Patents by Inventor Chang Eun Lee

Chang Eun 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).

  • Publication number: 20240136531
    Abstract: A conductive composite material, a method of preparing the same, and a secondary battery including the same. The conductive composite material may increase the proportion of an active material when forming an electrode by chemically bonding a conductive material and a binder to each other. A method of preparing the conductive composite material comprises ionizing carbon-based particles in a predetermined polarity, ionizing PTFE particles in a polarity different from that of the carbon-based particles, and chemically bonding the ionized carbon-based particles and the ionized PTFE particles, which are ionized in different polarities, to each other.
    Type: Application
    Filed: September 20, 2023
    Publication date: April 25, 2024
    Inventors: Seung Min Oh, Sung Ho Ban, Sang Hun Lee, Ko Eun Kim, Yoon Sung Lee, Chang Hoon Song, Hyeong Jun Choi, Jun Myoung Sheem, Jin Kyo Koo, Young Jun Kim
  • Publication number: 20240120477
    Abstract: A positive electrode material for a lithium secondary battery has improved electron conductivity and surface stability because oxidation-treated carbon nanotubes are stably attached to the surface of an active material. According to one embodiment the positive electrode material includes a positive electrode active material core made of a Li—Ni—Co—Mn-M-O-based material (M=transition metal) and an oxidized carbon nanotube coating layer formed on the surface of the positive electrode active material core and including 1% to 3% by weight of oxidation-treated carbon nanotubes (OCNT) relative to 100% by weight of the positive electrode active material core.
    Type: Application
    Filed: July 7, 2023
    Publication date: April 11, 2024
    Inventors: Seung Min Oh, Sung Ho Ban, Sang Hun Lee, Chang Hoon Song, Yoon Sung Lee, Ko Eun Kim, Van Chuong Ho, Jun Young Mun
  • Publication number: 20240105918
    Abstract: A positive electrode material for a lithium secondary battery and a manufacturing method therefor are provided. The positive electrode material may have carbon nanotubes stably attached to a surface of an active material and may exhibit increased electron conductivity and improved surface stability. The positive electrode material for a lithium secondary battery may comprises: a positive electrode active material core comprising a Li—Ni—Co—Mn-M-O-based material, where M is a transition metal; and a carbon nanotube coating layer on a surface of the positive electrode active material core. Carbon nanotubes (CNT) may be in an amount of 1-5 wt %, based on 100 wt % of the positive electrode active material core.
    Type: Application
    Filed: July 3, 2023
    Publication date: March 28, 2024
    Inventors: Seung Min Oh, Sung Ho Ban, Sang Hun Lee, Chang Hoon Song, Yoon Sung Lee, Ko Eun Kim, Van Chuong Ho, Jun Young Mun
  • Patent number: 11943987
    Abstract: A color conversion substrate and a display device are provided. The color conversion substrate includes a base substrate, a first color filter and a second color filter disposed on a surface of the base substrate, a first partition layer disposed between the first color filter and the second color filter, a second partition layer disposed on the first partition layer, a first wavelength conversion pattern disposed on the first color filter and a second wavelength conversion pattern disposed on the second color filter, wherein the first partition layer includes a first lower surface disposed on the first color filter and a second lower surface disposed on the second color filter.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 26, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Gak Seok Lee, Byung Chul Kim, In Ok Kim, Jae Min Seong, In Seok Song, Keun Chan Oh, Ji Eun Jang, Chang Soon Jang, Sun Kyu Joo, Ha Lim Ji
  • Patent number: 11932794
    Abstract: Disclosed are quantum dots based on a graded multishell structure and a method of manufacturing the same. More particularly, each of the quantum dots according to an embodiment of the present invention includes a core, inter shells surrounding the core, and an outer shell surrounding the inter shells, wherein the concentrations of compounds composing the inter shells are changed stepwise from the core to the outer shell.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: March 19, 2024
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Jea Gun Park, Seung Jae Lee, Ji Eun Lee, Chang Jin Lee
  • Patent number: 11930684
    Abstract: Provided is a display device. The display device includes a first base portion, a second base portion facing the first base portion, a light emitting layer disposed on one surface of the first base portion and emitting first light, a first wavelength conversion pattern disposed on the light emitting layer and converting the first light into second light having a different wavelength from the first light, a first color filter overlapping the first wavelength conversion pattern on one surface of the second base portion and spaced apart from the first wavelength conversion pattern, and an air layer interposed between the first wavelength conversion pattern and the first color filter.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: March 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Soon Jang, Keun Chan Oh, Gak Seok Lee, Sang Hun Lee, So Yun Lee, Ji Eun Jang
  • Publication number: 20240075110
    Abstract: The present invention provides a method for preventing or treating a liver disease selected from the group consisting of non-alcoholic fatty liver, non-alcoholic steatohepatitis and hepatic fibrosis comprising administrating at least one selected from the group consisting of an Ssu72 peptide, a polynucleotide encoding the Ssu72 peptide, and an expression vector comprising the polynucleotide.
    Type: Application
    Filed: September 15, 2023
    Publication date: March 7, 2024
    Inventors: Chang Woo LEE, Jin Kwan LEE, Hyun Soo KIM, Ji Hyun CHOI, Se Eun BYEON, HAE IN LEE, HYEONJU JO
  • Patent number: 11917669
    Abstract: An operation method performed by a terminal in a communication system may include: receiving, from a TRP, a first discovery signal including an identifier of a first transmission beam by using a first reception beam; measuring a first received signal strength of the first discovery signal; receiving, from the TRP, a second discovery signal including an identifier of a second transmission beam by using a second reception beam; measuring a second received signal strength of the second discovery signal; transmitting, to the TRP, first beam pair information including the identifier of the first transmission beam and an identifier of the first reception and the first received signal strength information; and transmitting, to the TRP, second beam pair information including the identifier of the second transmission beam and an identifier of the second reception beam and the second received signal strength information.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: February 27, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yu Ro Lee, Chang Wahn Yu, Heesoo Lee, Seung Eun Hong
  • Publication number: 20220277555
    Abstract: Provided is an atypical environment-based location recognition apparatus. The apparatus includes a sensing information acquisition unit configured to, from sensing data collected by sensor modules, detect object location information and semantic label information of a video image and detect an event in the video image; a walk navigation information provision unit configured to acquire user movement information; a metric map generation module configured to generate a video odometric map using sensing data collected through a sensing information acquisition unit and reflect the semantic label information; and a topology map generation module configured to generate a topology node using sensing data acquired through the sensing information acquisition unit and update the topology node through the collected user movement information.
    Type: Application
    Filed: December 14, 2021
    Publication date: September 1, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: So Yeon LEE, BLAGOVEST IORDANOV VLADIMIROV, Sang Joon PARK, Jin Hee SON, Chang Eun LEE, Sung Woo JUN, Eun Young CHO
  • Publication number: 20220121853
    Abstract: Provided is a segmentation and tracking system based on self-learning using video patterns in video.
    Type: Application
    Filed: October 19, 2021
    Publication date: April 21, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jin Hee SON, Sang Joon PARK, Blagovest Iordanov Vladimirov, So Yeon LEE, Chang Eun LEE, Jin Mo CHOI, Sung Woo JUN, Eun Young CHO
  • Publication number: 20220103984
    Abstract: Provided are a system and method for active data collection mode control for reducing crowd-sourcing signal data collection required for fingerprint database (FPDB) maintenance. The system for active data collection mode control for reducing crowd-sourcing signal data collection required for FPDB maintenance includes a mobile device configured to support a survey mode, a localization mode, and a crowd-sourcing mode and a server configured to receive data from the mobile device, generate and update an FPDB, and control a data collection mode.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 31, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Blagovest Iordanov VLADIMIROV, Sang Joon PARK, Jin Hee SON, So Yeon LEE, Chang Eun LEE, Sung Woo JUN, Eun Young CHO
  • Publication number: 20210318693
    Abstract: Provided is a multi-agent based manned-unmanned collaboration system including: a plurality of autonomous driving robots configured to form a mesh network with neighboring autonomous driving robots, acquire visual information for generating situation recognition and spatial map information, and acquire distance information from the neighboring autonomous driving robots to generate location information in real time; a collaborative agent configured to construct location positioning information of a collaboration object, target recognition information, and spatial map information from the visual information, the location information, and the distance information collected from the autonomous driving robots, and provide information for supporting battlefield situational recognition, threat determination, and command decision using the generated spatial map information and the generated location information of the autonomous driving robot; and a plurality of smart helmets configured to display the location positi
    Type: Application
    Filed: April 14, 2021
    Publication date: October 14, 2021
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chang Eun LEE, Sang Joon PARK, So Yeon LEE, Vladimirov Blagovest Iordanov, Jin Hee SON, Sung Woo JUN, Eun Young CHO
  • Patent number: 11049938
    Abstract: A PLDMOS transistor includes a substrate, a P-type drift region disposed on an upper surface of the substrate, a first body region of N-type conductivity, the first body region being disposed on one side of the drift region and having a channel region formed thereon, a drain extension region of P-type conductivity, the drain extension region being disposed on another side of the drift region and being spaced apart from the first body region, a P-type drain region disposed on the drain extension region, a gate structure disposed on the channel region, an N-type buried layer disposed under the drift region and first and second breakdown voltage increasing layers being configured to increase the breakdown voltage by providing reduced surface fields.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: June 29, 2021
    Assignee: DB HITEK CO., LTD.
    Inventor: Chang Eun Lee
  • Patent number: 10855497
    Abstract: A semiconductor device including a signal generator and decoding and timing skew adjusting circuit is provided. The signal generator is configured to receive n multi-level signals having m signal levels and convert the n multi-level signals into n*(m?1) single level signals having two signal levels. The decoding and timing skew adjusting circuit is configured to receive the single level signals, perform a predefined operation on the single level signals to generate an output signal, and compensate for timing skew between the n multi-level signals, using the single level signals. The n and m are natural numbers, where n>=2 and m>=3.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoshihiko Hayashi, Shinya Namioka, Chang Eun Lee, Sung-Yeol Kim, Si Young Koh, Hyung-Sun Ryu, Jang Yeob Lee, Shin Ki Jeong
  • Patent number: 10825185
    Abstract: The present invention relates to a method and apparatus for performing object segmentation in an image. More particularly, the present invention divides a screen of an input image into at least two sub-images, and generates one image by combining the at least two sub-images to which an image segmentation algorithm is respectively applied.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: November 3, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Kwang Yong Kim, Sang Joon Park, Gi Mun Um, Chang Eun Lee
  • Publication number: 20190363914
    Abstract: A semiconductor device including a signal generator and decoding and timing skew adjusting circuit is provided. The signal generator is configured to receive n multi-level signals having m signal levels and convert the n multi-level signals into n*(m?1) single level signals having two signal levels. The decoding and timing skew adjusting circuit is configured to receive the single level signals, perform a predefined operation on the single level signals to generate an output signal, and compensate for timing skew between the n multi-level signals, using the single level signals. The n and m are natural numbers, where n>=2 and m>=3.
    Type: Application
    Filed: February 28, 2019
    Publication date: November 28, 2019
    Inventors: YOSHIHIKO HAYASHI, SHINYA NAMIOKA, CHANG EUN LEE, SUNG-YEOL KIM, SI YOUNG KOH, HYUNG-SUN RYU, JANG YEOB LEE, SHIN Kl JEONG
  • Publication number: 20190347804
    Abstract: The present invention relates to a method and apparatus for performing object segmentation in an image. More particularly, the present invention divides a screen of an input image into at least two sub-images, and generates one image by combining the at least two sub-images to which an image segmentation algorithm is respectively applied.
    Type: Application
    Filed: November 28, 2018
    Publication date: November 14, 2019
    Inventors: Kwang Yong KIM, Sang Joon PARK, Gi Mun UM, Chang Eun LEE
  • Publication number: 20190240830
    Abstract: A cable conveying apparatus including a first feed robot configured to feed a box containing cable, a first transfer robot configured to take the cable out of the box fed by the first feed robot and insert the cable into a pallet, and a scanner placed in a path of one of the first feed robot, the first transfer robot, and the box, the scanner being configured to acquire information about the cable.
    Type: Application
    Filed: February 27, 2018
    Publication date: August 8, 2019
    Inventors: Chang Hwan LIM, Chang Eun LEE, Sung Soo KIM, Seok Won LEE
  • Publication number: 20190180472
    Abstract: The present disclosure discloses a method of determining precise positioning. A method of determining precise positioning according to an embodiment of the present disclosure includes: determining at least one piece of image positioning information of at least one image object detected from at least one image; determining at least one piece of wireless positioning information of at least one wireless object on the basis of signal strength of a wireless signal; performing mapping for the at least one piece of image positioning information and the at least one piece of wireless positioning information; and determining final positioning information on the basis of the at least one piece of image positioning information, and the at least one piece of wireless positioning information for which mapping is performed.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 13, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Gi Mun UM, Chang Eun LEE, Sang Joon PARK, Kwang Yong KIM, Sun Joong KIM, So Yeon LEE, Kee Seong CHO, Eun Young CHO
  • Publication number: 20190181227
    Abstract: A PLDMOS transistor includes a substrate, a P-type drift region disposed on an upper surface of the substrate, a first body region of N-type conductivity, the first body region being disposed on one side of the drift region and having a channel region formed thereon, a drain extension region of P-type conductivity, the drain extension region being disposed on another side of the drift region and being spaced apart from the first body region, a P-type drain region disposed on the drain extension region, a gate structure disposed on the channel region, an N-type buried layer disposed under the drift region and first and second breakdown voltage increasing layers being configured to increase the breakdown voltage by providing reduced surface fields.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 13, 2019
    Inventor: Chang Eun LEE