Patents by Inventor Yong Ju

Yong Ju 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).

  • NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING THE NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE
    Publication number: 20200280059
    Abstract: The present invention relates to a negative electrode active material which includes a carbonaceous matrix including a first particle and a second particle, wherein the first particle includes a silicon core, an oxide layer which is disposed on the silicon core and includes SiOx (0<x?2), and a coating layer which covers at least a portion of a surface of the oxide layer and includes LiF, and the second particle is flaky graphite.
    Type: Application
    Filed: August 30, 2018
    Publication date: September 3, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun CHOI, So Ra LEE, Eun Kyung KIM, Yong Ju LEE, Sun Young SHIN, Hyeon Min SONG, Jee Eun KIM, Seo Young KWON, Il Geun OH, Jae Young LEE
  • Silicon-based active material-polymer composite and method for preparing same
    Patent number: 10763493
    Abstract: The present invention relates to a silicon-based active material-polymer composite which is secondary particles in which silicon-based particles as primary particles and conductive polymer particles having a modulus of elasticity of 10 Pa to 100 Pa at a temperature of 20° C. to 40° C. are uniformly mixed. The uniform mixture with the elastic conductive polymer particles provides for a buffering action against the stress generated by volumetric changes of the silicon-based particles.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: September 1, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Rae Hwan Jo, Eun Kyung Kim, Yong Ju Lee, Su Jin Park, Hyun Chul Kim, Jung Hyun Choi
  • Wearable apparatus, management server, management system having the same, and method for controlling thereof
    Patent number: 10764733
    Abstract: A management server is provided. The management server includes a communication interface unit configured to receive user environment information from a plurality of wearable apparatuses located in a preset space, an analyzer configured to analyze an environment state of the preset space based on a plurality of pieces of the received user environment information regarding the plurality of wearable apparatuses and determines an operation state of a common device located in the preset space according to the analyzed environment state, and a controller configured to control the communication interface unit so as to operate the common device according to the determined operation state.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: September 1, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Ji-yeon Shin, Young-ei Cho, Yong-ju Kim
  • NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING THE SAME
    Publication number: 20200274147
    Abstract: A negative electrode active material for a lithium secondary battery including complex particles including silicon oxide particles doped with a metal of lithium, magnesium, calcium or aluminum, a linear conductive material disposed between the doped silicon oxide particles, and a carbon-based binder that hinds the doped silicon oxide particles and the conductive material together. The carbon-based binder is a result of sintering. a carbon-based precursor. A method of preparing the negative electrode active material, a negative electrode and a lithium secondary battery are also provided. The negative electrode active material according to the present disclosure is superior at least in initial efficiency and life characteristics.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 27, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Su-Min LEE, Je-Young KIM, Il-Geun OH, Yong-Ju LEE
  • NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING THE SAME, AND SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE
    Publication number: 20200266424
    Abstract: The present invention relates to a negative electrode active material including a carbonaceous matrix having a plurality of nano-particles, wherein the nano-particles have a silicon core, an oxide layer disposed on the silicon core and including SiOx (0<x?2), and a coating layer covering at least a portion of the surface of the oxide layer and including LiF.
    Type: Application
    Filed: November 9, 2018
    Publication date: August 20, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun CHOI, Seung Youn CHOI, Eun Kyung KIM, Yong Ju LEE, Rae Hwan JO, Su Min LEE, Dong Hyuk KIM, Se Mi PARK, Il Geun OH
  • METHOD AND APPARATUS FOR CONTROL OF RANDERING MULTIOBJECT OR MULTICHANNEL AUDIO SIGNAL USING SPATIAL CUE
    Publication number: 20200267488
    Abstract: The present research relates to controlling rendering of multi-object or multi-channel audio signals. The present research provides a method and apparatus for controlling rendering of multi-object or multi-channel audio signals based on spatial cues in a process of decoding the multi-object or multi-channel audio signals. To achieve the purpose, the method suggested in the research controls rendering in a spatial cue domain in the process of decoding the multi-object or multi-channel audio signals.
    Type: Application
    Filed: May 8, 2020
    Publication date: August 20, 2020
    Inventors: Seung-Kwon BEACK, Jeong-Il SEO, Dae-Young JANG, Tae-Jin LEE, Yong-Ju LEE, Jin-Woo HONG, Jin-Woong KIM
  • Symbol button for vehicle and manufacturing method thereof
    Patent number: 10741340
    Abstract: A symbol button for a vehicle includes: a button body; a button surface portion positioned at an upper portion of the button body; a symbol printing portion positioned on the button surface portion; an anti-plating portion positioned at a lower portion of the button body; and a metal plating layer positioned at the outside of a button excluding the symbol printing portion and the anti-plating portion.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: August 11, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, DAEYANG PLATECH INC.
    Inventors: Woo Chul Jung, Choon Soo Lee, Kyoung Sil Lee, Jae Sik Seo, Sung Ho Yoon, Yong Ju Gil, Won Gyoum Kim, Han Nam
  • LONG-LIFE AND ULTRA-HIGH ENERGY DENSITY LITHIUM SECONDARY BATTERY
    Publication number: 20200251728
    Abstract: A lithium secondary battery, wherein there is a pre-lithiated negative electrode such that a total irreversible capacity of a positive electrode is greater than a total irreversible capacity of the negative electrode while satisfying 150< (negative electrode discharge capacity/lithium secondary battery discharge capacity)×100<300, and a relative potential of the negative electrode with respect to lithium metal in an operating voltage range of the lithium secondary battery is in a range of ?0.1 V to 0.7 V. Such a lithium secondary battery is capable of maintaining a capacity retention of 60% or more even after 500 cycles or more while achieving an energy density per volume of 800 Wh/L or more.
    Type: Application
    Filed: April 17, 2020
    Publication date: August 6, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jun Hyuk SONG, Eun Kyung KIM, Yong Ju LEE, Sang Wook WOO, Ju Ho CHUNG, Suk In NOH
  • SILICON-CARBON COMPLEX AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME
    Publication number: 20200243853
    Abstract: A silicon-carbon complex comprising carbon-based particles and silicon-based particles, wherein the silicon-based particles are dispersed and positioned on surfaces of the carbon-based particles, the carbon-based particles have a specific surface area of 0.4 m2/g to 1.5 m2/g, and the silicon-based particles are doped with one or more elements selected from the group consisting of Mg, Li, Ca, and Al, and a negative electrode active material for lithium secondary battery comprising the same.
    Type: Application
    Filed: October 26, 2018
    Publication date: July 30, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Su Min LEE, Eun Kyung KIM, Yong Ju LEE, Rae Hwan JO, Dong Hyuk KIM, Se Mi PARK
  • METHOD OF PREPARING NEGATIVE ELECTRODE ACTIVE MATERIAL
    Publication number: 20200243836
    Abstract: The present invention relates to a method of preparing a negative electrode active material which includes forming a mixture by mixing Li2O and SiOx(0<x<2) particles including SiO2, forming a reaction product by performing a heat treatment on the mixture at 400° C. to 600° C., and removing a portion of lithium silicate in the reaction product by washing the reaction product.
    Type: Application
    Filed: October 19, 2018
    Publication date: July 30, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Il Geun OH, Eun Kyung KIM, Yong Ju LEE, Rae Hwan JO, Su Min LEE, Jung Hyun CHOI, Dong Hyuk KIM, Se Mi PARK
  • Noise improvement in DNA sequencing circuit by FinFET-like nanopore formation
    Patent number: 10724065
    Abstract: The disclosure generally relates to a deoxyribonucleic acid (DNA) sequencing circuit having a controllable pore size and a lower membrane capacitance and noise floor relative to biological nanopore devices. For example, design principles used to fabricate a fin-shaped field effect transistor (FinFET) may be applied to form, on a first wafer, a nanopore that has a desired pore size in a silicon-based membrane. Electrodes and an interconnect embedded with an amplifier and analog-to-digital converter (ADC) may be formed on a separate second wafer, wherein the first wafer and the second wafer may then be bonded and further processed to form a sensing device that includes appropriate wells and pores to be used in a DNA sequencing circuit.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: July 28, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Yong Ju Lee, Joung Won Park
  • NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20200235383
    Abstract: A negative electrode which satisfies a need for high energy density while allowing high-speed charging of a battery. A lithium secondary battery including the negative electrode is also provided. The negative electrode includes: a first negative electrode active material having a first core including a silicon oxide-based composite and a carbon coating layer covering the first core including a silicon oxide-based composite; and a second negative electrode active material having a second core including an artificial graphite and a carbon coating layer covering the second core.
    Type: Application
    Filed: March 31, 2020
    Publication date: July 23, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sun-Young SHIN, Dong-Hyuk KIM, Yong-Ju LEE, Je-Young KIM, Su-Min LEE
  • BINAURAL RENDERING METHOD AND APPARATUS FOR DECODING MULTI CHANNEL AUDIO
    Publication number: 20200234718
    Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
    Type: Application
    Filed: April 6, 2020
    Publication date: July 23, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju LEE, Jeong Il SEO, Jae Hyoun YOO, Seung Kwon BEACK, Jong Mo SUNG, Tae Jin LEE, Kyeong Ok KANG, Jin Woong KIM, Tae Jin PARK, Dae Young JANG, Keun Woo CHOI
  • NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, NEGATIVE ELECTRODE INCLUDING THE SAME, AND LITHIUM ION SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE
    Publication number: 20200227731
    Abstract: The present disclosure relates to a negative electrode material that may be used as a negative electrode active material. The negative electrode material includes a silicon oxide material containing a metal (M)-silicate and a carbonaceous material. According to an embodiment of the present disclosure, the negative electrode material may include the silicon oxide material containing a metal (M)-silicate and the carbonaceous material mixed with each other at a predetermined ratio. The negative electrode active material according to the present disclosure comprises a composite of a carbonaceous material having a broad particle size distribution with a metal-silicate, and thus provides improved electrical conductivity and life characteristics.
    Type: Application
    Filed: January 30, 2019
    Publication date: July 16, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sun-Young SHIN, Je-Young KIM, Yong-Ju LEE, Jung-Hyun CHOI
  • Electrode Having No Current Collector and Secondary Battery Including the Same
    Publication number: 20200227740
    Abstract: An electrode for batteries that does not include a metal-film-type current collector is disclosed herein. In some embodiments, the electrode comprises a composite having a core-shell structure including a core having an electrode active material, and a metal material coated on or doped in the surface of the core. A secondary battery having the electrode has increased capacity and energy density and exhibits improved lifespan characteristics.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 16, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Se Mi Park, Eun Kyung Kim, Yong Ju Lee, Sun Young Shin, Dong Hyuk Kim
  • Automatic Winding Device
    Publication number: 20200223657
    Abstract: An automatic winding device includes a lower casing having a shaft, a bobbin rotatably disposed on the shaft with a wire wound around the bobbin, a spring to provide a rotational force to the bobbin, a track cover coupled to the bobbin to rotate with the bobbin and having a track formed thereon, a pin structure positioned between the bobbin and track cover and having a pin for controlling bobbin rotation, and a pin guide for guiding linear motion of the pin structure. The track cover includes an inner track, an outer track spaced apart from the inner track, a connection track for connecting the inner and outer tracks, and a stop track for connecting the inner and outer tracks. The stop track has a bent portion for stopping the pin. An end of the connection track near the outer track is connected to the outer track and stop track.
    Type: Application
    Filed: August 30, 2019
    Publication date: July 16, 2020
    Inventors: Yong Ju Ji, Jae Baek Jang, Jung Ho Kang, Jun Hee Han
  • Negative electrode active material and lithium secondary battery including the same
    Patent number: 10714741
    Abstract: The present invention relates to a silicon-carbon-based composite negative electrode active material, and a negative electrode for a secondary battery and a lithium secondary battery including the same, and particularly to a silicon-carbon-based composite negative electrode active material, in which physical stability is improved by including a carbon-based core capable of intercalating and deintercalating lithium ions and at least one silicon particle included in the carbon-based core and disposed in the form of being distributed in an outer portion of the carbon-based core, and a negative electrode for a secondary battery and a lithium secondary battery in which life characteristics are improved by including the same.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: July 14, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jung Hyun Choi, Yong Ju Lee, Eun Kyung Kim
  • NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME
    Publication number: 20200220156
    Abstract: A negative electrode including: a negative electrode current collector; and a negative electrode active material layer on at least one surface of the negative electrode current collector. The negative electrode is pre-lithiated and the negative electrode active material layer includes a silicon-based material and a carbonaceous material. In addition, a graphene sheet having 2 layers to 15 layers is on the negative electrode active material layer. The negative electrode is advantageous in terms of storage and safety. A lithium secondary battery using the negative electrode shows reduced initial irreversibility, and thus provides increased efficiency.
    Type: Application
    Filed: December 20, 2018
    Publication date: July 9, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sun-Young SHIN, Jun-Hyuk SONG, Yong-Ju LEE, Je-Young KIM
  • Lithium Metal Oxide, Negative Electrode Active Material For Lithium Secondary Battery Comprising The Same, And Method Of Preparing The Same
    Publication number: 20200220167
    Abstract: A method of preparing a lithium metal oxide having a nickel oxide layer formed on a surface thereof includes (1) complexing a nickel precursor onto a surface of a lithium metal oxide; and (2) calcining, through a heat treatment, the lithium metal oxide—the surface of which is complexed with the nickel precursor—obtained in step (1).
    Type: Application
    Filed: January 10, 2020
    Publication date: July 9, 2020
    Applicants: LG Chem, Ltd., Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Ye Ri Kim, Yong Mook Kang, Mi Ru Jo, Eun Kyung Kim, Yong Ju Lee, Rae Hwan Jo
  • Wireless communication remote controller
    Patent number: D890108
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: July 14, 2020
    Assignee: MIRO CO., LTD.
    Inventors: Dong Jin Seo, Yong Ju Oh, Min Seok Kim