frequency bands to communications channels between the vehicles and/or stationary ground stations. Other examples of the present invention provide systems and methods to analyze the RF emissions resulting from the motion of transmitters and/or receivers through airspace with the help of five-dimensional quanta of space (x, y, z), time and frequency to assign frequency bands to test plans (including previously-validated test plan(s) and/or to-be-validated test plan(s)). In one specific example, the analysis is directed to the assignment of frequency bands with and without reuse.Type: ApplicationFiled: October 31, 2011Publication date: November 8, 2012Applicant: TELCORDIA TECHNOLOGIES, INC.Inventors: Phiroz H. Madon, Anthony Triolo, Carol C. Martin, HeeChang Kim, Gregory P. Pollini, Achilles Kogiantis
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Patent number: 8107395Abstract: A system and method for self and group location and tracking based on ultra wide band ranging among members of the group is presented. The system comprises an anchored station, a plurality of nodes, each node having at least knowledge of where the node is facing and heading, knowledge of all pair wise distances among all of the plurality of nodes, and ability to exchange information among the nodes and with the anchored station via relays. The system and method find a new position estimate of the group in accordance with an adaptive search process based on constraints of the ultra wide band ranging, and the search process enables extracting directional information and adaptively stabilizing orientation of the group. In one embodiment, adaptively stabilizing the orientation of the group is performed using an orientation-correcting polygon matching process.Type: GrantFiled: June 26, 2009Date of Patent: January 31, 2012Assignee: Telcordia Technologies, Inc.Inventors: Richard Lau, HeeChang Kim, Arnold L. Neidhardt
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Publication number: 20100302970Abstract: A system and method for optimizing the efficiency of data sharing among a set of radio nodes in a radio environment is provided. The technique includes identifying a data unit and assigning it a class, identifying a connectivity type, computing a significance factor based on connectivity type and assigned class, mapping the significance factor to a priority factor, and scheduling output of the data unit based on the priority factor. A scheduler algorithm can be used for scheduling output. The class can be assigned based on which nodes of the set of radio nodes possess copies of the data unit at a given time. An arbitration process can be used to determine the priority factor. A significance factor weighting algorithm, based on how many nodes will be receiving the data and on how much a node needs the data, can be used to determine the significance factor.Type: ApplicationFiled: August 12, 2010Publication date: December 2, 2010Inventors: Richard LAU, Heechang KIM, Bruce SIEGELL
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Publication number: 20100265836Abstract: A system and method for self and group location and tracking based on ultra wide band ranging among members of the group is presented. The system comprises an anchored station, a plurality of nodes, each node having at least knowledge of where the node is facing and heading, knowledge of all pair wise distances among all of the plurality of nodes, and ability to exchange information among the nodes and with the anchored station via relays. The system and method find a new position estimate of the group in accordance with an adaptive search process based on constraints of the ultra wide band ranging, and the search process enables extracting directional information and adaptively stabilizing orientation of the group. In one embodiment, adaptively stabilizing the orientation of the group is performed using an orientation-correcting polygon matching process.Type: ApplicationFiled: June 26, 2009Publication date: October 21, 2010Applicant: TELCORDIA TECHNOLOGIES, INC.Inventors: Richard Lau, HeeChang Kim, Arnold L. Neidhardt
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Patent number: 7801073Abstract: A system and method for optimizing the efficiency of data sharing among a set of radio nodes in a radio environment is provided. The technique includes identifying a data unit and assigning it a class, identifying a connectivity type, computing a significance factor based on connectivity type and assigned class, mapping the significance factor to a priority factor, and scheduling output of the data unit based on the priority factor. A scheduler algorithm can be used for scheduling output. The class can be assigned based on which nodes of the set of radio nodes possess copies of the data unit at a given time. An arbitration process can be used to determine the priority factor. A significance factor weighting algorithm, based on how many nodes will be receiving the data and on how much a node needs the data, can be used to determine the significance factor.Type: GrantFiled: November 27, 2007Date of Patent: September 21, 2010Inventors: Richard Lau, Heechang Kim, Bruce Siegell
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Publication number: 20080212545Abstract: A system and method for optimizing the efficiency of data sharing among a set of radio nodes in a radio environment is provided. The technique includes identifying a data unit and assigning it a class, identifying a connectivity type, computing a significance factor based on connectivity type and assigned class, mapping the significance factor to a priority factor, and scheduling output of the data unit based on the priority factor. A scheduler algorithm can be used for scheduling output. The class can be assigned based on which nodes of the set of radio nodes possess copies of the data unit at a given time. An arbitration process can be used to determine the priority factor. A significance factor weighting algorithm, based on how many nodes will be receiving the data and on how much a node needs the data, can be used to determine the significance factor.Type: ApplicationFiled: November 27, 2007Publication date: September 4, 2008Inventors: Richard Lau, Heechang Kim, Bruce Siegell