Patents by Inventor Young Tak

Young Tak 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: 20240136187
    Abstract: One embodiment of the present invention provides a method of manufacturing an electronic device using a cyclic doping process including i) an operation of forming a unit transfer thin film including a two-dimensional material on a transfer substrate, ii) an operation of doping the unit transfer thin film in a low-damage doping process, iii) an operation of transferring the unit transfer thin film doped according to the operation ii) on a transfer target substrate, and iv) an operation of repeatedly performing the operations i) to iii) several times to reach a target thickness.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 25, 2024
    Applicant: Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Geun Young YEOM, Ki Hyun KIM, Ji Eun KANG, Seong Jae YU, You Jin JI, Doo San KIM, Hyun Woo TAK, Yun Jong JANG, Hee Ju KIM, Ki Seok KIM
  • Publication number: 20240000323
    Abstract: The present disclosure relates to a real-time blood pressure monitoring system based on photoplethysmography (PPG) using convolutional?bidirectional long short-term memory (LSTM) recurrent neural networks and a real-time blood pressure monitoring method using the same. According to the present disclosure, there is provided the real-time blood pressure monitoring system based on PPG using convolutional?bidirectional LSTM recurrent neural networks, including a pulse wave measurement module configured to measure the PPG, and a blood pressure estimation server configured to receive the measured PPG from the pulse wave measurement module and estimate a blood pressure via the recurrent neural networks.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 4, 2024
    Applicant: Korea University Research and Business Foundation
    Inventors: Dong-Joo KIM, Dong-Kyu KIM, Young Tak KIM, Se Ho LEE
  • Publication number: 20230282352
    Abstract: The present invention relates to a technical idea of monitoring a heart condition by analyzing biosignals measured using a sensor device for detecting a heart condition. In a method of monitoring a heart condition according to one embodiment of the present invention, electrocardiogram signals are measured from a user, feature information is extracted by performing machine learning of the time domain of the measured electrocardiogram signals, a plurality of cardiac abnormality type models are determined by performing machine learning of the extracted feature information, classification accuracy for the determined cardiac abnormality type models is calculated, and a cardiovascular disease of the user is determined using the determined cardiac abnormality type models and public cardiovascular disease data based on the calculated accuracy. That is, the present invention relates to a technique for assisting medical diagnosis.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 7, 2023
    Applicant: Korea University Research and Business Foundation
    Inventors: Dong Joo KIM, Young Tak KIM, Hyun Ji KIM
  • Publication number: 20230268049
    Abstract: Provided is a pharmacy platform system for providing an online and offline based electroceutical service and a method thereof. The method for providing an electroceutical service using a system for providing an online and offline based electroceutical service includes receiving, by an electroceutical pharmacy server, an input electroceutical prescription from a user terminal possessed by a user who accesses an electroceutical pharmacy site or visits the electroceutical pharmacy; checking a stock status of an electroceutical included in the prescription; transmitting a possible supply date of the electroceutical to the user terminal according to the identified stock status, and requesting a pickup information input; and providing the corresponding electroceutical according to input pickup information when a purchase cost of the corresponding electroceutical is paid and the pickup information including a pickup date and a pickup method is input from the user terminal.
    Type: Application
    Filed: February 6, 2023
    Publication date: August 24, 2023
    Inventors: Dong-Joo KIM, Young-Tak KIM
  • Patent number: 11693455
    Abstract: Proposed is a foldable hinge module for a portable terminal, and more particularly, a foldable hinge module for a portable terminal that can easily unfold or fold a flexible display mounted on the portable terminal. In the foldable hinge module for a portable terminal, the flexible display can be smoothly unfolded or folded as the first rotary plate and the second rotary plate are easily rotated in the Y axis direction, by using the gear set part engaged with the first gear part formed in the first rotary plate and the second gear part formed in the second rotary plate to be operated.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: July 4, 2023
    Assignee: PARTSTEC Construction Co., Ltd
    Inventors: Young Tak Lee, Kil Seok Jeong
  • Publication number: 20230200730
    Abstract: A telemedicine system according to one embodiment includes a gateway for transmitting monitoring information including a stimulation signal and a biosignal corresponding to the stimulation signal to a cloud; and a server for extracting the stimulation signal and the biosignal from the transmitted monitoring information, providing the extracted stimulation signal and biosignal as inputs of a pre-stored artificial intelligence machine learning algorithm-based stimulation control model, regenerating the biosignal as an output of the stimulation control model into a stimulation signal to be regulated for the balance between sympathetic and parasympathetic nerves, and feeding back the regenerated stimulation signal to a personalized vagus nerve stimulation and pulse electromagnetic field treatment device, wherein the monitoring information includes a biosignal measured when vagus nerves are stimulated in the form of electromagnetism at a stimulation site based on a stimulation signal generated from the personalize
    Type: Application
    Filed: June 11, 2021
    Publication date: June 29, 2023
    Applicant: Korea University Research and Business Foundation
    Inventors: Dong Joo KIM, Young Tak KIM, Hyun Ji KIM
  • Publication number: 20230073881
    Abstract: Disclosed are a Mach-Zehnder interferometric optical modulator and a method for manufacturing the same. The modulator includes first and second lower clad layers, a core layer, an upper clad layer, a waveguide, and electrodes. The waveguide may include an input waveguide, a waveguide divider, branch waveguides, and a waveguide combiner. Each of the branch waveguides includes first and second connection regions connected to the waveguide combiner and the waveguide divider, respectively, and a phase shift region having a cross-section of a reverse mesa structure that has an upper width that is the same as widths of the first and second connection regions and a lower width that is smaller than the widths of the first and second connection regions.
    Type: Application
    Filed: June 28, 2022
    Publication date: March 9, 2023
    Inventors: Hyun Soo KIM, Duk Jun Kim, Dong-Young Kim, Ho Sung Kim, Youngsoon Baek, Jang Uk Shin, Young-Tak Han, Won Seok Han
  • Publication number: 20230057424
    Abstract: Provided is a 3D capacitor stack and a method for manufacturing the same. The 3D capacitor stack comprises: a drain line electrode having a pillar shape provided in a vertical direction on a substrate surface; a plurality of first insulating layers positioned in first region of an outer circumferential surface of the drain line electrode; a plurality of drains positioned in second regions of an outer circumferential surface of the drain line electrode; a plurality of insulator stacks positioned on side surfaces of the drains; and a plurality of word lines positioned on side surfaces of the insulator stacks.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 23, 2023
    Inventors: Jong-Ho LEE, Young-tak SEO, Soochang LEE, Seongbin OH, Jangsaeng KIM
  • Publication number: 20230058502
    Abstract: Provided is a 3D stackable synapse string, a 3D stackable synapse array using the same, and a method for manufacturing the 3D stackable synapse string.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 23, 2023
    Inventors: Jong-Ho LEE, Young-tak SEO, Soochang LEE, Seongbin OH, Jangsaeng KIM
  • Publication number: 20230059685
    Abstract: Provided is a 3D synapse device stack, a 3D stackable synapse array using the same, and a method for manufacturing the 3D synapse device stack.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 23, 2023
    Inventors: Jong-Ho LEE, Young-tak SEO, Soochang LEE, Seongbin OH, Jangsaeng KIM
  • Publication number: 20230053693
    Abstract: Provided is a 3D synapse device stack, a 3D stackable synapse array using the same, and a method for manufacturing the 3D synapse device stack.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 23, 2023
    Inventors: Jong-Ho LEE, Young-tak SEO, Soochang LEE, Seongbin OH, Jangsaeng KIM
  • Publication number: 20230054459
    Abstract: Disclosed is a neurofeedback device, including a body attached to a user's body and configured to provide electrical stimulation to a vagus nerve region, wherein the body includes: a frame provided in a symmetrical and elliptical shape, wherein one side and another side in a longitudinal direction are concavely recessed toward a center, and attached to a user's neck; a vagus nerve stimulator located on a back surface of the frame, provided to include a plurality of electrodes for providing electrical stimulation to the vagus nerve region, and attached to skin directly above the vagus nerve region located next to carotid artery of the user; a heart rate sensor located at a center of left and right symmetry of the frame on a back surface of the frame and configured to detect heart rates of the user; a manipulator located in front of the frame and configured to receive a user's command; and a plurality of connection ports formed on a side surface of the frame to transmit and receive signals, wherein the plural e
    Type: Application
    Filed: October 14, 2022
    Publication date: February 23, 2023
    Applicant: NeuroTx Co., Ltd
    Inventors: Dong-Joo KIM, Young-Tak Kim, Hyun-Ji Kim
  • Patent number: 11582652
    Abstract: A handover method for managing WBSS vehicle network managed by a WESS-CM includes: recognizing that a vehicle enters an overlapped area between first and second WBSSs; sending, by the first WBSS, a handover recommend request to the WESS-CM; confirming with the second WBSS, by the WESS-CM, whether handover is possible; responding to the WESS-CM, by the second WBSS, the availability of the handover after allocating communication resources; sending, by the WESS-CM, a handover recommend response to the first WBSS; transmitting, by the first WBSS, a handover request message to the vehicle; performing the handover, by the vehicle, by performing reassociation with the second WBSS; and periodically broadcasting, by the vehicle, basic safety message using a T-slot in shared control channel and a T-slot in BSM channel for the second WBSS, while the vehicle is located in the overlapped area.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: February 14, 2023
    Assignee: Industry Academic Cooperation Foundation Of Yeungnam University
    Inventors: Young Tak Kim, Hyun Dong Hwang
  • Patent number: 11564089
    Abstract: An apparatus for Internet of Things (IoT) registration includes a beacon frame transmitting unit for transmitting a beacon frame to a plurality of stations, an authentication unit that receives an authentication request frame from the plurality of stations in a first method, and an association unit that transmits an authentication response frame or an association response frame to the plurality of stations in a second method.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: January 24, 2023
    Assignee: Industry Academic Cooperation Foundation Of Yeungnam University
    Inventors: Young-Tak Kim, Nurullah Shahin
  • Patent number: 11425545
    Abstract: The present application relates to a multichannel access control method in an overlapped vehicular network, and more specifically, a multichannel access control method in vehicular networks, for managing a Wireless Access in Vehicular Environments (WAVE) basic service set (WBSS) vehicular network which is managed by a WAVE extended service set control and management system (WESS-CM) and is provided by using a road side unit (RSU) in a plurality of vehicle environments having overlapped areas, comprising: configuring Time Division Multiple Access (TDMA)-slots (T-slots) divided from the synchronization interval with respect to the CCH and a Basic Safety Message channel (BSMCH) for each WBSS that has a control channel (CCH) and the BSMCH in which the synchronization interval are preset, and distributing T-slots divided from the CCH to a plurality of the WBSS; wherein the first T-slot of the group of T-slots of the CCH is used to broadcast a beacon message including TDMA information of the WBSS such as the identi
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: August 23, 2022
    Assignee: Industry Academic Cooperation Foundation of Yeungnam University
    Inventors: Young Tak Kim, Hyun Dong Hwang
  • Publication number: 20220236618
    Abstract: Disclosed are a heterogeneously integrated optical modulator and a manufacturing method thereof. The modulator includes a substrate having a trench, an input waveguide disposed at one side of the trench, an output waveguide disposed at the other side of the trench, a first Mach-Zehnder interferometer including first branch waveguides disposed between the input waveguide and the output waveguide and a heater disposed on one of the first branch waveguides, and second Mach-Zehnder interferometers connected to each of the first branch waveguides.
    Type: Application
    Filed: November 4, 2021
    Publication date: July 28, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Tak HAN, Seoktae KIM, Sang Ho PARK, Yongsoon BAEK, Jang Uk SHIN, Seok Jun YUN, Seo Young LEE
  • Patent number: 11381315
    Abstract: Disclosed is an optical transmitter module including a directly modulated laser transmitter based on a directly modulated laser (DML) and an arrayed waveguide grating (AWG) chip that is vertically polished. The directly modulated laser transmitter includes a directly modulated laser chip array including one or more directly modulated laser chips, an impedance matching circuit that allows each of the one or more directly modulated laser chips to operate at a critical speed of 100 Gbps per channel or higher, and a radio frequency-flexible printed circuit board (RF-FPCB) that transmits a radio frequency (RF) modulating signal to the directly modulated laser chip array. The arrayed waveguide grating chip includes an optical waveguides that transfer multi-channel optical signals and a wavelength multiplexer that multiplexes the multi-channel optical signals. The directly modulated laser transmitter and the arrayed waveguide grating chip are spaced apart from each other and are optically coupled in chip-to-chip.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: July 5, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young-Tak Han, Seok Jun Yun, Seoktae Kim, Sang Ho Park, Yongsoon Baek, Jang Uk Shin, Seo Young Lee
  • Publication number: 20220150775
    Abstract: A handover method manages Wireless Access in Vehicle Environments (WAVE) Basic Service Set (WBSS) vehicle network which is managed by a Wireless Access in Vehicle Environments (WAVE) Extends Service Set Control and Management System (WESS-CM) and provided by using Road Side Unit (RSU) in multiple vehicle environments having overlapped areas. The method includes confirming that a vehicle enters an overlapped area between a first WBSS and a second WBSS; requesting, by the first WBSS, a handover recommend to the WESS-CM; confirming with the second WBSS, by the WESS-CM, whether handover is possible; responding to the WBESS-CM, by the second WBSS, to the availability of the handover after allocating communication resources available for the vehicle; responding, by the WESS-CM, the handover recommend response to the first WBSS; transmitting, by the first WBSS, a handover request message to the vehicle; and performing the handover.
    Type: Application
    Filed: December 29, 2020
    Publication date: May 12, 2022
    Applicant: INDUSTRY ACADEMIC COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
    Inventors: Young Tak Kim, Hyun Dong Hwang
  • Patent number: 11235800
    Abstract: A vehicle terminal and a method for controlling steering thereby are provided. The vehicle terminal includes a steering controller that adjusts a wheel steering, and a processor that determines a steered wheel angle when a vehicle is stopped at a direction switching point, based on road information based on a current position of the vehicle. The processor instructs the steering controller to adjust the wheel steering in advance based on the determined steered wheel angle.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: February 1, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Young Tak Jeon
  • Publication number: 20210386351
    Abstract: The present disclosure relates to a technical idea for minimizing a signal correction process between users using brain activity-based clustering technology. More specifically, the present disclosure relates to technology for minimizing a signal correction process between users by clustering a brain signal of a measurement subject into a specific clustering model and determining an intention of the measurement subject using an intention determination model learned on the specific clustering model.
    Type: Application
    Filed: January 22, 2021
    Publication date: December 16, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Dong Joo KIM, Se Ho LEE, Young Tak KIM