Patents by Inventor Ki-Young Lee

Ki-Young 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).

  • Patent number: 11224103
    Abstract: An LED lighting apparatus includes a first LED light source and a second LED light source included in a first light source group; a third LED light source and a fourth LED light source included in a second light source group; a mode detection circuit configured to determine a mode; a current control unit for serial and parallel connection of the first light source group and the second light source group; balancing circuits for serial and parallel connection of the respective light source groups; and a current path providing circuit for providing current paths. The LED lighting apparatus performs light emission in various states depending on the change of a rectified voltage and the change of a mode.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 11, 2022
    Assignee: Silicon Works Co., Ltd.
    Inventors: Gyeong Sik Mun, Ki Soo Kwon, Sang Young Lee, Ki Chul An
  • Patent number: 11216733
    Abstract: A self-evolving agent-based simulation system generates model evolution strategy for applying a difference between real-data and a simulation resulting value to a simulation model, and reconstructing components included in the simulation module using the model evolution strategy to evolve the simulation model when the difference between the real-data and the simulation resulting value of the agent-based simulation model does not satisfy a value in a predetermined error range.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: January 4, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Eui Hyun Paik, Dong-Oh Kang, Jang Won Bae, Chun Hee Lee, Joon Young Jung, Ki Ho Kim, Ok Gee Min
  • Patent number: 11218436
    Abstract: A method of displaying an interface for providing a social networking service (SNS) through an anonymous profile, performed by a user terminal, includes displaying a first list of at least one anonymous chatroom created by a user account for an instant messaging service (IMS) using a first region on a first page in an interface for the IMS, displaying a second list of at least one anonymous profile created to be interlinked with the user account using a first region on a second page in the interface for the IMS, and displaying, in response to an input of selecting any one anonymous profile in the second list, an interface for providing the SNS through the selected anonymous profile.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: January 4, 2022
    Assignee: KAKAO CORP.
    Inventors: Ji Sun Lee, Hyun Young Park, Seong Mi Lim, Young Min Park, Doo Won Lee, Eun Jung Ko, Jae Lin Lee, Kwang Hui Lim, Ki Yong Shim, Sun Ho Choi, Kwang Hoon Choi, Hwa Young Lee, Jae Gil Lee, Kyong Rim Kim, Soo Min Cho
  • Publication number: 20210403882
    Abstract: Disclosed are a recombinant acid-resistant yeast having improved lactic-acid-producing ability and a method of preparing lactic acid using the same. When producing lactic acid using the recombinant acid-resistant yeast according to the present invention, not only lactic-acid fermentation can be performed with lactic-acid-producing ability similar to that of bacterial fermentation using a remarkably smaller amount of a neutralizing agent than in the case of conventional bacterial fermentation, but also the production of ethanol and glycerol which are byproducts can be reduced. Thus, fermentation costs can be greatly reduced and the cost of subsequent purification processes can be reduced.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 30, 2021
    Inventors: Jae Yeon PARK, Tae Young LEE, Ki Sung LEE
  • Publication number: 20210399553
    Abstract: A battery management system of a battery cell assembly including a plurality of cells, includes a plurality of first cell balancing resistors and a plurality of first cell balancing switches connected between a positive electrode and a negative electrode of a corresponding first cell among the plurality of cells; and a plurality of second cell balancing resistors and a plurality of second cell balancing switches connected between the positive electrode and the negative electrode of the corresponding first cell, wherein a first cell balancing current flowing during an on period of each first cell balancing switch is greater than a second cell balancing current flowing during an on period of each second cell balancing switch.
    Type: Application
    Filed: March 10, 2020
    Publication date: December 23, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Ki Young LEE, Kyoung Choon MIN
  • Publication number: 20210345480
    Abstract: Disclosed is a battery management system circuit, including: a substrate; a first resistor part disposed on the substrate and including a plurality of resistors; a second resistor part disposed on the substrate and including a plurality of resistors; and a first perforation formed by piercing the substrate between the first resistor part and the second resistor part, and the first perforation diffuses heat generated by the first resistor part and the second resistor part.
    Type: Application
    Filed: March 9, 2020
    Publication date: November 4, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Ki Young LEE, Wongon KIM
  • Patent number: 11043774
    Abstract: A male connector, which is connected to or disconnected from a female connector, and includes a male connector housing, male connector pins disposed in an inner space of the male connector housing, and a ground connection member having one side connected to the male connector pins and the other side connected to an inner wall of the male connector housing, wherein the ground connection member is provided in plural, and wherein the plurality of ground connection members are respectively connected to the male connector pins in one-to-one relationship and are detachably connected to the male connector pins, respectively, at positions spaced from front ends of the male connector pins by predetermined distances such that the plurality of ground connection members are separated in sequence from the male connector pin by the female connector according to a depth by which the female connector is inserted into the male connector housing.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 22, 2021
    Inventors: Dong-Wan Ko, Ki-Young Lee
  • Publication number: 20210109492
    Abstract: Disclosed are a communication method between a master controller and slave controllers, a slave controller for the communication method, and a battery management system using the communication method and the slave controller, in which the master controller receives safety information about battery cells through a plurality of channels even when each of a plurality of slave controllers includes only one micro controller unit, thereby minimizing the increase in the cost and enhancing the safety of the battery management system. The communication method includes performing bidirectional communication between a master controller and first to Nth (where N is an integer equal to or more than two) slave controllers through a first communication channel, and receiving, by the master controller, an indication signal through a second communication signal via the first to Nth slave controllers.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Inventors: Myoung Su Song, Jae Wan Kim, Jin Yong Jeon, Ki Suk Cho, Il Kwon Kim, Seung Jun Choi, Kyu Ho Kim, Kyoung Choon Min, Ki Young Lee, Won Gon Kim
  • Publication number: 20210083431
    Abstract: A male connector, which is connected to or disconnected from a female connector, and includes a male connector housing, male connector pins disposed in an inner space of the male connector housing, and a ground connection member having one side connected to the male connector pins and the other side connected to an inner wall of the male connector housing, wherein the ground connection member is provided in plural, and wherein the plurality of ground connection members are respectively connected to the male connector pins in one-to-one relationship and are detachably connected to the male connector pins, respectively, at positions spaced from front ends of the male connector pins by predetermined distances such that the plurality of ground connection members are separated in sequence from the male connector pin by the female connector according to a depth by which the female connector is inserted into the male connector housing.
    Type: Application
    Filed: February 27, 2019
    Publication date: March 18, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Dong-Wan Ko, Ki-Young Lee
  • Patent number: 10915080
    Abstract: Disclosed are a communication method between a master controller and slave controllers, a slave controller for the communication method, and a battery management system using the communication method and the slave controller, in which the master controller receives safety information about battery cells through a plurality of channels even when each of a plurality of slave controllers includes only one micro controller unit, thereby minimizing the increase in the cost and enhancing the safety of the battery management system. The communication method includes performing bidirectional communication between a master controller and first to Nth (where N is an integer equal to or more than two) slave controllers through a first communication channel, and receiving, by the master controller, an indication signal through a second communication signal via the first to Nth slave controllers.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 9, 2021
    Assignees: SILICON WORKS CO., LTD., LG CHEM, LTD.
    Inventors: Myoung Su Song, Jae Wan Kim, Jin Yong Jeon, Ki Suk Cho, Il Kwon Kim, Seung Jun Choi, Kyu Ho Kim, Kyoung Choon Min, Ki Young Lee, Won Gon Kim
  • Patent number: 10790686
    Abstract: The present invention relates to a system for protecting a battery, and to a battery protecting system, which obtains state information of a battery through two different state obtaining units and diagnoses whether the battery has a problem based on the two elements of state information obtained through the two state obtaining units and reference state information, thereby more certainly diagnosing a state of the battery and stably protecting a load from the battery in the problem state.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 29, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Ki Young Lee, Jae Chan Lee
  • Patent number: 10651438
    Abstract: Provided are a battery pack and a control method using the same, the battery pack having improved safety so as to prevent fire or prevent fire from spreading even if ignited, thereby reducing the risks which can occur during ignition. The battery pack, according to the present invention, comprises: an electrode assembly comprising an anode, a cathode, and a separator; and a single cell or a plurality of cells having a pouch-shaped battery case for accommodating the electrode assembly, wherein the cell is accommodated and stacked by the module case, the module case comprises a fire suppression agent or a fire extinguishing agent at the inner or outer part thereof such that the fire suppression agent or the fire extinguishing agent is automatically discharged from the module case when cell swelling occurs.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: May 12, 2020
    Assignee: LG CHEM, LTD.
    Inventor: Ki-Young Lee
  • Patent number: 10608220
    Abstract: Provided are a battery pack and a control method using the same, the battery pack having improved safety so as to prevent fire or prevent fire from spreading even if ignited, thereby reducing the risks which can occur during ignition. The battery pack, according to the present invention, comprises: an electrode assembly comprising an anode, a cathode, and a separator; and a single cell or a plurality of cells having a pouch-shaped battery case for accommodating the electrode assembly, wherein the cell is accommodated and stacked by the module case, the module case comprises a fire suppression agent or a fire extinguishing agent at the inner or outer part thereof such that the fire suppression agent or the fire extinguishing agent is automatically discharged from the module case when cell swelling occurs.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: March 31, 2020
    Assignee: LG CHEM, LTD.
    Inventor: Ki-Young Lee
  • Publication number: 20200070403
    Abstract: Provided are a method of producing a nanoparticle device and a nanoparticle device. The method of producing a nanoparticle device may be economical due to use of a hydrogel, may be easy to design in terms of mass production processes, and may reduce manufacturing times to 1/100 to 1/10 of the technology of the related art. In addition, a nanoparticle device may be produced in various designs by stably realizing a 3D pattern and pattern stacking, and may have highly uniform nanoparticle dispersion and excellent electrical activity through the removal of a surfactant without damaging the pattern. The nanoparticle device produced according to the production method may have excellent electrical activity due to nanoparticle uniformity pattern accuracy and thus may be applied to pattern stacking which could not be implemented by methods of the related art.
    Type: Application
    Filed: August 22, 2019
    Publication date: March 5, 2020
    Inventors: Hyunjung YI, Tae Hyung KANG, Hochan CHANG, Ki-Young LEE
  • Patent number: 10581110
    Abstract: The present invention provides a positive electrode active material for a lithium secondary battery, which includes a secondary particle core formed by agglomeration of primary particles of a nickel manganese cobalt-based first lithium composite metal oxide, an intermediate layer disposed on the core and including rod-shaped nickel manganese cobalt-based second lithium composite metal oxide particles radially oriented from a center of an active material particle to a surface thereof, and a shell disposed on the intermediate layer and including a nickel manganese cobalt-based third lithium composite metal oxide, and a lithium secondary battery including the same.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 3, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Yong Hoon Kwon, Ki Young Lee
  • Patent number: 10568579
    Abstract: Provided are a pressure sensor including hybrid electronic sheet and a wearable device including the pressure sensor. The pressure sensor has excellent controllable electric characteristics and excellent mechanical flexibility and stability, and measures, for example, pressure in a simple and highly reproducible manner in which a resistance of a component in a sensor varies depending on applied pressure.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: February 25, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyun Jung Yi, Seung Woo Lee, Ki Young Lee
  • Publication number: 20190393561
    Abstract: A customized battery management system (BMS) module, in which the BMS is separated into parts based on a function and is designed in advance, and a BMS part is selected and is mounted on a substrate so as to correspond to a separate BMS design request, without differently designing the BMS in accordance with different component specifications each time.
    Type: Application
    Filed: August 9, 2018
    Publication date: December 26, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Dong Wan KO, Ki Young LEE
  • Patent number: 10503306
    Abstract: Provided is a pressure sensor including: a first layer having first conductivity and at least one conductive region; a second layer contacting the first layer to be disposed thereon and having second conductivity; and a plurality of terminals that are electrically connected with the second layer and spaced apart from the at least one conductive region, wherein the at least one conductive region has electrical conductivity that is greater than or equal to that of the second layer.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: December 10, 2019
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyunjung Yi, Sungwoong Kim, Seungwoo Lee, Ki-Young Lee
  • Publication number: 20190363880
    Abstract: Disclosed herein are a system on chip, a method of operating the system on chip, and an electronic device including the system on chip that execute artificial intelligence (AI) algorithms and/or machine learning algorithms in a 5G environment connected for Internet of Things in order to prevent an artificial intelligence product from being surreptitiously used, replaced, or modified by an attacker.
    Type: Application
    Filed: August 12, 2019
    Publication date: November 28, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Sang Hee LEE, Youn Ki KU, Sung Min PARK, Mark Dong Yeon SHIN, Je Min WOO, Ki Young LEE
  • Patent number: D940120
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: January 4, 2022
    Assignee: Spigen, Inc.
    Inventors: Woo Jin Kim, Judy Jahey Chung, Ki Dong Kwon, Tae Hun Kim, Hyun Joo Lee, Joo Young Yoon, Hong Jin Park