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).

  • Patent number: 11969707
    Abstract: The method for preparing a super absorbent polymer according to the present disclosure has a feature that it is possible to reduce the generation of a fine powder during production of the super absorbent polymer while maintaining excellent physical properties of the super absorbent polymer, including centrifuge retention capacity (CRC) and vortex removal time.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: April 30, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jaeyul Kim, Jong Hun Song, Gicheul Kim, Yoon Jae Min, Ki Hyun Kim, Seul Ah Lee, In Yong Jeong, Heechang Woo
  • Publication number: 20240138072
    Abstract: 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: Application
    Filed: August 7, 2023
    Publication date: April 25, 2024
    Inventors: SHINYA ONOUE, EUNJOONG MUN, HYEON DEUK HWANG, JUNGWOOK KIM, HEECHANG KIM, Kyounghee PARK, JIYUN BANG
  • Publication number: 20240040904
    Abstract: 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: Application
    Filed: May 17, 2023
    Publication date: February 1, 2024
    Inventors: JUNGWOOK KIM, HEECHANG KIM, EUNJOONG MUN, Kyounghee PARK, JIYUN BANG, HYEON DEUK HWANG
  • Patent number: 11458721
    Abstract: 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: Grant
    Filed: October 21, 2020
    Date of Patent: October 4, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jongman Bae, Heechang Kim, Chang-mo Park, Jinwook Yang, Soyeon Eom
  • Publication number: 20210070030
    Abstract: 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: Application
    Filed: October 21, 2020
    Publication date: March 11, 2021
    Inventors: Jongman Bae, Heechang Kim, Chang-mo Park, Jinwook Yang, Soyeon Eom
  • Patent number: 10836151
    Abstract: 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: Grant
    Filed: November 1, 2018
    Date of Patent: November 17, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jongman Bae, Heechang Kim, Chang-mo Park, Jinwook Yang, Soyeon Eom
  • Publication number: 20190255581
    Abstract: 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: Application
    Filed: February 19, 2019
    Publication date: August 22, 2019
    Inventors: Jinwook YANG, Heechang KIM, Chang-mo PARK, Jongman BAE, Soyeon EOM, Bongkee LEE, Hyoungyoul KIM
  • Publication number: 20190210351
    Abstract: 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: Application
    Filed: November 1, 2018
    Publication date: July 11, 2019
    Inventors: Jongman BAE, Heechang KIM, Chang-mo PARK, Jinwook YANG, Soyeon EOM
  • Patent number: 8908530
    Abstract: 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: Grant
    Filed: August 12, 2010
    Date of Patent: December 9, 2014
    Assignee: TTI Inventions C LLC
    Inventors: Richard Lau, Heechang Kim, Bruce Siegell
  • Patent number: 8615263
    Abstract: 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: Grant
    Filed: October 31, 2011
    Date of Patent: December 24, 2013
    Assignee: Telcordia Technologies, Inc.
    Inventors: Phiroz H. Madon, Anthony Triolo, Carol C. Martin, HeeChang Kim, Gregory P. Pollini, Achilles Kogiantis
  • Publication number: 20120282962
    Abstract: 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: Application
    Filed: October 31, 2011
    Publication date: November 8, 2012
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Phiroz H. Madon, Anthony Triolo, Carol C. Martin, HeeChang Kim, Gregory P. Pollini, Achilles Kogiantis
  • Patent number: 8107395
    Abstract: 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: Grant
    Filed: June 26, 2009
    Date of Patent: January 31, 2012
    Assignee: Telcordia Technologies, Inc.
    Inventors: Richard Lau, HeeChang Kim, Arnold L. Neidhardt
  • Publication number: 20100302970
    Abstract: 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: Application
    Filed: August 12, 2010
    Publication date: December 2, 2010
    Inventors: Richard LAU, Heechang KIM, Bruce SIEGELL
  • Publication number: 20100265836
    Abstract: 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: Application
    Filed: June 26, 2009
    Publication date: October 21, 2010
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Richard Lau, HeeChang Kim, Arnold L. Neidhardt
  • Patent number: 7801073
    Abstract: 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: Grant
    Filed: November 27, 2007
    Date of Patent: September 21, 2010
    Inventors: Richard Lau, Heechang Kim, Bruce Siegell
  • Publication number: 20080212545
    Abstract: 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: Application
    Filed: November 27, 2007
    Publication date: September 4, 2008
    Inventors: Richard Lau, Heechang Kim, Bruce Siegell