Patents by Inventor Ji-Hoon Cho

Ji-Hoon Cho 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: 20230076888
    Abstract: The present disclosure relates to a system for detecting an anomaly and a method for setting a threshold thereof. The method includes setting a minimum true positive rate (TPR) and a differentiation slope based on a user input, creating a receiver operating characteristic (ROC) curve using anomaly data and normal data, estimating a true negative rate (TNR) from the ROC curve based on the minimum TPR and the differentiation slope, and estimating and setting the threshold based on the estimated TNR.
    Type: Application
    Filed: March 23, 2022
    Publication date: March 9, 2023
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, Seoul National University R&DB Foundation
    Inventors: Ji Hoon KIM, Sung Soo PARK, Chang Woo CHUN, Song Eun LEE, Hyun Soo CHO, Jun Yeob KIM, Sang Goo LEE
  • Publication number: 20230068125
    Abstract: The present disclosure relates to a part including silicon carbide layer and manufacturing method thereof, and the manufacturing method according to the present disclosure includes preparing a graphite substrate, and laminating a silicon carbide layer on a surface of the graphite substrate, wherein at the laminating the silicon carbide layer, the silicon carbide layer is laminated such that the thickness of the silicon carbide layer is 0.01 to 1 times the thickness of the graphite substrate, thereby improving the durability of the part including silicon carbide layer.
    Type: Application
    Filed: January 28, 2021
    Publication date: March 2, 2023
    Inventors: Jong-hwa WEON, Bun-hei KOO, In-su HWANG, Nam-ju KIM, Myung-jin KO, Ji-hoon LEE, Hyeon-jun CHO
  • Publication number: 20230053008
    Abstract: A system for detecting a defective battery using wireless communications. The system includes first sensors and a first master device. The first sensors are matched on a 1:1 basis with first battery modules to monitor the first battery modules. The first master device communicates with the first sensors. The respective first sensors each include a first monitoring circuit which collects a primary data on a 1:1-matched first battery module in a monitoring mode, and a first communicating circuit which outputs the primary data to the first master device in a communicating mode. The first monitoring circuit is turned off in the communicating mode. The first communicating circuit is turned off in the monitoring mode.
    Type: Application
    Filed: May 27, 2021
    Publication date: February 16, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Ji Won Hwang, Hyun Ki Cho, Sang Hoon Lee, Jae Dong Park, Hu Jun Lee, Jung Hyun Kwon
  • Patent number: 11581548
    Abstract: Disclosed herein is a method of manufacturing a support for a catalyst of a fuel cell. The method may include preparing an admixture including a carbon material and a cerium precursor into a reactor, providing the admixture in a reactor, raising a temperature of the reactor to a predetermined temperature, and introducing water vapor into the reactor to perform an activation reaction of the carbon material.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: February 14, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Geon Hee Cho, Ji Hoon Yang, Kook Il Han, Jin Seong Choi
  • Patent number: 11567590
    Abstract: According to one embodiment of the present invention, there is provided an electronic pen including a first pen module which includes a first pen core including a writing material used for a medium and a pattern sensing unit configured to acquire a handwritten image of a user in order for the electronic pen to acquire first location information that is location information of the electronic pen with respect to the medium, a second pen module which generates at least one of a magnetic field and an electronic field in order for the electronic pen to acquire second location information that is location information of the electronic pen with respect to an electronic device, a main body in which the first pen module is disposed at a first end portion thereof and the second pen module is fixed to at least one of the first end portion and a second end portion thereof and which has a cavity therein, and a control unit which generates a signal for controlling the first pen module and the second pen module.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: January 31, 2023
    Assignee: NEOLAB CONVERGENCE INC.
    Inventors: Sang Gyu Lee, Ji Wan Park, Bong Ki Park, Sung Hoon Ha, Sang Ho Kim, Sang Won Cho
  • Patent number: 11561751
    Abstract: A display device includes a signal receiver configured to receive an image signal; a display including a plurality of modules each including a plurality of light sources, and display an image based on the received image signal; and a controller configured to perform first uniformity calibration between light sources within each individual module with regard to the modules, and second uniformity calibration between the modules, wherein the controller controls the first uniformity calibration to be applied to the image signal received in the signal receiver based on a first coefficient determined for each of the light sources within each individual module, controls the second uniformity calibration to be applied to the image signal subjected to the first uniformity calibration based on a second coefficient determined for each of the modules, and controls a calibrated image to be displayed based on the image signal subjected to the second uniformity calibration.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: January 24, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji-yong Park, Min-jung Kim, Sang-kyun Im, Young-hoon Cho
  • Publication number: 20230020540
    Abstract: The present disclosure relates to an organic electroluminescent device comprising an anode, a cathode, and an organic layer between the anode and the cathode, wherein the organic layer comprises one or more light-emitting layers; and at least one light-emitting layer comprises one or more dopant compounds and two or more host compounds. The organic electroluminescent device of the present disclosure has low driving voltage, high color purity, high luminous efficiency, and a long lifespan.
    Type: Application
    Filed: February 24, 2022
    Publication date: January 19, 2023
    Inventors: Seon-Woo LEE, Su-Hyun LEE, Young-Kwang KIM, Hee-Choon AHN, Doo-Hyeon MOON, Ji-Song JUN, Jae-Hoon SHIM, Kyoung-Jin PARK, Nam-Kyun KIM, Kyung-Hoon CHOI, Chi-Sik KIM, Young-Jun CHO, Bit-na-ri KIM
  • Patent number: 11558171
    Abstract: A method for encryption according to an embodiment includes generating a ciphertext for a secret key that is an integer vector by using an integer-based first homomorphic encryption algorithm, generating a key stream that is the integer vector from a nonce and the secret key by using a key stream generator, encoding the key stream by using a message encoding function of the first homomorphic encryption algorithm, encoding a message that is a real vector by using a message encoding function of a real number-based second homomorphic encryption algorithm, generating a ciphertext for the message by using a result of the encoding of the key stream and a result of the encoding of the message, and transmitting the nonce, the ciphertext for the secret key, and the ciphertext for the message to an apparatus for converting a ciphertext.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: January 17, 2023
    Assignees: SAMSUNG SDS CO., LTD., Korea Advanced Institute of Science and Technology
    Inventors: Joo Hee Lee, Duk Jae Moon, Hyo Jin Yoon, Ji Hoon Cho, Eun Kyung Kim, Seong Kwang Kim, Joo Young Lee, Jin Cheol Ha, Won Seok Choi
  • Publication number: 20220415769
    Abstract: A method of manufacturing a semiconductor device having a semiconductor die within an extended substrate and a bottom substrate may include bonding a bottom surface of a semiconductor die to a top surface of a bottom substrate, forming an adhering member to a top surface of the semiconductor die, bonding an extended substrate to the semiconductor die and to the top surface of the bottom substrate utilizing the adhering member and a conductive bump on a bottom surface of the extended substrate and a conductive bump on the bottom substrate. The semiconductor die and the conductive bumps may be encapsulated utilizing a mold member. The conductive bump on the bottom surface of the extended substrate may be electrically connected to a terminal on the top surface of the extended substrate. The adhering member may include a laminate film, a non-conductive film adhesive, or a thermal hardening liquid adhesive.
    Type: Application
    Filed: August 29, 2022
    Publication date: December 29, 2022
    Inventors: Jae Yun Kim, Gi Tae Lim, Woon Kab Jung, Ju Hoon Yoon, Dong Joo Park, Byong Woo Cho, Gyu Wan Han, Ji Young Chung, Jin Seong Kim, Do Hyun Na
  • Patent number: 11539656
    Abstract: A method of providing information on a social networking service (SNS) activity to a chatroom, performed by a server, includes: providing an SNS for each of a plurality of anonymous profiles created to be interlinked with an account for an instant messaging service (IMS); receiving information on an SNS activity performed through a first anonymous profile selected corresponding to a chatroom of the IMS, among the plurality of anonymous profiles of a user participating in the chatroom; providing the information on the SNS activity performed through the first anonymous profile to the chatroom; receiving a request to change the profile of the user selected corresponding to the chatroom from the first anonymous profile to a second anonymous profile; receiving information on an SNS activity performed through the second anonymous profile; and providing the information on the SNS activity performed through the second anonymous profile to the chatroom.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: December 27, 2022
    Assignee: KAKAO CORP.
    Inventors: Ji Sun Lee, Hyun Young Park, Seong Mi Lim, Young Min Park, Doo Won Lee, Eun Jung Ko, Jae Lin Lee, Kwang Hui Lim, Ki Yong Shim, Sun Ho Choi, Kwang Hoon Choi, Hwa Young Lee, Jae Gil Lee, Kyong Rim Kim, Soo Min Cho
  • Patent number: 11518302
    Abstract: The present disclosure provides an auxiliary handle device configured to be used in entering or exiting a vehicle. The auxiliary handle device includes a cover unit including first and second movement guides, which define a movement path, a guide frame unit, which is connected to the cover unit so as to be slidably moved along a rail of a mounting plate mounted on a roof of the vehicle, and a handle unit, which is mounted on the cover unit so as to be selectively projected downwards from the mounting plate, the handle unit including a first guide pin and a second guide pin, which are respectively mounted in the first movement guide and the second movement guide such that the first and second guide pins are moved while being rotated so as to project the handle unit downwards from the mounting plate.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: December 6, 2022
    Inventors: Min Ho Cho, Ji Ah Kim, Jin Ho Hwang, Ha Ryung Park, Jae Hoon Jung
  • Patent number: 11509460
    Abstract: A method for performing a matrix multiplication operation being secure against side-channel attacks according to one embodiment, which is performed by a computing device comprising one or more processors and a memory storing one or more programs to be executed by the one or more processors, includes shuffling an order of execution of multiplication operations between elements of a first matrix and elements of a second matrix for a matrix multiplication operation between the first matrix and the second matrix; and performing the matrix multiplication operation based on the shuffled order of execution.
    Type: Grant
    Filed: October 26, 2019
    Date of Patent: November 22, 2022
    Assignees: SAMSUNG SDS CO.. LTD., Kookmin University Industry Academnv Cooperation Foundation
    Inventors: Kyu-Young Choi, Duk-Jae Moon, Ji-Hoon Cho, Dong Guk Han, Bo Yeon Sim, Jae Geun Moon, Ae Sun Park
  • Publication number: 20220368518
    Abstract: A method for generating a key stream according to an embodiment includes generating r round keys that are each N-dimensional integer vectors including elements of an integer set defined based on a prime number t, based on a random bit string, an encryption counter, and a secret key that is an N-dimensional integer vector consisting of elements of the integer set , generating a first round output vector x1 by performing a modular addition operation on an initial vector and a first round key RK1 of the r round keys with the prime number t as a modulus, and generating a key stream that is an N-dimensional integer vector consisting of elements of the integer set from the first round output vector x1 by using a second to r-th round keys of the r round keys, and one or more first round functions and a second round function.
    Type: Application
    Filed: October 29, 2021
    Publication date: November 17, 2022
    Inventors: Joo Hee Lee, Duk Jae Moon, Hyo Jin Yoon, Ji Hoon Cho, Seong Kwang Kim, Joo Young Lee, Jin Cheol Ha
  • Publication number: 20220367856
    Abstract: Disclosed is a cathode active material for a lithium secondary battery including a core containing lithium composite metal oxide and a coating layer disposed on the core and having an amorphous phase, wherein the amorphous phase contains lithium oxide and tungsten oxide in a form of mixture.
    Type: Application
    Filed: June 15, 2020
    Publication date: November 17, 2022
    Inventors: Joo Hyeong WOO, Sung Kyun CHANG, Sang Hoon JEON, Chang Min CHOI, Sung Woo CHO, Ji Sun AN
  • Publication number: 20220348135
    Abstract: The present disclosure provides an auxiliary handle device configured to be used in entering or exiting a vehicle. The auxiliary handle device includes a cover unit including first and second movement guides, which define a movement path, a guide frame unit, which is connected to the cover unit so as to be slidably moved along a rail of a mounting plate mounted on a roof of the vehicle, and a handle unit, which is mounted on the cover unit so as to be selectively projected downwards from the mounting plate, the handle unit including a first guide pin and a second guide pin, which are respectively mounted in the first movement guide and the second movement guide such that the first and second guide pins are moved while being rotated so as to project the handle unit downwards from the mounting plate.
    Type: Application
    Filed: October 26, 2021
    Publication date: November 3, 2022
    Inventors: Min Ho Cho, Ji Ah Kim, Jin Ho Hwang, Ha Ryung Park, Jae Hoon Jung
  • Publication number: 20220344642
    Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle containing nickel, and a coating material formed on at least a portion of a surface of the lithium metal oxide particle. The coating material includes a metalloid element or a metal element. A surface coating level of the cathode active material is 0.3 or more.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 27, 2022
    Inventors: Sang Wook LEE, Young Hoon DO, Young Uk PARK, Yong Hyun CHO, Seung Ok LEE, Ji Sun LEE
  • Patent number: 11479294
    Abstract: A steering system of a vehicle is provided. The steering system adjusts the torsional rigidity of a torsion bar without limitation as to the configuration thereof and performs active control responding to the vehicle state by adjusting steering characteristics by controlling the torsional rigidity of the torsion bar based on the traveling condition, load state or driving mode of the vehicle. The steering system includes an MR assist device, which is coupled to an end portion of the torsion bar and adjusts the rotation and torsional rigidity of the torsion bar using an MR fluid as a working fluid.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: October 25, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Ji Hoon Lee, Jin Gyo Suh, Sung Han Cho, Seo An Lee
  • Patent number: 11467038
    Abstract: The present invention relates to the time-temperature indicating module which allows the user to trigger the bursting of the starting member with a simple motion and generate a crack so that the spread material interposed inside spreads via the crack. The present invention also relates to the manufacturing method of the time-temperature indicating module that strengthens a sealed section of the time-temperature indicating module using laminating by heat sealing to prevent the spread material from leaking or flowing out.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 11, 2022
    Assignee: TTI CO., LTD.
    Inventors: Bong-Soo Kwon, Ji-Hoon Park, Young-Suk Jeon, Guan-O Lee, Byeong-Han Lim, Jin-Hee Jung, Cheong-Hoon Cho
  • Patent number: 11466814
    Abstract: A solid hydrogen storage device provides an improved heat-transfer efficiency by improving the contact properties between heat-exchange tubes and heat-transfer fins. The solid hydrogen storage device includes a heat-transfer fin including a plurality of tube through holes, a heating tube, and a cooling tube. The heating tube and the cooling tube respectively extend through the tube through holes, and the heating tube and the cooling tube have different coefficients of thermal expansion.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: October 11, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Ji Hye Park, Kyung Moon Lee, Dong Hoon Nam, Young Jin Cho, Seung Hyeon Choi, Yun Su Lee, Hoon Mo Park
  • Publication number: 20220320427
    Abstract: A method for manufacturing an electronic device including a semiconductor memory may include forming a first carbon electrode material, surface-treating the first carbon electrode material to decrease a surface roughness of the first carbon electrode material, and forming a second carbon electrode material on the treated surface of the first carbon electrode material. The second carbon electrode material may have a thickness that is greater than a thickness of the first carbon electrode material.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 6, 2022
    Inventors: Myoung Sub KIM, Tae Hoon KIM, Beom Seok LEE, Seung Yun LEE, Hwan Jun ZANG, Byung Jick CHO, Ji Sun HAN