Patents by Inventor Jun Yoo

Jun Yoo 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: 12275287
    Abstract: The present invention relates to a vehicular heat management system capable of inducing an increase in refrigerant superheat degree without unconditionally turning off a compressor when the refrigerant superheat degree on the discharge side of a chiller is less than or equal to a lower limit value. The vehicular heat management system includes: a compressor; a condensing heat exchanger; an expansion valve; an evaporation heat exchanger; and a control part configured to, when a refrigerant superheat degree on a discharge side of the evaporation heat exchanger is lowered to a predetermined lower limit value or less, control, step by step, at least two devices directly involved in the increase and decrease of the refrigerant superheat degree to increase the refrigerant superheat degree until the refrigerant superheat degree exceeds the lower limit value.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: April 15, 2025
    Assignee: HANON SYSTEMS
    Inventors: Dae Yeop Jeong, Chul Soon Kim, Sang Jun Yoo, Hong Rae Jung, Tak Jun Kim, Goong Jun Nam, Hee Jin Ryu, Jae Woo Lee
  • Publication number: 20250103241
    Abstract: A DRAM is configured using a triple-mode memory cell that supports a computation mode, a memory mode, and a data conversion mode by one cell and converts modes as necessary, and an AI accelerator using the same is provided, so that a dataflow may be reconfigured according to a structure and a size of an AI neural network (so-called deep neural network) to be trained.
    Type: Application
    Filed: April 24, 2024
    Publication date: March 27, 2025
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoi Jun YOO, Sang Jin KIM
  • Patent number: 12252523
    Abstract: A peptide is described herein that has: (i) a simple structure compared to existing natural human erythropoietin, thus capable of easily passing through a tissue-blood barrier, (ii) excellent bioactivity with respect to cell-protecting activity, (iii) a low manufacturing cost, thus being economically advantageous, and (iv) no side effects on cell proliferation. Also, a pharmaceutical composition comprising the erythropoietin-derived peptide described herein as an active ingredient is described. The pharmaceutical composition may be used for preventing or treating cell damage-related illnesses, such as stroke, mechanical damage or ischemic damage to the nervous system, myocardial infarction, retinal damage, and diabetes. Also, the described pharmaceutical composition may be used for preventing cell damage.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: March 18, 2025
    Assignee: SYLUS CO., LTD.
    Inventors: Che il Moon, Seung Jun Yoo, Chang-Hun Lee, So Yeon Kim, Deok Ho Lee
  • Publication number: 20250061976
    Abstract: An apparatus for determining a thermal stability of a target material includes one or more processors, and a memory storing instructions that, when executed by the one or more processors, cause the one or more processors to acquire particle information of the target material, acquire molecular structure based on the particle information, acquire structural information from the molecular structure, and determine the thermal stability of the target material based on the structural information. A method of determining a thermal stability of a target material is also provided.
    Type: Application
    Filed: July 26, 2023
    Publication date: February 20, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Changsun Kong, Sungkyoung Kang, Eunhye Kang, Seung Jun Yoo, Kyu Hwang Lee, Jaein Lee
  • Publication number: 20250056955
    Abstract: A display device may include a display region and a non-display region disposed on a substrate, a pixel including a plurality of sub-pixels disposed in the display region, and a power line disposed between each of sub-pixels. A light-emitting element may be disposed on the power line, and the light-emitting element may be electrically connected to a first connection electrode. Each sub-pixel may include a plurality of transistors, and a second connection electrode may be connected to a driving transistor among the plurality of transistors.
    Type: Application
    Filed: August 7, 2024
    Publication date: February 13, 2025
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Won Joung KIM, Yeon Jun YOO
  • Patent number: 12217184
    Abstract: A method of accelerating training of a low-power, high-performance artificial neural network (ANN) includes (a) performing fine-grained pruning and coarse-grained pruning to generate sparsity in weights by a pruning unit in a convolution core of a cluster in a lower-power, high-performance ANN trainer; (b) selecting and performing dual zero skipping according to input sparsity, output sparsity, and the sparsity of weights by the convolution core, and (c) restricting access to a weight memory during training by allowing a deep neural network (DNN) computation core and a weight pruning core to share weights retrieved from a memory by the convolution core.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: February 4, 2025
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoi Jun Yoo, Sang Yeob Kim
  • Publication number: 20250026946
    Abstract: The present specification relates to an ink composition including a compound represented by Chemical Formula 1, a first solvent represented by Chemical Formula 2 and a second solvent represented by Chemical Formula 3.
    Type: Application
    Filed: September 22, 2023
    Publication date: January 23, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Su Hun Jeong, Eunhye Kang, Byungjae Kim, Jiyeon Shin, Seung Jun Yoo, Jumin Lee
  • Patent number: 12205624
    Abstract: An MRAM cell includes a switch unit configured to determine opening and closing thereof by a word line voltage and to activate a current path between a bit line and a bit line bar in an opened state thereof, first and second MTJs having opposite states, respectively, and connected in series between the bit line and the bit line bar, to constitute a storage node, and a sensing line configured to be activated in a reading mode of the MRAM cell, thereby creating data reading information based on a voltage between the first and second MTJs, wherein the first and second MTJs have different ones of a low resistance state and a high resistance state, respectively, in accordance with a voltage drop direction between the bit line and the bit line bar, thereby storing data of 0 or 1.
    Type: Grant
    Filed: December 23, 2022
    Date of Patent: January 21, 2025
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hoi Jun Yoo, Wenao Xie
  • Publication number: 20240426853
    Abstract: Provided is a modular experiment automation system including a main computer, a material synthesis module, and a material analysis module. The main computer interacts with a material synthesis module and a material analysis module. Upon a start request, it provides synthesis instructions for a target material. Once synthesis is complete, it instructs the analysis module to analyze the material. Based on the analysis results, if the error exceeds a threshold, it generates a new synthesis condition and re-initiates synthesis.
    Type: Application
    Filed: September 26, 2023
    Publication date: December 26, 2024
    Inventors: Sang Soo HAN, Donghun KIM, HYUK JUN YOO, NAYEON KIM, Seung Yong LEE
  • Publication number: 20240362848
    Abstract: Provided is a 3D rendering accelerator based on a DNN trained using a weight of the DNN using a plurality of 2D photos obtained by imaging the same object from several directions and then configured to perform 3D rendering using the same, the 3D rendering accelerator including a VPC configured to create an image plane for a 3D rendering target from a position and a direction of an observer, divide the image plane into a plurality of tile units, and then perform brain imitation visual recognition on the divided tile-unit images to determine to reduce a DNN inference range, an HNE including a plurality of NEs having different operational efficiencies and configured to accelerate DNN inference by dividing and allocating tasks, and a DNNA core configured to generate selection information for allocating each task to one of the plurality of NEs based on a sparsity ratio.
    Type: Application
    Filed: April 8, 2024
    Publication date: October 31, 2024
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoi Jun YOO, Dong hyeon HAN
  • Publication number: 20240330664
    Abstract: A signed bit slice generator includes a divider configured to divide input data, which is 2's complement data having N (where N is a natural number)-bit precision, and divide remaining bits excluding a sign bit of the input data into a predetermined number of bit slices, a sign bit adder configured to add a sign bit to each of the bit slices, a sign value setter configured to set a sign bit of an MSB slice among the bit slices to a sign value of the input data and to set sign bits of the remaining bit slices to positive sign values, and a sparse data compressor configured to perform sparse data compression on each of the signed bit slices, thereby generating a predetermined number of signed bit slices having the same number of bits where each bit slice includes a sign bit.
    Type: Application
    Filed: October 18, 2023
    Publication date: October 3, 2024
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoi Jun YOO, Dong Seok IM
  • Publication number: 20240320472
    Abstract: A low-power artificial intelligence (AI) processing system combining an artificial neural network (ANN) and a spiking neural network (SNN) includes an ANN including an artificial layer, an SNN configured to output an artificial layer of the ANN as the same operation result, a main controller configured to calculate an ANN computational cost and an SNN computational cost for each artificial layer, an operation domain selector configured to select an operation domain having a lower computational cost by comparing the ANN computational cost and the SNN computational cost, and an equivalent converter configured to form a combined neural network by converting the artificial layer of the ANN into a spiking layer of the SNN according to selection of an SNN operation domain of the operation domain selector. Therefore, there is no loss of accuracy when compared to the ANN.
    Type: Application
    Filed: March 22, 2024
    Publication date: September 26, 2024
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hoi Jun YOO, Seong Yon HONG
  • Patent number: 12079592
    Abstract: A deep neural network accelerator includes a feature loader that stores input features, a weight memory that stores a weight, and a processing element. The processing element applies 1-bit weight values to the input features to generate results according to the 1-bit weight values, receives a target weight corresponding to the input features from the weight memory, and selects a target result corresponding to the received target weight from among the results to generate output features.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: September 3, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoi-Jun Yoo, Jin Mook Lee
  • Publication number: 20240286432
    Abstract: A wheel cover includes a fixing unit fixed to a wheel of a vehicle, a variable unit coupled to and supported by the fixing unit and configured for being opened and closed, a first power unit configured to apply a first force acting on the variable unit, wherein the force changes depending on temperature, and a second power unit configured to apply a second force acting on the variable unit, wherein the second force changes depending on a wheel speed, wherein the variable unit is opened or closed depending on the first force generated by the first power unit and the second force generated by the second power unit.
    Type: Application
    Filed: July 21, 2023
    Publication date: August 29, 2024
    Applicants: Hyundai Motor Company, Kia Corporation, IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Ju Ho Kim, Jeong Hwan Park, Do Hyun Kong, Xu Han, Xinpei Ai, Yea Jun Yoo, Wei Wang, Beom Chan Kang
  • Publication number: 20240278622
    Abstract: The present invention relates to a vehicular air conditioning system and provides a vehicular air conditioning system capable of preventing overheating of an inverter that controls the rotation speed of an electric compressor without cutting off the inverter, and consequently preventing the stoppage of an air conditioner due to the cut-off of the inverter and the resultant stoppage of cooling of a passenger room. The vehicular air conditioning system includes an electric compressor, an inverter configured to control a rotation speed of the electric compressor, and a control part configured to execute control so that a refrigerant flow rate on an inlet side of the electric compressor increases when a temperature of the inverter is equal to or higher than a preset overheating warning temperature.
    Type: Application
    Filed: September 23, 2022
    Publication date: August 22, 2024
    Inventors: Hak Kyu KIM, In Hyeok KIM, Sang Jun YOO, Hong Rae JUNG
  • Patent number: 12049394
    Abstract: According to an aspect of the present disclosure, a multi-step height adjuster includes a base tube portion including a first base tube and a second base tube vertically reciprocating inside the first base tube; a spindle portion including a first spindle installed inside the first base tube to vertically reciprocate and a second spindle installed inside the second base tube to vertically reciprocate; and an adjustment portion installed in the spindle portion to transmit power to the spindle portion, wherein the first spindle and the second base tube are integrally moved.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 30, 2024
    Assignee: Samhongsa Co., Ltd.
    Inventors: Won Jun Yoo, Wan Soo Kim
  • Publication number: 20240251569
    Abstract: A semiconductor device includes: a substrate; a plurality of memory cells positioned over the substrate, each of the plurality of memory cells having a multi-layer structure including a memory pattern; a sealing layer pattern filling a lower portion of a space between the memory cells, the lower portion being positioned below a bottom surface of the memory pattern; a liner layer pattern formed along a surface of an upper portion of the space to partially fill the upper portion; and a dielectric layer pattern filling a remaining portion of the space unfilled by the sealing layer pattern and the liner layer pattern.
    Type: Application
    Filed: July 3, 2023
    Publication date: July 25, 2024
    Inventors: Chi Ho KIM, Kyung Seop KIM, Hun KIM, Young Cheol SONG, Chang Jun YOO, Jae Wan CHOI
  • Patent number: 11996846
    Abstract: A master latch circuit, including a first p-type transistor, a first n-type transistor, and a second n-type transistor connected in series; a first node connected to the first p-type transistor and the first n-type transistor, and a NAND circuit configured to receive a signal of the first node and a clock signal and output a result of a NAND operation to a second node, wherein a gate of the first p-type transistor is connected to the second node.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: May 28, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byoung Gon Kang, Woo Kyu Kim, Tae Jun Yoo, Dal Hee Lee
  • Patent number: 11987608
    Abstract: Provided is a composition for accelerating cell proliferation, including an erythropoietin-derived peptide as an active ingredient. Due to having a simpler structure than that of the existing natural human erythropoietin, the composition easily passes through the tissue-blood barrier, exhibits excellent cell protective activity, does not cause side effects of cell proliferation, and improves a hematopoietic function. Accordingly, the composition is used in the treatment or prevention of an anemic disorder.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: May 21, 2024
    Assignee: SYLUS CO., LTD.
    Inventors: Che Il Moon, So Yeon Kim, Seung Jun Yoo, Bong Ki Cho
  • Publication number: 20240156944
    Abstract: The present invention relates to an attenuated reovirus-based vaccine composition and a use thereof, the attenuated reovirus, according to the present invention, having the 251st to 455th amino acids of a sigma-1 protein of a capsid truncated such that when an epitope of an antigenic protein inducing cancer or infectious disease is introduced to the truncated site of the sigma-1 protein, the epitope of the antigenic protein is stably expressed in a cell, and thus the effect is gained of exhibiting an immune response such as producing a neutralizing antibody or inducing cell-mediated immunity. As such, the present invention is expected to be usefully employable as a vaccine composition for cancer or infectious disease by introducing the epitope of the antigenic protein to the truncated site of the sigma-1 protein of the attenuated reovirus according to the present invention.
    Type: Application
    Filed: March 22, 2022
    Publication date: May 16, 2024
    Inventors: Haeng Jun YOO, Tommy Michel ALAIN, Sang Kyoung HAN, Xiao XIANG, So Young KIM, Yeon Sook LEE, Ki Hoon SONG