Patents by Inventor Yong Ju Lee

Yong Ju 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: 20250147715
    Abstract: A method of playing a sound source is provided. The method includes identifying a playback area for at least one higher order ambisonic (HOA) sound source existing in a target space, determining a coordinate calculation standard for playing the HOA sound source based on a positional relationship between the playback area of the HOA sound source and a listener existing in the target space, and calculating a head related transfer function (HRTF) rendering angle of the HOA sound source according to the determined coordinate calculation standard and playing the HOA sound source.
    Type: Application
    Filed: August 5, 2024
    Publication date: May 8, 2025
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jae-hyoun YOO, Kyeongok KANG, Yong Ju LEE, Dae Young JANG
  • Publication number: 20250149564
    Abstract: A negative electrode active material, a method for manufacturing the same, a negative electrode composition including the same, a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided. The negative electrode active material comprises a silicon-based active material having a crystal grain size of 200 nm or less, the silicon-based active material having an average particle diameter (D50) of 1 ?m or greater and 9 ?m or less, and the silicon-based active material including Si and optionally SiOx (0<x<2), and including 70 parts by weight or more of Si on the basis of 100 parts by weight of the silicon-based active material.
    Type: Application
    Filed: July 13, 2023
    Publication date: May 8, 2025
    Inventors: Dohyeun KIM, Donghyuk KIM, Yong Ju LEE, Hyunmin JUN
  • Publication number: 20250149569
    Abstract: A negative electrode active material, a method for manufacturing the same, a negative electrode composition and a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided.
    Type: Application
    Filed: August 2, 2023
    Publication date: May 8, 2025
    Inventors: Dohyeun KIM, Donghyuk KIM, Yong Ju LEE, Hyunmin JUN
  • Publication number: 20250133894
    Abstract: Provided is a transparent indium zinc tin oxide (IZTO) electrode with a PANI:PSS interlayer, wherein the PANI:PSS interlayer is formed on an upper surface of an IZTO film. Accordingly, it is possible to manufacture a transparent IZTO electrode with improved mechanical stability by forming a PANI:PSS interlayer to prevent fractures in the inorganic IZTO layer, thereby significantly improving the retention rate of the initial average visible transmittance (AVT) even after bending cycles and reducing sheet resistance.
    Type: Application
    Filed: October 18, 2024
    Publication date: April 24, 2025
    Inventors: Hyeok KIM, Swarup BISWAS, Yong Ju LEE, Hyo Won JANG, Se Lim HAN
  • Publication number: 20250125344
    Abstract: A silicon carbon composite, a negative electrode active material, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module, and a battery pack are provided.
    Type: Application
    Filed: October 11, 2024
    Publication date: April 17, 2025
    Inventors: Seunggwan Lee, Taeho Kim, Gunwoo Kim, Sun Young Shin, Yong Ju Lee
  • Publication number: 20250122083
    Abstract: A silicon carbon composite, a negative electrode active material, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module, and a battery pack are provided. The silicon carbon composite satisfies a condition of 1.3?((B+C)/A)<4, wherein A is an intensity of a peak having a chemical shift value in the range of 20 ppm to ?15 ppm in a 29Si-MAS-NMR spectrum, B is an intensity of a peak having a chemical shift value in the range of ?20 ppm to ?100 ppm in the 29Si-MAS-NMR spectrum; and C is an intensity of a peak having a chemical shift value in the range of ?110 ppm to ?140 ppm in the 29Si-MAS-NMR spectrum.
    Type: Application
    Filed: October 11, 2024
    Publication date: April 17, 2025
    Inventors: Seunggwan Lee, Taeho Kim, Gunwoo Kim, Sun Young Shin, Yong Ju Lee
  • Publication number: 20250118735
    Abstract: A negative electrode active material, a method for manufacturing the same, a negative electrode including the same, and a secondary battery including the negative electrode are provided. The negative electrode active material comprises: a silicon-based particle comprising SiOx(0<x<2) and a Li compound, and having a carbon layer provided on at least a portion of a surface thereof; and a Ca-containing inorganic layer provided on at least a portion on the silicon-based particle.
    Type: Application
    Filed: July 14, 2023
    Publication date: April 10, 2025
    Inventors: Heeyeon PARK, Junghyun CHOI, Sun Young SHIN, Yong Ju LEE
  • Patent number: 12261263
    Abstract: A lithium secondary battery includes a positive electrode, a negative electrode, a separator, and an electrolyte, wherein the positive electrode includes a positive electrode active material layer having a positive electrode active material containing an overlithiated manganese-based oxide represented by Formula 1 below, and the negative electrode includes a negative electrode active material layer having a silicon-based negative electrode active material, LiaNibCocMndMeO2??[Formula 1] wherein, M is at least one selected from the group consisting of Al, B, Co, W, Mg, V, Ti, Zn, Ga, In, Ru, Nb, Sn, Sr, and Zr, and 1<a, 0?b?0.5, 0?c?0.1, 0.5?d<1.0, and 0?e?0.2, and. Preferably, in the Formula 1, 1.1?a?1.5, 0.1?b?0.4, 0?c?0.05, 0.5?d?0.80, and 0?e?0.1.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: March 25, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Byung Chun Park, Yo Han Kwon, Je Young Kim, Seok Koo Kim, Wang Mo Jung, Yong Ju Lee, Chul Haeng Lee
  • Patent number: 12255336
    Abstract: A negative electrode and a lithium secondary battery include the negative electrode, wherein the negative electrode includes a metal current collector and a negative electrode active material layer including a negative electrode active material and metal nanowires and formed on the metal current collector. The negative electrode active material includes a silicon-based active material and a carbon-based active material, and the metal nanowires include one or more metals selected from the group consisting of copper, gold, nickel, cobalt, and silver.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: March 18, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Dong Hyuk Kim, Yong Ju Lee, Il Geun Oh
  • Publication number: 20250087674
    Abstract: The present disclosure relates to a negative electrode active material, a negative electrode including the same, a secondary battery including the negative electrode, and a method for manufacturing a negative electrode active material. The negative electrode active material includes a silicon-based particle including SiOx (0<x<2) and a Li compound, a carbon layer provided on at least a portion of a surface of the silicon-based particle, and a surface layer provided on at least a portion of a surface of the carbon layer and comprising Li, Al and P, wherein an oxide comprising one or more selected from the group consisting of Zr, B, Al, Zn, W and Ti is provided at an interface between the silicon-based particle and the carbon layer.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 13, 2025
    Inventors: Junghyun Choi, Semi Park, Heeyeon Park, Sun Young Shin, Ilgeun Oh, Yong Ju Lee
  • Patent number: 12249703
    Abstract: A negative electrode active material for a lithium secondary battery, including silicon oxide particles, wherein the silicon oxide has a full width at half maximum peak ranging between 2 and 6 in a particle size distribution and the silicon oxide particles have an average particle size (D50) of 1 ?m to 20 ?m, and a negative electrode and a lithium secondary battery comprising the same. The negative electrode active material according to the disclosure has outstanding life performance and output performance.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: March 11, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Su-Min Lee, Je-Young Kim, Sun-Young Shin, Yong-Ju Lee
  • Patent number: 12249706
    Abstract: The present invention relates to a silicon-carbon composite negative electrode active material, a negative electrode including the same, and a secondary battery, wherein the silicon-carbon composite negative electrode active material includes a core containing SiOX (0?X<2), a carbon layer covering at least a portion of the surface of the core, a carbon nanotube structure positioned on the carbon layer, and a polyvinylidene fluoride coating at least a portion of the carbon nanotube structure, wherein the carbon nanotube structure has a structure formed by arranging and bonding 2 to 5,000 single-walled carbon nanotube units side by side, and a portion of the carbon nanotube structure is bonded to the carbon layer.
    Type: Grant
    Filed: April 19, 2021
    Date of Patent: March 11, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Tae Gon Kim, Yong Ju Lee, Il Geun Oh, Min Kwak, Je Young Kim, Wang Mo Jung
  • Patent number: 12231864
    Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.
    Type: Grant
    Filed: December 1, 2023
    Date of Patent: February 18, 2025
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju Lee, Jeong Il Seo, Seung Kwon Beack, Kyeong Ok Kang, Jin Woong Kim, Jae Hyoun Yoo
  • Publication number: 20250054978
    Abstract: Disclosed are a negative electrode active material, a negative electrode including the same, a secondary battery including the same and a method for preparing the negative electrode active material. The negative electrode active material can include silicon-based particles including SiOx, wherein 0<x<2, and a Li compound, wherein the Li compound includes a crystalline lithium silicate including Li2SiO3, and optionally also including at least selected from the group consisting crystalline Li4SiO4 and crystalline Li2Si2O5, a content of the crystalline Li2SiO3 is higher than the sum of a content of the crystalline Li2Si2O5 and a content of the crystalline Li4SiO4, the content of the crystalline Li2SiO3 is included in an amount of 60 parts by weight or more based on 100 parts by weight of crystalline lithium silicate, and a total content of a crystalline phase present in the silicon-based particles is higher than a total content of an amorphous phase.
    Type: Application
    Filed: September 6, 2023
    Publication date: February 13, 2025
    Inventors: Junghyun CHOI, Semi PARK, Heeyeon PARK, Sun Young SHIN, Ilgeun OH, Yong Ju LEE
  • Patent number: 12225370
    Abstract: Disclosed is an apparatus for immersive spatial audio modeling and rendering for effectively transmitting and playing immersive spatial audio content. The apparatus for immersive spatial audio modeling and rendering disclosed herein may model a spatial audio scene, generate and transmit parameters necessary for spatial audio rendering, and generate various spatial audio effects using the spatial audio parameters, to provide an immersive three-dimensional (3D) audio source coinciding with visual experience in a virtual reality space in response to free changes in the position and direction of a remote user in the space.
    Type: Grant
    Filed: January 12, 2023
    Date of Patent: February 11, 2025
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Dae Young Jang, Kyeongok Kang, Jae-hyoun Yoo, Yong Ju Lee
  • Patent number: 12212949
    Abstract: Provided is a method of reproducing an ambisonic signal in a virtual reality (VR) space. The ambisonic signal reproduction method may include receiving an ambisonic signal, mapping the ambisonic signal to channels localized on a sphere according to an equivalent spatial domain (ESD) standard corresponding to an order of the ambisonic signal, and performing a sound field reproduction in the VR space based on the channels localized on the sphere.
    Type: Grant
    Filed: December 28, 2022
    Date of Patent: January 28, 2025
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae-hyoun Yoo, Kyeongok Kang, Yong Ju Lee, Dae Young Jang
  • Publication number: 20250023041
    Abstract: A lithium secondary battery includes a cathode having a cathode active material, an anode having an anode active material, a separator, and an electrolyte. The cathode active material comprises a lithium composite transition metal compound having Ni, Co, and Mn, and has single particles and/or pseudo-single particles. Each single particle consists of one nodule, and each pseudo-single crystal is a composite of 30 or fewer nodules. The single particles and/or pseudo-single particles have an average particle diameter (D50) of 1 ?m or more.
    Type: Application
    Filed: September 27, 2024
    Publication date: January 16, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Su Min Lee, Sun Young Shin, Yong Ju Lee, Bumgi Heo
  • Publication number: 20240420392
    Abstract: Disclosed herein is an apparatus and method for scene graph generation. The apparatus may include a backbone network for extracting a first feature map from an input image, an encoder for extracting a second feature map that is based on a mask for the shape of an object within a bounding box using the first feature map and generating a third feature map by combining the first feature map and the second feature map, and a decoder for generating a scene graph by predicting the relationship between objects from the third feature map.
    Type: Application
    Filed: March 21, 2024
    Publication date: December 19, 2024
    Inventors: Sang-Hun JEON, Yong-Ju LEE
  • Patent number: 12155054
    Abstract: Disclosed is a method of manufacturing a negative electrode, wherein a negative electrode structure is electrochemically charged while being pressed with a plurality of pre-lithiation rolls in performing pre-lithiation of the negative electrode structure by a roll-to-roll method, and here, the pressing pressures of the plurality of pre-lithiation rolls are increased in a movement direction of the negative electrode structure. Since the pressing pressures are increased in the movement direction of the negative electrode structure, volume expansion, structural deformation, and damage to an active material due to the pre-lithiation may be prevented, and at the same time, the pre-lithiation may be performed uniformly, and thus it is preferable for improving lifespan characteristics of a negative electrode.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: November 26, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Oh Byong Chae, Yong Ju Lee, Ye Ri Kim
  • Publication number: 20240372074
    Abstract: The negative electrode active material contains: silicon-based particles; and silicon carbide distributed in the silicon-based particles. The content of the silicon carbide is about 0.1 parts by weight to 1 part by weight relative to the total of 100 parts by weight of the negative electrode active material.
    Type: Application
    Filed: February 28, 2024
    Publication date: November 7, 2024
    Inventors: Sang Hyun Lee, Donghyuk Kim, Su Min Lee, Yong Ju Lee