Patents by Inventor Kyu Choi

Kyu Choi 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: 20240047600
    Abstract: A transistor for implementing a photo-responsive neuronal device is disclosed. According to one example embodiment, the transistor includes a semiconductor substrate including a hole barrier region or an electron barrier region; a floating body extended in a horizontal direction on the hole barrier region or the electron barrier region; a source region and a drain region formed at both ends of the floating body; a gate insulating film formed on the floating body; and a gate region formed on the gate insulating film.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 8, 2024
    Inventors: Yang-Kyu CHOI, Joon-Kyu HAN
  • Patent number: 11893497
    Abstract: A processor-implemented method of generating feature data includes: receiving an input image; generating, based on a pixel value of the input image, at least one low-bit image having a number of bits per pixel lower than a number of bits per pixel of the input image; and generating, using at least one neural network, feature data corresponding to the input image from the at least one low-bit image.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: February 6, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Kyu Choi, Youngjun Kwak, Seohyung Lee
  • Patent number: 11883760
    Abstract: A foldable toy includes: a body part; a support part movably connected to the body part; at least one movable body part movably connected to at least one of the body part or the support part; and a locking part to fix the moveable body part in a first position to lock the foldable toy in a first shape in which the body part, the support part, and the movable body part are deployed. When the locking part is unlocked, the movable body part moves to a second position, and the foldable toy is folded into a second shape in which the body part, the support part, and the movable body part are stacked on one another.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: January 30, 2024
    Inventor: Shin-Kyu Choi
  • Patent number: 11883634
    Abstract: An electrohydraulic microjet drug delivery device includes: a discharge body provided with a power supply unit in which electric energy is stored; and a medicinal fluid delivery body detachably attached to the discharge body, the medicinal fluid delivery body including a pressure generation unit configured to store a pressure generation liquid, a medicinal fluid storage unit configured to store a medicinal fluid, an elastic separation membrane installed between the pressure generation unit and the medicinal fluid storage unit and configured to separate the pressure generation liquid and the medicinal fluid, a discharger installed inside the pressure generation unit so as to be submerged in the pressure generation liquid and configured to generate a spark using the electric energy stored in the power supply unit, and a nozzle kept in communication with the medicinal fluid storage unit.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: January 30, 2024
    Assignee: MEDIJET CO., LTD.
    Inventors: Seok Soon Lee, Jin Kyu Choi, Han Bin Kang, Seung Min Tak, In Seok Baek
  • Publication number: 20240030191
    Abstract: A stack package includes a core die disposed over a package substrate, and a controller die disposed between the core die and the package substrate to control the core die. The core die includes banks each including memory cell arrays, an interbank region in which row decoders and column decoders are arranged, and a pad region in which first connection pads electrically connected to the row decoders and column decoders through first wirings are disposed. The controller die includes a through via region in which controller die through vias penetrating the controller die to be connected to the first connection pads are disposed, and a circuit region in which controlling circuitry electrically connected to the controller die through vias through second wirings is disposed.
    Type: Application
    Filed: October 2, 2023
    Publication date: January 25, 2024
    Applicant: SK hynix Inc.
    Inventor: Bok Kyu CHOI
  • Patent number: 11878984
    Abstract: The present invention relates to new compounds derived from marine actinomycetes Streptomyces, and the new compound according to the present invention has an inhibitory effect of NO production on BV-2 microglia stimulated with LPS, and thus can be utilized for the prevention and treatment of neuroinflammatory diseases.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: January 23, 2024
    Assignee: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY
    Inventors: Hee Jae Shin, Byeoung Kyu Choi, Hwa Sun Lee, Hyi Seung Lee, Yeon Ju Lee, Jong Seok Lee, Ji Hoon Lee
  • Patent number: 11880794
    Abstract: The present disclosure relates to a smart-tag based work processing device and a work processing method, wherein the work processing device comprises a work object processing unit creating a work object that implements a work processing flow through a plurality of heterogeneous work units having a dependency relationship; a work processing flow controller creating a work unit of a first type through the work object and sequentially generating a work unit of a second type through the work unit of the first type; and a smart-tag processing unit identifying attribute information of the work unit of the second type when the corresponding work unit is created, automatically generating a smart-tag based on the attribute information, and combining the smart-tag into the work unit of the first type.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 23, 2024
    Assignees: Delta PDS CO., LTD.
    Inventors: Jae Ho Choi, Hyun Kyu Choi, Seo Hyun Choi
  • Publication number: 20240014163
    Abstract: A semiconductor package includes a redistribution substrate having a first side and an opposite second side, a semiconductor chip on the first side of the redistribution substrate, a silicon capacitor on the second side of the redistribution substrate, a plurality of solder balls on the second side of the redistribution substrate and adjacent the silicon capacitor, and a metal pattern in the redistribution substrate and positioned between the silicon capacitor and the solder balls. The metal pattern includes a first portion extending in a first direction, and a second portion connected to the first portion and extending in a second direction different from the first direction.
    Type: Application
    Filed: May 4, 2023
    Publication date: January 11, 2024
    Inventors: Jong Youn KIM, Eung Kyu KIM, Min Jun BAE, Hyeon Seok LEE, Seok Kyu CHOI
  • Publication number: 20240014430
    Abstract: Disclosed is a cartridge assembly. The cartridge assembly includes a body part having an upper body opened upwards and downwards, and a lower body opened upwards and downwards, and coupled to the upper body to define an interior space, in which cells are stacked upwards and downwards, together with the upper body, and a cartridge including a cover part having an upper cover that covers an upper opening formed on an upper side of the upper body, and a lower cover that covers a lower opening formed on a lower side of the lower body, a plurality of cartridges are provided, and are stacked in an upward/downward direction, and each of the cartridges includes a connection part fixedly coupled to another cartridge disposed on an upper side or a lower side thereof to be adjacent thereto.
    Type: Application
    Filed: October 21, 2022
    Publication date: January 11, 2024
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventors: Chan Gi KIM, Hyun Kyu CHOI, Bae Jung KIM, Hyun Jeong KIM, Sun Hwi KIM
  • Patent number: 11866035
    Abstract: A personalized safe driving assistance method and system includes personalized safe driving information by determining a dangerous situation differently according to personal preference. A method includes the operations of collecting, for each of a plurality of collection target vehicles, information on a first risk determination factor to an N-th risk determination factor corresponding to the collection target vehicle during a predetermined measurement period, by a personalized safe driving assistance system (here, N is an integer greater than or equal to 3), modeling a standard safety area in an N-dimensional space expressed in an N-axis coordinate system orthogonal to each other on the basis of the information collected from the plurality of collection target vehicles during the measurement period, wherein each coordinate axis of the N-dimensional space corresponds to any one among the first risk determination factor to the N-th risk determination factor, by the personalized safe driving assistance system.
    Type: Grant
    Filed: September 7, 2020
    Date of Patent: January 9, 2024
    Assignee: INFOCAR CO., LTD
    Inventors: Geo Seok Choi, Moon Kyu Choi, Geon Ho Pyo, Guk Bin Lim
  • Patent number: 11869950
    Abstract: A steep-slope field-effect transistor and a fabrication method thereof are disclosed. The steep-slope field-effect transistor according to an embodiment of the inventive concept includes a source, a channel region, and a drain formed on a substrate; a gate insulating film formed on an upper portion of the channel region; a floating gate formed on an upper portion of the gate insulating film; a transition layer formed on an upper portion of the floating gate; and a control gate formed on an upper portion of the transition layer. The steep-slope field-effect transistor applies a reference potential or more to the control gate to discharge or bring in at least one charge stored in the floating gate.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: January 9, 2024
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yang-Kyu Choi, Myung-Su Kim
  • Publication number: 20240003496
    Abstract: Disclosed is a method of discharging lubricant oil from a BOG reliquefaction system configured to reliquefy BOG by compressing the BOG by a compressor, cooling the compressed BOG through heat exchange with non-compressed BOG by a heat exchanger, and reducing a pressure of fluid cooled through heat exchange by a pressure reducer. In the lubricant oil discharge method, the compressor comprises at least one oil-lubrication type cylinder and it is determined that it is time to discharge condensed or solidified lubricant oil, if at least one of preset conditions is satisfied.
    Type: Application
    Filed: September 14, 2023
    Publication date: January 4, 2024
    Inventors: Joon Chae LEE, Dong Kyu CHOI, Won Jae CHOI, Sung Kak LYU, Jae Hyeoung JANG
  • Publication number: 20230419089
    Abstract: A synaptic device, a neuromorphic device including the synaptic device, and operating methods thereof are disclosed. A synaptic device may comprise a channel, a charge trap layer directly contacting the channel, a blocking insulating layer disposed on the charge trap layer, a control electrode disposed on the blocking insulating layer, a first terminal connected to a first region of the channel, and a second terminal connected to a second region of the channel. The synaptic device may change a post-synaptic current (PSC) and control synaptic plasticity according to a control signal applied to the control electrode. The synaptic device may have a SONS (doped poly-silicon/blocking oxide/charge trap nitride/silicon channel) structure. The synaptic device may have SADP characteristics, SDDP characteristics, SFDP characteristics, SNDP characteristics, and STDP characteristics.
    Type: Application
    Filed: April 18, 2023
    Publication date: December 28, 2023
    Inventors: Yang Kyu CHOI, Ji Man Yu
  • Patent number: 11837320
    Abstract: A semiconductor chip capable of improving signal quality includes a host device, a first memory device which is spaced part from the host device and connected to the host device, a repeater module which is connected to the host device and the first memory device, and a second memory device which is spaced apart from the host device and connected to the repeater module. The first memory device receives a data signal from the host device and generates a recovery clock signal, using the data signal. The repeater module receives the recovery clock signal from the first memory device, receives a first input signal from the host device, and samples the first input signal on the basis of the recovery clock signal to generate a sampling signal. The second memory device receives the sampling signal.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: December 5, 2023
    Inventors: Young San Kang, Dong Hee Kim, Jong Kyu Choi, Sung Oh Huh
  • Patent number: 11835230
    Abstract: Provided is a cyclonic plasma melting furnace. A melting furnace chamber body includes an inlet through which waste is input and an outlet through which air or gas is discharged. The outlet is provided in a direction opposite to the inlet. At least one plasma torch is provided on the melting furnace chamber body so as to be inclined at a predetermined angle with respect to a direction in which the air or the gas is discharged through the outlet.
    Type: Grant
    Filed: December 5, 2020
    Date of Patent: December 5, 2023
    Assignee: KOREA INSTITUTE OF FUSION ENERGY
    Inventors: Yong Sup Choi, Dae Hyun Choi, In Je Kang, Ji Hun Kim, Sung Hoon Jee, Dong Hun Shin, Seong Bong Kim, Soon Mo Hwang, Chi Kyu Choi
  • Publication number: 20230386995
    Abstract: Provided is a storage system including a decoupling device having a plurality of unit capacitors. The storage system includes a storage device, a control device, and a decoupling device disposed on a circuit substrate. The storage device is configured to receive and store data from the control device. The control device is configured to generate an inner voltage. The decoupling device is connected to the control device and decouples the inner voltage. The decoupling device includes a plurality of unit capacitors constituting a plurality of decoupling capacitors. Each of the unit capacitors includes a plurality of capacitor elements, a first terminal, and a second terminal. Some of the unit capacitors are selectively connected with each other to constitute the decoupling capacitors having various capacitances.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Applicant: SK hynix Inc.
    Inventor: Bok Kyu CHOI
  • Publication number: 20230381052
    Abstract: A walking assistance system may be controlled by a method for controlling the same. The walking assistance system comprises an mobility device movable by a first driving part, a walking assistance robot, comprising one or more joint parts, and movable by a second driving part, and a controller that is configured to drive one or more of the first driving part or the second driving part so as to control the mobility device and the walking assistance robot to move in coordination with each other. The electric mobility device and the walking assistance robot may be moved to adjust a relative horizontal location between the mobility device and the walking assistance robot and to adjust a relative vertical location between the mobility device and the walking assistance robot, and controlling a total distance between the mobility device and the walking assistance robot to a reference distance.
    Type: Application
    Filed: November 14, 2022
    Publication date: November 30, 2023
    Inventors: Ji Min Han, Jong Kyu Choi
  • Patent number: 11830997
    Abstract: A secondary battery may include a cell body member accommodating an electrode assembly therein; and a heat conductive member disposed between the cell body member and a cooling plate member to form a heat path for transferring heat from the cell body member, wherein the heat conductive member is in contact with the cooling plate member, and wherein a contact area of the cooling plate member and the heat conductive member is smaller than a cross-sectional area of the cell body member parallel to a thickness direction of the electrode assembly.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: November 28, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Dong Ha Hwang, Seok Min Kim, Myeong Hwan Ma, Seo Roh Rhee, Hae Ryong Jeon, Seung Hoon Ju, Yang Kyu Choi
  • Publication number: 20230346629
    Abstract: An embodiment system includes a walking assistance device configured to be worn by a user to assist walking of the user, an electric mobility device configured to be movable while being combined with the walking assistance device, and a server configured to receive movement information from the walking assistance device and the electric mobility device and to generate a control command for instructing the walking assistance device or the electric mobility device to move to a destination based on the movement information.
    Type: Application
    Filed: November 17, 2022
    Publication date: November 2, 2023
    Inventors: Ji Min Han, Jong Kyu Choi
  • Publication number: 20230352104
    Abstract: A nonvolatile memory device and an operating method thereof are disclosed. An operating method of a nonvolatile memory device may comprise providing the nonvolatile memory device including a memory transistor, the memory transistor including a source, a drain, a channel disposed between the source and the drain, and a first insulating layer, a charge storage layer, a second insulating layer, and a gate which are sequentially disposed on the channel, and curing the memory transistor by removing charges or traps existing at least at an interface between the channel and the first insulating layer by generating a gate induced drain leakage (GIDL) current on the drain side of the memory transistor and using Joule heating caused by the GIDL current.
    Type: Application
    Filed: March 28, 2023
    Publication date: November 2, 2023
    Inventors: Jung Woo LEE, Yang Kyu CHOI, Ji Man YU