Patents by Inventor Kyung-jin Lee

Kyung-jin Lee 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: 20220255235
    Abstract: A millimeter-wave (mmW) reflective structure configured to reflect incident millimeter waves is provided. The mmW reflective structure includes: a transparent substrate in which unit cells in the form of a matrix are defined, the transparent substrate having an upper surface parallel to first and second directions which are orthogonal to each other; and conductive patterns arranged in the unit cells on the transparent substrate, each of the conductive patterns having a hollow rectangular shape.
    Type: Application
    Filed: July 15, 2020
    Publication date: August 11, 2022
    Inventors: Won-bin Hong, Byounggwan Kang, Hyung Rae Kim, Kyung-jin Lee, Young-no Yoon
  • Publication number: 20220231867
    Abstract: A physically unclonable function magnetic memory device includes a plurality of magnetic resistance cells disposed on a substrate and each including a pinned magnetic layer, a free magnetic layer, and a tunnel insulating layer or a non-magnetic conductive layer interposed between the pinned magnetic layer and the free magnetic layer. In an operating method of the physically unclonable magnetic memory device, an external magnetic field, decaying with time, is applied to the plurality of magnetic resistance cells to randomize a magnetization direction of the free magnetic layer of each of the plurality of magnetic resistance cells.
    Type: Application
    Filed: December 30, 2021
    Publication date: July 21, 2022
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION(
    Inventors: Kyung Jin LEE, Jongsun PARK
  • Publication number: 20220223770
    Abstract: An optical display device having a backplane substrate and a cover plate adjacent to and spaced apart from the backplane substrate is provided. The backplane substrate can include a plurality of electroluminescent elements disposed thereon and the cover plate can include a plurality of light absorbing wedge-shaped features arranged in rows thereon.
    Type: Application
    Filed: May 15, 2020
    Publication date: July 14, 2022
    Inventors: Sang-cheol Jung, Dae youn Kim, Goo Soo Lee, Kyung-jin Lee, Dong Keun Shin, Hong Yoon
  • Publication number: 20220178929
    Abstract: Provided are the use of cereblon (CRBN) as a biomarker for diagnosis of hepatocellular carcinoma and novel monoclonal antibodies specific to CRBN. More specifically, provided are a composition and a kit for diagnosing or predicting the prognosis of hepatocellular carcinoma by using CRBN as a biomarker for diagnosis of hepatocellular carcinoma, an information providing method for diagnosing or predicting the prognosis of hepatocellular carcinoma, two novel monoclonal antibodies binding specifically to CRBN, and hybridoma cells producing the same. The expression level difference of CRBN protein allows patients with hepatocellular carcinoma to be diagnosed early and indicates better predictive capabilities than the presence or absence of microvascular invasion, which was an important factor in predicting a prognosis of hepatocellular carcinoma in prior art, and thus can be expected to be used as a diagnostic marker to diagnose hepatocellular carcinoma and to evaluate a prognosis after hepatic resection.
    Type: Application
    Filed: March 23, 2020
    Publication date: June 9, 2022
    Applicants: UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION, THE ASAN FOUNDATION
    Inventors: Kyung Jin LEE, Sin HWANG
  • Publication number: 20220168821
    Abstract: A clamping module for a machine tool is proposed. The clamping module includes: a body having a mount hole that a pull stud enters; a plunger configured to clamp or unclamp the pull stud by sliding forward or backward radially from a center of the mount hole; a plunger pin protruding from a side of the plunger and configured to freely rotate; and a clamp plunger having a guide groove configured to move the plunger forward and backward by interfering with the plunger pin while moving up and down inside the body, in which the guide groove has a first guide face for moving forward the plunger to a clamping position and a second guide face for moving backward the plunger to an unclamping position; and the first guide face is an arc-shaped curved shape having a uniform radius of curvature.
    Type: Application
    Filed: August 20, 2021
    Publication date: June 2, 2022
    Applicant: SAMCHULLY MACHINERY CO., LTD
    Inventors: Jae Won SEO, Kyung Jin LEE
  • Patent number: 11205534
    Abstract: Disclosed is an ultra low power transimpedance amplifier based on spintronics. According to the present invention, provided is an ultra low power transimpedance amplifier based on spintronics, which includes: a spintronics based oscillator receiving current and outputting an alternating signal by using spin transfer torque or spin orbit torque; a bandpass filter passing a signal in a predetermined frequency band of the alternating signal output by the spintronics based oscillator; and a spintronics based detector outputting voltage by inputting the signal in the predetermined frequency band, which is output by the bandpass filter.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: December 21, 2021
    Assignee: Korea University Research and Business Foundation
    Inventors: Jae-Sung Rieh, Kyung Jin Lee, Do Yoon Kim, Jae Hyeon Park
  • Publication number: 20210267921
    Abstract: The present disclosure relates to a composition for preventing, alleviating, or treating allodynia caused by anticancer agents, containing cinnamic acid or a pharmaceutically acceptable salt thereof as an active ingredient. The composition of the present disclosure can prevent, alleviate, or treat allodynia by being administered to a subject scheduled to receive anticancer agents or having received anticancer agents.
    Type: Application
    Filed: June 7, 2019
    Publication date: September 2, 2021
    Inventors: Sun Kwang Kim, Zee Hwan Lee, Dae Sik Jang, Woojin Kim, Kyung Jin Lee
  • Patent number: 11107513
    Abstract: A magnetic memory according to one embodiment of the present invention comprises: a magnetic tunnel junction comprising a free layer, a reference layer, and a tunnel barrier layer disposed between the free layer and the reference layer; a first conductive line disposed adjacent to the free layer; and a second conductive line disposed adjacent to the free layer and intersecting the first conductive line. A magnetization switching method of the magnetic memory comprises the steps of: applying an alternating current-type first current having a first frequency to the first conductive line; and applying an alternating current-type second current having the first frequency to the second conductive line. The free layer performs magnetization reversal, using the first current and the second current, and the magnetic tunnel junction is disposed on an intersection point between the first conductive line and the second conductive line.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: August 31, 2021
    Assignee: Korea University Research and Business Foundation
    Inventors: Kyung-Jin Lee, Gyungchoon Go, Seung-Jae Lee
  • Patent number: 10916752
    Abstract: Disclosed is a lithium secondary battery provided with a separator, having improved thermal stability by including a micro-particle coating layer manufactured using Furan-based polymers, for example, polymers having polymer unit including furanyl or furoyl. The lithium secondary battery includes a cathode, an anode, an electrolyte, and a separator disposed between the cathode and the anode and including a coating layer including a micro-particle. The micro-particle includes the second polymer which may include cross-linked first polymer.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: February 9, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, The Industry & Academic Cooperation in Chungnam National University (IAC)
    Inventors: KiSeok Koh, Yeolmae Yeo, Seung-Min Oh, Yoon Sung Lee, Kyung Jin Lee, Hyojin Kim
  • Patent number: 10886460
    Abstract: A magnetic device includes: a conductive layer into which current is injected in a first direction, the conductive layer causing spin Hall effect or Rashba effect; a ferromagnetic layer disposed in contact with the conductive layer such that the ferromagnetic layer and the conductive layer are stacked on each other, a magnetization direction of the ferromagnetic layer being switched; and a spin filter structure having a fixed magnetization direction, the spin filter structure being disposed on at least one of the opposite side surfaces of the first direction of the conductive layer to inject spin-polarized current into the conductive layer.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: January 5, 2021
    Assignee: Korea University Research and Business Foundation
    Inventors: Young Keun Kim, Kyung-Jin Lee, Gyungchoon Go
  • Publication number: 20200407272
    Abstract: A method of fabricating a metal thin film-on-glass structure. A glass substrate, on a top surface of which a layer is formed, is prepared. A local area of the glass substrate is etched from a bottom of the glass substrate to expose the layer downwardly, thereby forming an exposed area of the layer. The layer is a metal thin film. The etching includes first-etching the glass substrate to a depth less than a thickness of the glass substrate using a first etching solution containing hydrofluoric acid and at least one of nitric acid and sulfuric acid, resulting in a first-etched portion of the glass substrate; and second-etching the first-etched portion of the glass substrate using an etching solution containing hydrofluoric acid without nitric acid or sulfuric acid, so that the layer is exposed downwardly, whereby the metal thin film is supported by a remaining portion of the glass substrate.
    Type: Application
    Filed: March 9, 2018
    Publication date: December 31, 2020
    Inventors: Seo-Yeong Cho, Kyung-jin Lee, Yoon-seuk Oh, Jun Ro Yoon
  • Patent number: 10879452
    Abstract: A magnetic tunnel junction device and magnetic memory device. The magnetic tunnel junction device includes a magnetic tunnel junction including a fixed magnetic body, an insulator, and a free magnetic body sequentially stacked and a conducting wire disposed adjacent the free magnetic body of the magnetic tunnel junction to apply in-plane current. The fixed magnetic body has a fixed magnetization direction and is a thin film including a material magnetized directionally perpendicular to a film surface. The main free magnetic layer and the auxiliary free magnetic layer change in magnetization direction and is a thin film including a material magnetized directionally perpendicular to a film surface, and the main free magnetic layer is disposed adjacent to a conducting wire generating spin current by the in-plane current. Among magnetic layers constituting the free magnetic body, two magnetic layers closest to each other have opposite magnetization directions by an RKKY exchange interaction.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: December 29, 2020
    Assignee: Korea University Research and Business Foundation
    Inventor: Kyung-Jin Lee
  • Publication number: 20200388424
    Abstract: Disclosed is an ultra low power transimpedance amplifier based on spintronics. According to the present invention, provided is an ultra low power transimpedance amplifier based on spintronics, which includes: a spintronics based oscillator receiving current and outputting an alternating signal by using spin transfer torque or spin orbit torque; a bandpass filter passing a signal in a predetermined frequency band of the alternating signal output by the spintronics based oscillator; and a spintronics based detector outputting voltage by inputting the signal in the predetermined frequency band, which is output by the bandpass filter.
    Type: Application
    Filed: June 3, 2020
    Publication date: December 10, 2020
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Jae-Sung RIEH, Kyung Jin LEE, Do Yoon KIM, Jae Hyeon PARK
  • Publication number: 20200357556
    Abstract: A magnetic nano oscillating device, according to an embodiment of the present invention, comprises: a ferromagnetic layer disposed on a substrate; a non-magnetic conductive layer laminated on the ferromagnetic layer; an antiferromagnetic layer (or a ferrimagnetic layer) laminated on the non-magnetic conductive layer; and first and second electrodes respectively contacting both side surfaces of the ferromagnetic layer and the non-magnetic conductive layer.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyung-Jin LEE, Byong Guk PARK, Dong-Kyu LEE
  • Patent number: 10818950
    Abstract: A composite polymer electrolyte membrane for a fuel cell may be manufactured by the following method: partially or totally filling the inside of a pore of a porous support with a hydrogen ion conductive polymer electrolyte solution by performing a solution impregnation process; and drying the hydrogen ion conductive polymer electrolyte solution while completely filling the inside of the pore with the hydrogen ion conductive polymer electrolyte solution by performing a spin dry process on the porous support of which the inside of the pore is partially or totally filled with the hydrogen ion conductive polymer electrolyte solution.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: October 27, 2020
    Assignees: GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMS, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jin Young Kim, Kyung-jin Lee, Kyungah Lee, Nayoung Kim, So Young Lee, Sung Jong Yoo, Jong Hyun Jang, Hyoung-Juhn Kim, Jonghee Han, Suk Woo Nam, Tae Hoon Lim
  • Patent number: 10800737
    Abstract: The present invention relates to a cost-effective and efficient method for preparing treprostinil with high purity, and an intermediate therefor.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: October 13, 2020
    Assignee: YONSUNG FINE CHEMICAL CO., LTD.
    Inventors: Hyun Ik Shin, Hyoseon Lee, Kyung Jin Lee, Kee Young Lee, Changyoung Oh
  • Patent number: 10794078
    Abstract: A damper for reinforcing earthquake resistance according to the present invention includes a first supporting part mounted in a building structure, a second supporting part mounted on a support structure movably disposed to be separated from the building structure, and disposed to face the first supporting part, and a damper part connecting the first supporting part with the second supporting part and absorbing energy generated by an earthquake.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 6, 2020
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Kyung Jin Lee, Sang Hoon Oh, Kwang Yong Choi, Kyung Won Hahm
  • Publication number: 20200286537
    Abstract: A magnetic memory according to one embodiment of the present invention comprises: a magnetic tunnel junction comprising a free layer, a reference layer, and a tunnel barrier layer disposed between the free layer and the reference layer; a first conductive line disposed adjacent to the free layer; and a second conductive line disposed adjacent to the free layer and intersecting the first conductive line. A magnetization switching method of the magnetic memory comprises the steps of: applying an alternating current-type first current having a first frequency to the first conductive line; and applying an alternating current-type second current having the first frequency to the second conductive line. The free layer performs magnetization reversal, using the first current and the second current, and the magnetic tunnel junction is disposed on an intersection point between the first conductive line and the second conductive line.
    Type: Application
    Filed: May 20, 2020
    Publication date: September 10, 2020
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kyung-Jin LEE, Gyungchoon GO, Seung-Jae LEE
  • Publication number: 20200263484
    Abstract: A vacuum insulated glass unit (IGU) including an interconnected polymer spacer matrix and methods of making the same. The vacuum IGU includes a first glass-based layer, a second glass-based layer, an interconnected polymer spacer matrix, and an edge seal between the periphery of the first and second glass-based layers.
    Type: Application
    Filed: November 2, 2017
    Publication date: August 20, 2020
    Inventors: Seo-Yeong Cho, Ki-yeon Lee, Kyung-jin Lee, Yoon-seuk Oh, Choon-bong Yang
  • Publication number: 20200259075
    Abstract: A magnetic tunnel junction device and magnetic memory device. The magnetic tunnel junction device includes a magnetic tunnel junction including a fixed magnetic body, an insulator, and a free magnetic body sequentially stacked and a conducting wire disposed adjacent the free magnetic body of the magnetic tunnel junction to apply in-plane current. The fixed magnetic body has a fixed magnetization direction and is a thin film including a material magnetized directionally perpendicular to a film surface. The free magnetic body has a structure of N/main free magnetic layer, where N is a positive integer greater than or equal to 2 and indicates that a structure is stacked repeatedly N times. The main free magnetic layer and the auxiliary free magnetic layer change in magnetization direction and is a thin film including a material magnetized directionally perpendicular to a film surface, and the main free magnetic layer is disposed adjacent to a conducting wire generating spin current by the in-plane current.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventor: Kyung-Jin Lee