Patents by Inventor Hyeok Lee

Hyeok 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: 20240157614
    Abstract: Proposed are an apparatus and a method for expanded polypropylene (EPP) molding. The apparatus for EPP molding includes an upper mold, a lower mold forming a cavity, which is a space for manufacturing a molded product, together with the upper mold, a skin holding means provided at the upper mold or the lower mold, an insert holding means provided at one of the upper mold and the lower mold where the skin holding means is not provided, a resin supply means supplying a polypropylene resin to the cavity, a heating means applying heat to the polypropylene resin supplied to the cavity, and a mold driving means moving the upper mold and the lower mold in directions towards or away from each other.
    Type: Application
    Filed: October 24, 2023
    Publication date: May 16, 2024
    Inventors: Chi Won YOON, Hyeok LEE
  • Publication number: 20240163278
    Abstract: Disclosed is a user authentication-based packet classification method and apparatus for providing differentiated security services in a ship network. A user authentication-based packet classification method includes receiving an authorization code request message from a user terminal including a client, authenticating and authorizing a user of the client based on the authorization code request message, transmitting an authorization code response message to the user terminal in response to the authorization code request message, receiving an access token request message from the user terminal based on the authorization code response message, and transmitting an access token response message including an access token to the user terminal in response to the access token request message.
    Type: Application
    Filed: August 7, 2023
    Publication date: May 16, 2024
    Inventors: Jin Hyeok OH, Keon YUN, Sun Woo YUN, Sang Min LEE, Myong Cheol LIM, Sang Gyoo SIM, Tae Gyun KIM
  • Publication number: 20240159466
    Abstract: A heat treatment apparatus includes a furnace body, a roller inside the furnace body, a heater inside the furnace body, an upper and lower discharge pipes on the furnace body, and a lower supply pipe on the lower part of the furnace body. The furnace body includes areas having the upper and lower discharge pipes, the areas including a first area to an Nth area disposed sequentially along a second direction being a transport direction of each of the materials, a length of the first area in the second direction is shorter than lengths of the second area to the Nth area in the second direction, and in each of the first area to the Nth area, the upper discharge pipe and the lower supply pipe are not arranged in a straight line in a third direction being a height direction to be misaligned from each other.
    Type: Application
    Filed: August 17, 2023
    Publication date: May 16, 2024
    Inventors: Dong Ho HAN, Shin Ho LEE, Jin Hyeok LEE, Young Jin LIM, Tae Ho KANG, Sung Min KWON
  • Publication number: 20240154093
    Abstract: Provided is a lithium secondary battery including a positive electrode, a negative electrode, a separator, and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode active material comprising lithium iron phosphate particles, and the positive electrode has a loading amount of 450 mg/25 cm2 to 740 mg/25 cm2, and the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, wherein the organic solvent includes ethylene carbonate, and dimethyl carbonate, and the dimethyl carbonate is included in 5 vol % to 75 vol % in the organic solvent, and the additive contains vinylene carbonate, and the weight ratio of the vinylene carbonate to the dimethyl carbonate is greater than 0 to 0.2 or less.
    Type: Application
    Filed: November 3, 2023
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jun Hyeok Han, Chul Haeng Lee, Kyoung Ho Ahn, Young Ho Oh, You Kyeong Jeong, Yoon Seok Ko
  • Publication number: 20240154165
    Abstract: An electrolyte additive comprising a compound represented by Formula 1 below forms a coating film on an electrode surface in the activation of a secondary battery, thereby the generation of a large amount of gas under a high temperature condition can be prevented, and a cell OCV drop and a decrease in capacity retention rate, which are caused by elution of metal ions from an electrode, can be effectively prevented, resulting in effective improvement in durability, performance and high-temperature safety of the battery, wherein R1, R2, and M are described herein.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: You Kyeong Jeong, Kyoung Ho Ahn, Jun Hyeok Han, Won Kyung Shin, Won Tae Lee, Su Hyeon Ji, Young Ho Oh
  • Patent number: 11978911
    Abstract: The present invention relates to a three-dimensional structure electrode, a method for manufacturing same, and an electrochemical element including the electrode. The present invention is characterized by comprising: (a) an upper conductive layer and a lower conductive layer which have a structure constituting an assembly within which a conductive material and a porous nonwoven fabric including a plurality of polymeric fibers are three-dimensionally connected in an irregular and continuous manner, thereby forming a mutually connected porous structure; and (b) an active material layer forming the same assembly structure as the conductive layers and forming a three-dimensionally filled structure in which electrode active material particles are uniformly filled inside the mutually connected porous structure formed in the assembly structure, wherein the active material layer is formed between the upper conductive layer and the lower conductive layer.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: May 7, 2024
    Assignees: UNIST (Ulsan National Institute of Science and Technology), LG Energy Solution, Ltd.
    Inventors: In Sung Uhm, Sang Young Lee, Yo Han Kwon, Ju Myung Kim, Joon Won Lim, Jae Hyun Lee, Je Young Kim, Seong Hyeok Kim
  • Patent number: 11978854
    Abstract: The present invention relates to a composition for a polymer electrolyte which includes a polymerizable oligomer capable of forming an excellent crosslink during a polymerization reaction. Also, the present invention relates to a polymer electrolyte, which may ensure high oxidation stability and ionic conductivity by using the composition for a polymer electrolyte, and a lithium secondary battery including the same.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: May 7, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Kyoung Ho Ahn, Sol Ji Park, Jun Hyeok Han, Chul Haeng Lee, Jung Hoon Lee
  • Publication number: 20240145683
    Abstract: A positive electrode active material including a lithium nickel-based composite oxide including secondary particles formed by aggregation of one or more primary particles, wherein a part of cations and a part of anions in the lithium nickel-based composite oxide are substituted, respectively, with cations M? and fluorine anions (F?) in a fluorine-based compound.
    Type: Application
    Filed: May 22, 2023
    Publication date: May 2, 2024
    Inventors: Kyu Suk HAN, Jin Hyeok CHOI, Jae Hoon SHIN, Seul Gi LEE
  • Publication number: 20240145862
    Abstract: Provided are a separator for a secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same, having appropriate porosity and an appropriate pore size to lead to excellent strength and safety, and having excellent ion conductivity and resistance characteristics due to interconnected pore passages. The manufacturing method of a separator for a secondary battery includes: molding a separator manufacturing composition into a separator manufacturing sheet; and extracting a diluent from the separator manufacturing sheet with a polar aprotic organic solvent.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Inventors: Chang Mook HWANG, Hyun Ji KIM, Jong Hyeok LEE, Yoon Ji JO
  • Publication number: 20240145872
    Abstract: Provided are a separator for a secondary battery, a manufacturing method thereof, and a lithium secondary battery including the same, having appropriate porosity and an appropriate pore size to lead to excellent strength and safety, and having excellent ion conductivity and resistance characteristics due to interconnected pore passages. In the separator for a secondary battery, an RS value represented by Equation 1 below is greater than 5 and less than 10: R S = P D × G ? Equation ? 1 ? wherein in Equation 1, RS denotes a separator performance index, P denotes an average porosity value (%) of the separator, D denotes an average pore diameter value (?m) of the separator, and G denotes an air permeability value (sec/100 cc) of the separator.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Inventors: Chang Mook HWANG, Hyun Ji KIM, Jong Hyeok LEE, Yoon Ji JO
  • Publication number: 20240143611
    Abstract: A deep learning framework application database server includes: an input/output unit configured to receive an inference query from a user; a storage unit serving as a database and comprising a previously learned first learning model table and an inference dataset table associated with the inference query; and a framework unit configured to interwork with the database and perform deep learning for the inference query using the first learning model table and the inference dataset table.
    Type: Application
    Filed: November 4, 2021
    Publication date: May 2, 2024
    Applicant: KOREA PLATFORM SERVICE TECHNOLOGY
    Inventor: Jun Hyeok LEE
  • Patent number: 11971671
    Abstract: A fusing apparatus includes: a pressing roller to be axially rotated; a fusing belt to rotate by receiving a rotational force from the pressing roller; a pressing member to press toward the pressing roller from the inside of the fusing belt to form a nip in which the printing paper is nipped between the fusing belt and the pressing roller; on the fusing belt or the pressing member, a sliding layer to reduce friction between the fusing belt and the pressing member; and an adhesive layer to adhere the sliding layer to the fusing belt or the pressing member.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: April 30, 2024
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sun Hyung Lee, Sea Chul Bae, Jae Hyeok Jang, Jin Gyu Ko
  • Patent number: 11973190
    Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In some embodiments, an electrolyte for a lithium secondary battery includes a lithium salt, a non-aqueous solvent containing a fluorine-based organic solvent, and a fluorine-based compound represented by Formula 1. In some embodiments, a lithium secondary battery includes a positive electrode, a negative electrode, a separator disposed therebetween, and the electrolyte.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: April 30, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Sol Ji Park, Kyoung Ho Ahn, Jun Hyeok Han, Chul Haeng Lee
  • Publication number: 20240137511
    Abstract: Disclosed herein are a video decoding method and apparatus and a video encoding method and apparatus. In video encoding and decoding, multiple partition blocks are generated by splitting a target block. A prediction mode is derived for at least a part of the multiple partition blocks, among the multiple partition blocks, and prediction is performed on the multiple partition blocks based on the derived prediction mode. When prediction is performed on the partition blocks, information related to the target block may be used, and information related to an additional partition block, which is predicted prior to the partition block, may be used.
    Type: Application
    Filed: January 4, 2024
    Publication date: April 25, 2024
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY, HANBAT NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jin-Ho LEE, Jung-Won KANG, Hyunsuk KO, Sung-Chang LIM, Dong-San JUN, Ha-Hyun LEE, Seung-Hyun CHO, Hui-Yong KIM, Hae-Chul CHOI, Dae-Hyeok GWON, Jae-Gon KIM, A-Ram BACK
  • Publication number: 20240136604
    Abstract: The present invention provides a battery safety test device includes: a mechanical switch element having one end connected to either a battery positive or negative electrode and the other end connected to an electronic switching element; the electronic switching element having one end connected to the mechanical switch element and the other end connected to the other of the battery positive or negative electrode; a voltage sensor for measuring a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and a current sensor for measuring a current of the battery after the mechanical switch element and the electronic switching element are turned on.
    Type: Application
    Filed: December 29, 2023
    Publication date: April 25, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Won Hyeok LEE, Hyung Jin HWANG, Seong Ha CHA, Ui Yong JEONG, In Cheol SHIN
  • Publication number: 20240136579
    Abstract: Disclosed herein relates to an electrolyte composition and a lithium secondary battery including the same, wherein the electrolyte composition can not only effectively reduce gas generated during charging and discharging of the lithium secondary battery by including one or more electrolyte additives of a chemical compound represented by Formula 1 or a chemical compound represented by Formula 2, but also has the advantage of strengthening the SEI layer on the electrode surface, thereby improving the storage characteristics and life characteristics at high temperatures.
    Type: Application
    Filed: January 30, 2023
    Publication date: April 25, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Su Hyeon JI, Chul Haeng LEE, Kyoung Ho AHN, Jun Hyeok HAN, Won Kyung SHIN, Won Tae LEE
  • Publication number: 20240116501
    Abstract: A collision safety control system includes a memory storing a collision safety model having a deep learning-based collision safety control logic. The collision safety control system also includes a processor electrically connected to the memory. The processor is configured to, in accordance with the collision safety control logic, train, based on at least one signal including pre-collision data and post-collision data, the collision safety model such that the collision safety model outputs a collision type and a required time-to-fire (RTTF) of passenger protection equipment corresponding to the at least one signal.
    Type: Application
    Filed: October 6, 2023
    Publication date: April 11, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, Seoul National University R&DB Foundation
    Inventors: Hyung Wook Park, Sung Roh Yoon, Dong Hyeok Lee
  • Publication number: 20240120466
    Abstract: Provided is that a negative active material for a rechargeable lithium battery, a negative electrode for a rechargeable lithium battery including the same, and a rechargeable lithium including the same, and the negative active material for a rechargeable lithium battery includes an agglomerated product of silicon-based materials comprising a silicon particle, a lithium silicate positioned on a surface of the silicon particle, a first amorphous carbon surrounded on the silicon particle and the lithium silicate; and a second amorphous carbon positioned on the agglomerated product.
    Type: Application
    Filed: October 27, 2021
    Publication date: April 11, 2024
    Inventors: Changsu SHIN, Jongmin KIM, Jongmin WON, Youngugk KIM, Jaemyung KIM, Jaehou NAH, Dae-Hyeok LEE, Jungho LEE
  • Publication number: 20240113334
    Abstract: An electrolyte composition with improved high temperature safety and a lithium secondary battery including the same is described herein. The electrolyte composition containing a primary additive comprising a compound represented by Formula 1, and specific amount of a secondary additive that contains one or more of cyclic carbonates, can not only reduce the generation of gas during secondary battery charge-discharge, but also improve storage characteristics and the lifespan characteristics under a high temperature condition by strengthening the SEI coating film on the surface of an electrode. wherein all the variables are described herein.
    Type: Application
    Filed: October 21, 2022
    Publication date: April 4, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Won Tae Lee, Kyoung Ho Ahn, Chul Haeng Lee, Jun Hyeok Han, Won Kyung Shin, Su Hyeon Ji, Young Ho Oh
  • Publication number: 20240113305
    Abstract: The present disclosure relates to an anode current collector and a metal battery, and more specifically, to an anode current collector and a metal battery including the same, the collector including: a two-dimensional material layer which is formed on at least a portion of at least one surface of a current collector substrate, and which has an atomic thickness; and a metal layer formed on at least a portion of the two-dimensional material layer. In addition, the present disclosure may further provide a method of manufacturing the anode current collector.
    Type: Application
    Filed: October 8, 2021
    Publication date: April 4, 2024
    Applicant: NEXTERIALS CO., LTD.
    Inventors: Hyeon Suk Shin, Sang Young Lee, Seung Hyeok Kim, Min Su Kim