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 FOR LITHIUM SECONDARY BATTERY AND PREPARATION METHOD THEREOF
    Publication number: 20200403235
    Abstract: A negative electrode active material for a lithium secondary battery, which includes a silicon-based particle represented by M-SiOx, wherein M is Li, Mg, Ca, Al, or Ti, and 0?x<2, wherein the M-SiOx includes an amorphous phase at 20 wt % to 70 wt % based upon a total weight of the M-SiOx, thereby exhibiting excellent initial efficiency and lifespan characteristics, and a preparation method thereof.
    Type: Application
    Filed: November 22, 2018
    Publication date: December 24, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Yong Ju LEE, Rae Hwan JO, Su Min LEE, Dong Hyuk KIM, Se Mi PARK
  • Silicon-based negative electrode active material and method for preparing the same
    Patent number: 10873071
    Abstract: A negative electrode active material of the present invention includes a core containing silicon-based nanoparticles and polymer carbides distributed on the nanoparticles, wherein the core has a size of 30-300 nm, and such a negative electrode active material is prepared using a method including dispersing a suspension in which silicon-based nanoparticles and water-soluble polymer are added to a solvent using ultrasonic waves; and preparing a core including the silicon-based nanoparticles having the polymer carbides on the surface by carbonizing the water-soluble polymer. As a result, a negative electrode active material having a significantly low volume expansion rate compared with general non-carbon-based negative electrode active materials, and having excellent electric conductivity may be provided.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: December 22, 2020
    Inventors: Hyun Chul Kim, Yong Ju Lee, Yoon Ah Kang, Eun Kyung Kim
  • Air purifier
    Patent number: 10870078
    Abstract: An air cleaner according to an exemplary embodiment of the present invention includes a water tank in which water is contained, a rotating shaft which is mounted in the water tank and rotates, and a rotating body which is coupled to the rotating shaft to rotate in a longitudinal direction of the rotating shaft as a rotational axis and formed with a plurality of rotating blades capable of collecting air, in which the rotating shaft is obliquely mounted to form a predetermined angle with a water surface formed by the water contained in the water tank.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: December 22, 2020
    Assignee: MIRO CO. LTD.
    Inventors: Dong Jin Seo, Yong Ju Oh, Min Seok Kim, Jeong Won Lee
  • Memory system and wear-leveling method using the same
    Patent number: 10871919
    Abstract: A memory system may include a memory device comprising a plurality of memory banks, and a memory controller suitable for allocating data of successive logical addresses to the respective memory banks, and controlling read/write operations of the data, wherein the memory controller groups pages of the respective memory banks, and performs a wear-leveling operation based on the read/write operations of the data on each group of the pages.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: December 22, 2020
    Assignee: SK hynix Inc.
    Inventors: Do-Sun Hong, Dong-Gun Kim, Yong-Ju Kim
  • Wireless Battery Management System, Node For Wireless Communication, And Method Of Transmitting Data
    Publication number: 20200396688
    Abstract: The present disclosure relates to a wireless battery management system which ensures stability when obtaining battery data through wireless communication. The battery management system includes a manager node operating a primary channel and a secondary channel based on wireless communication and obtaining battery data from a monitor node by using the primary channel or the secondary channel and a monitor node connected to a battery module to collect battery data including one or more of a current, a voltage, a temperature, and self-diagnosis data of the battery module, transmit the collected battery data to the manager node through the primary channel, and when the transmission of the battery data through the primary channel fails, transmit the battery data to the manager node through the secondary channel.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 17, 2020
    Inventors: Ju Pyo HONG, Ki Suk CHO, Heung Lyeol LEE, Kyu Ho KIM, Seung Jun CHOI, Deog Soo KIM, Yong Ju SEON, Hee Jin LEE, Young Ho SEO, Jong Chan KIM
  • Resistance variable memory apparatus, and circuit and method for operating therefor
    Patent number: 10866734
    Abstract: A resistance variable memory apparatus may include a memory circuit configured to include a plurality of blocks, each including a plurality of memory cells. The resistance variable memory apparatus may include a disturbance preventing circuit configured to be driven based on a counting signal corresponding to the number of write accesses for each of the plurality of blocks, a write command, and an address signal and to allow scrubbing to be performed on a memory cell having a preset scrubbing condition when the counting signal satisfied with the scrubbing condition is output based on the scribing condition according to a physical position of the memory cell in the block.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 15, 2020
    Assignee: SK hynix Inc.
    Inventors: Do-Sun Hong, Donggun Kim, Yong Ju Kim, Sang Gu Jo
  • NEGATIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD THEREOF, NEGATIVE ELECTRODE INCLUDING THE NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE
    Publication number: 20200388833
    Abstract: A negative electrode active material including a core containing SiOx (0?x<2) and a lithium-containing compound, and a shell disposed on the core and containing SiOx (0?x<2) and magnesium silicate.
    Type: Application
    Filed: January 30, 2019
    Publication date: December 10, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Su Min LEE, Yong Ju LEE, Rae Hwan JO, Dong Hyuk KIM
  • Linear expander and cryogenic refrigeration system including the same
    Patent number: 10852040
    Abstract: Disclosed is a linear expander includes: a body portion including a suction hole through which a fluid having a first pressure flows in, a discharge hole through which the fluid flows out with a second pressure that is lower than the first pressure, and first and second holes connecting an expansion space formed between the suction hole and the discharge hole, a first linear generating portion and a second linear generating portion respectively causing pistons provided in the first hole and the second hole to linearly reciprocate to generate an induced electromotive force with an expansion force generated when the fluid having the first pressure expands to the fluid having the second pressure, a suction valve opening and closing the suction hole, and a discharge valve and closing the discharge hole.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: December 1, 2020
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Junseok Ko, Hyo-Bong Kim, Seong-Je Park, Han-Kil Yeom, Yong-Ju Hong, Sehwan In
  • METHOD OF TRAINING IMAGE DEEP LEARNING MODEL AND DEVICE THEREOF
    Publication number: 20200372350
    Abstract: Disclosed herein is an image deep learning model training method. The method includes sampling a twin negative comprising a first negative sample and a second negative sample by selecting the first negative sample with a highest similarity out of an anchor sample and a positive sample constituting a matching pair in each class and by selecting the second negative sample with a highest similarity to the first negative sample, and training the samples to minimize a loss of a loss function in each class by utilizing the anchor sample, the positive sample, the first and second negative samples for each class. The first negative sample is selected in a different class from a class comprising the matching pair, and the second negative sample is selected in a different class from classes comprising the matching pair and the first negative sample.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 26, 2020
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, NFORMATION TECHNOLOGY UNIVERSITY (ITU)
    Inventors: Yong Ju CHO, Jeong Il SEO, Rehan Hafiz, Mohsen Ali, Muhammad Faisal, Aman Irshad
  • METHOD AND APPARATUS FOR IMAGE PREPROCESSING
    Publication number: 20200372620
    Abstract: The present invention provides a method for image preprocessing, the method including: identifying a plurality of input images to process image registration; selecting at least one transformation method among histogram equalization and gamma transformation in consideration of hue and brightness values of the plurality of input images; processing the histogram equalization on the plurality of input images in response to the histogram equalization method being selected; and processing the gamma transformation on the plurality of input images, in response to the gamma transformation method being selected.
    Type: Application
    Filed: May 22, 2020
    Publication date: November 26, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Ju CHO, Soon Heung JUNG, Jeong Il SEO
  • SILICON-BASED PARTICLE-POLYMER COMPOSITE AND NEGATIVE ELECTRODE ACTIVE MATERIAL COMPRISING THE SAME
    Publication number: 20200365882
    Abstract: The present invention relates to a silicon-based particle-polymer composite, which includes silicon-based particles; and a polymer coating layer formed on the silicon-based particles, in which the polymer coating layer includes metal-substituted poly(acrylic acid) in which hydrogen atoms in carboxyl groups of the poly(acrylic acid) chain are substituted with one or more selected from the group consisting of K, Na and Li.
    Type: Application
    Filed: November 22, 2018
    Publication date: November 19, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Se Mi PARK, Je Young KIM, Yong Ju LEE, Rae Hwan JO, Su Min LEE, Jung Hyun CHOI
  • NEGATIVE ELECTRODE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND NEGATIVE ELECTRODE AND LITHIUM SECONDARY BATTERY WHICH INCLUDE THE NEGATIVE ELECTRODE ACTIVE MATERIAL
    Publication number: 20200350571
    Abstract: The present invention relates to a negative electrode active material including a silicon-based composite and a carbon-based material, wherein the silicon-based composite includes SiOx (0?x?2) including pores, a polymer disposed in the pores, and a metal compound disposed on a surface of the SiOx (0?x?2) or on the surface and inside of the SiOx (0?x?2), wherein the metal compound is a compound including at least one element selected from the group consisting of lithium (Li), magnesium (Mg), calcium (Ca), and aluminum (Al), a method of preparing the same, and a negative electrode and a lithium secondary battery which include the negative electrode active material.
    Type: Application
    Filed: February 27, 2019
    Publication date: November 5, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Su Min LEE, Je Young KIM, Yong Ju LEE, Sun Young SHIN
  • Apparatus and method for providing content
    Patent number: 10826956
    Abstract: A method of receiving content in a client is provided. The method may include receiving, from a server, a spatial set identifier (ID) corresponding to a tile group including at least one tile, sending, to the server, a request for first content corresponding to metadata, and receiving, from the server, the first content corresponding to the request.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: November 3, 2020
    Assignee: IDEAHUB INC.
    Inventors: Seong Yong Lim, Joo Myoung Seok, Sang Woo Ahn, Yong Ju Cho, Ji Hun Cha
  • Negative Electrode for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
    Publication number: 20200343527
    Abstract: Disclosed is a negative electrode for a lithium secondary battery which includes: a negative electrode current collector; a first negative electrode mixture layer positioned on at least one surface of the negative electrode current collector and including a first negative electrode active material, a polymer binder and a conductive material; and a second negative electrode mixture layer positioned on the top surface of the first negative electrode mixture layer and including a second negative electrode active material, a polymer binder and a conductive material, wherein the second negative electrode active material has a smaller water contact angle as compared to the first negative electrode active material, and at least one of the first negative electrode active material and the second negative electrode active material is surface-modified.
    Type: Application
    Filed: November 23, 2018
    Publication date: October 29, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Su-Min Lee, Eun-Kyung Kim, Je-Young Kim, Yong-Ju Lee, Rae-Hwan Jo
  • NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING THE SAME, AND SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE
    Publication number: 20200343544
    Abstract: The present invention relates to a negative electrode active material including a spherical carbon-based particle, and a carbon layer disposed on the spherical carbon-based particle and including a nano-particle, wherein the nano-particle has 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: October 29, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hyun CHOI, Yong Ju LEE, Eun Kyung KIM, Rae Hwan JO, Su Min LEE, Dong Hyuk KIM, Se Mi PARK, Il Geun OH
  • Memory system and error correcting method thereof
    Patent number: 10795763
    Abstract: A memory system includes a plurality of memory chips suitable for storing data and an error correction code thereof, an error correction circuit suitable for detecting and correcting error bits of data, which are read from the plurality of memory chips, based on an error correction code of the read data, an address storage circuit suitable for storing addresses of first data, among the read data, the first data having a number of detected error bits greater than or equal to a first number, and a failed chip detection circuit suitable for, when the number of the stored addresses is greater than or equal to a second number, detecting a failed memory chip where a chip-kill occurs by writing test data in the plurality of memory chips and reading back the written test data.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: October 6, 2020
    Assignee: SK hynix Inc.
    Inventors: Yong-Ju Kim, Do-Sun Hong, Dong-Gun Kim
  • Method and apparatus for transmitting and receiving of the object-based audio contents
    Patent number: 10796707
    Abstract: The present invention relates to a system for transmitting and receiving audio, particularly, to a method and apparatus for transmitting and receiving of object-based audio contents, which packetizes audio objects having the same characteristic. To achieve the above, the present invention includes filtering a plurality of ESs according to common information, adding a packet header to the respective filtered ESs and generate ES packets, aggregating all the generated ES packets and then adding a multi-object packet header to the aggregated ES packets to generate an object packet, and multiplexing the generated object packet, packetizing the multiplexed object packet according to a transmitting media and transmitting the packetized object packet.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: October 6, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong Ju Lee, Tae Jin Lee, Jae-Hyoun Yoo, Kyeongok Kang, Jin Woong Kim, Chieteuk Ahn
  • NEGATIVE ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE INCLUDING THE NEGATIVE ELECTRODE ACTIVE MATERIAL, AND SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE
    Publication number: 20200313173
    Abstract: A negative electrode active material which includes a core including SiOx (0<x<2), a shell disposed on the core and includes lithium silicate, and a coating layer disposed on the shell and includes carbon nanotubes. Also, a method of preparing a negative electrode active material as well as a negative electrode and a battery including the same.
    Type: Application
    Filed: October 19, 2018
    Publication date: October 1, 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
  • VISION-BASED OBJECT RECOGNITION DEVICE AND METHOD FOR CONTROLLING THE SAME
    Publication number: 20200287739
    Abstract: Embodiments of the present disclosure relate to vision-based object recognition devices and methods for controlling the same. According to an embodiment of the present disclosure, an electronic device may comprise a camera, at least one motor, a communication interface, at least one processor, and a memory electrically connected with the processor, wherein the memory may store commands that, when executed by the processor, cause the processor to identify a motion of an external object using a first image obtained by controlling the camera, obtain first direction information based on the identified motion of the external object, drive the at least one motor so that the camera faces a direction determined according to the first direction information, and identify a second electronic device from a second image obtained by controlling the camera facing the determined direction.
    Type: Application
    Filed: May 4, 2020
    Publication date: September 10, 2020
    Inventors: Yong-Ju YU, Chan-Won LEE, Si-Hak JANG
  • Electric heater and humidifier device
    Patent number: D898885
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: October 13, 2020
    Assignee: MIRO CO., LTD.
    Inventors: Dong Jin Seo, Yong Ju Oh, Min Seok Kim