Patents by Inventor Tae-kyoung Lee

Tae-kyoung 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: 20230282399
    Abstract: Proposed are a method of manufacturing an anisotropic rare-earth bulk magnet, the method being capable of suppressing formation of ReFe2 phase, and an anisotropic rare-earth bulk magnet having excellent magnetic properties.
    Type: Application
    Filed: November 9, 2021
    Publication date: September 7, 2023
    Inventors: Jung Goo LEE, Hee Ryoung CHA, Ga Yeong KIM, Tae Hoon KIM, Young Kuk KIM, Youn Kyoung BAEK
  • Publication number: 20230238526
    Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a plurality of a lithium-transition metal composite oxide particle having a shape of a secondary particle in which a plurality of primary particles are aggregated. The lithium-transition metal composite oxide particle includes a lithium-molybdenum-containing portion having a hexagonal close-packed structure formed between the primary particles.
    Type: Application
    Filed: January 19, 2023
    Publication date: July 27, 2023
    Inventors: Sang Min PARK, Hee Jun KWEON, Myoung Lae KIM, Sang Bok KIM, Jung Moon SUNG, Keum Jung YOON, Tae Kyoung LEE, Ji Hoon CHOI
  • Publication number: 20230238527
    Abstract: A cathode active material for a lithium secondary battery according to an embodiment of the present invention includes a lithium metal oxide particle that contains tungsten and has a secondary shape in which a plurality of primary particles are aggregated. The lithium metal oxide particle includes a sulfur-containing portion formed between the primary particles in an inner region of the lithium metal oxide particle.
    Type: Application
    Filed: January 20, 2023
    Publication date: July 27, 2023
    Inventors: Hee Jun Kweon, Sang Bok Kim, Sang Min Park, Sang Hye Shin, Tae Kyoung Lee, Ji Hoon Choi
  • Publication number: 20230207778
    Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
    Type: Application
    Filed: January 4, 2023
    Publication date: June 29, 2023
    Inventors: Sang Min Park, Tae Kyoung Lee, Sang Bok Kim, Jik Soo Kim, Sang Hye Shin, Yu Na Shim, Jeong Bae Yoon
  • Publication number: 20230197934
    Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
    Type: Application
    Filed: February 24, 2023
    Publication date: June 22, 2023
    Inventors: Sang Bok KIM, Sang Hye SHIN, Sang Min PARK, Tae Kyoung LEE, Myoung Lae KIM, Jeong Bae YOON, Jik Soo KIM, Ji Hoon CHOI
  • Publication number: 20230187618
    Abstract: A cathode active material for a lithium secondary battery according to exemplary embodiments may include lithium metal oxide particles; and a coating layer which is formed on surfaces of the lithium metal oxide particles and contains a first metal and a second metal, wherein the coating layer may include a region having a predetermined tendency that the concentrations of the first metal and the second metal are changed. In addition, a method of manufacturing the cathode active material for a lithium secondary battery is provided.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 15, 2023
    Inventors: Sung Soon PARK, Ji Hoon CHOI, Ji Sun LEE, Tae Kyoung LEE, Dong ll JANG
  • Publication number: 20230173258
    Abstract: A lead structure includes a lead having an electrode wire having one end provided as an insertion portion to be inserted into a body and the other end provided as an interface portion for connection with an external device, a first electrode in the insertion portion to transmit electrical stimulation to body organs, a second electrode on the interface portion to receive electrical stimulation applied from outside, and a signal line configured to interconnect the first electrode and the second electrode and transmit the electrical stimulation received by the second electrode to the first electrode; and a lead case configured to surround the lead, and a conductive plate configured to apply electrical stimulation to body organs and a support plate configured to provide electrical stimulation from the first electrode to the conductive plate by contacting the first electrode.
    Type: Application
    Filed: March 30, 2021
    Publication date: June 8, 2023
    Inventors: Eun Kyoung PARK, Tae Kyung KIM, Tae Woo KIM, Dong Il CHOI, Kyu Sung LEE
  • Publication number: 20230173259
    Abstract: A lead implanted in a body to apply electrical stimulation to body organs includes an electrode wire having one end provided as an insertion portion to be inserted into a body and another end provided as an interface portion for connection with an external device; a first electrode in the insertion portion to transmit electrical stimulation to body organs; a second electrode on the interface portion to receive electrical stimulation applied from outside; a signal line that interconnects the first electrode and second electrode to transmit electrical stimulation received by the second electrode to the first electrode; and a ring member that covers the first electrode and has an opening for exposing the first electrode in a portion of a circumferential direction, and is mounted to be movable in a longitudinal or circumferential direction with respect to the electrode wire by an external force to adjust an exposure position of the first electrode.
    Type: Application
    Filed: April 1, 2021
    Publication date: June 8, 2023
    Inventors: Eun Kyoung PARK, Tae Kyung KIM, Min Hee KANG, Kyu Sung LEE
  • Publication number: 20230173260
    Abstract: The lead implanted in a body to apply electrical stimulation to body organs may include: an electrode wire having one end provided as an insertion portion to be inserted into a body and the other end provided as an interface portion for connection with an external device to transmit a stimulation signal: a plurality of first electrodes in the insertion portion; a plurality of second electrodes on the interface portion; and a plurality of signal lines interconnecting the first electrodes and the second electrodes, wherein the insertion portion of the electrode wire includes a plurality of support portions on which the first electrodes are respectively disposed and a plurality of stretchable portions between the support portions and expandable and contractible, and further includes an operation unit for pushing or pulling each support portion in a longitudinal direction of the electrode wire to adjust a position of the support portion.
    Type: Application
    Filed: April 1, 2021
    Publication date: June 8, 2023
    Inventors: Eun Kyoung PARK, Tae Kyung KIM, Tae Woo KIM, Kyu Sung LEE
  • Publication number: 20230165527
    Abstract: Disclosed are a CBT-I treatment system for the treatment of insomnia and an operation method thereof. In accordance with an aspect of the present disclosure, a CBT-I treatment server including a database configured to store a plurality of CBT-I programs for insomnia treatment; a sleep evaluator configured to generate sleep evaluation data of an insomnia patient based on biosignal data including a change in a biosignal during sleep of the insomnia patient; a CBT-I prescriber configured to determine a CBT-I program for insomnia treatment of the insomnia patient from among the plural CBT-I programs based on the sleep evaluation data and to generate a CBT-I prescription including the determined CBT-I program; and a communicator configured to receive a biosignal from a biosignal collection device for generating biosignal data by sensing a change in a biosignal during sleep of the insomnia patient and to transmit the CBT-I prescription to an insomnia patient's terminal is provided.
    Type: Application
    Filed: November 29, 2022
    Publication date: June 1, 2023
    Applicant: HONEYNAPS CO., LTD.
    Inventors: Young Jun LEE, Tae Kyoung HA
  • Publication number: 20230155129
    Abstract: A cathode active material for a sulfide-based all-solid-state battery according to embodiments of the present invention includes a first lithium-transition metal composite oxide particle having a secondary particle structure that includes a plurality of primary particles therein. The first lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles.
    Type: Application
    Filed: November 11, 2022
    Publication date: May 18, 2023
    Inventors: Sang Min PARK, Hee Jun KWEON, Sang Bok KIM, Tae Kyoung LEE, Ji Hoon CHOI
  • Patent number: 11637279
    Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: April 25, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Sang Bok Kim, Sang Hye Shin, Sang Min Park, Tae Kyoung Lee, Myoung Lae Kim, Jeong Bae Yoon, Jik Soo Kim, Ji Hoon Choi
  • Publication number: 20230105644
    Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
    Type: Application
    Filed: November 25, 2022
    Publication date: April 6, 2023
    Inventors: Sang Bok KIM, Sang Hye Shin, Sang Min Park, Tae Kyoung Lee, Myoung lae Kim, Jeong Bae Yoon, Jik Soo Kim, Ji Hoon Choi
  • Patent number: 11621412
    Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: April 4, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Sang Min Park, Tae Kyoung Lee, Sang Bok Kim, Jik Soo Kim, Sang Hye Shin, Yu Na Shim, Jeong Bae Yoon
  • Publication number: 20220367851
    Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes a lithium-transition metal composite oxide particle including a plurality of primary particles, and the lithium-transition metal composite oxide particle includes a lithium-sulfur-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
    Type: Application
    Filed: October 27, 2021
    Publication date: November 17, 2022
    Inventors: Sang Bok KIM, Sang Hye SHIN, Sang Min PARK, Tae Kyoung LEE, Myoung Lae KIM, Jeong Bae YOON, Jik Soo KIM, Ji Hoon CHOI
  • Publication number: 20220320507
    Abstract: A cathode active material for a lithium secondary battery according to embodiments of the present invention has a high-nickel composition and includes a lithium-nickel composite metal oxide particle in which lithium, nickel and a metal having an oxidation number of +2 are combined in a predetermined range. A cation disorder caused when a nickel ion is present at a lithium-ion site is reduced to improve structural stability of the cathode active material. An initial capacity and a battery efficiency of a lithium secondary battery can be improved using the cathode active material.
    Type: Application
    Filed: March 29, 2022
    Publication date: October 6, 2022
    Inventors: Mi Jung NOH, Jik Soo KIM, Jae Ho CHOI, Tae Kyoung LEE, Sang Bok KIM, Sang Min PARK
  • Publication number: 20220310997
    Abstract: A cathode active material for a lithium secondary battery according to embodiments of the present invention has a high-nickel composition and includes a lithium-nickel composite metal oxide particle in which lithium, nickel and a metal having an oxidation number of +2 are combined in a predetermined range. A cation disorder caused when a nickel ion is present at a lithium-ion site is reduced to improve structural stability of the cathode active material. An initial capacity and a battery efficiency of a lithium secondary battery can be improved using the cathode active material.
    Type: Application
    Filed: October 27, 2021
    Publication date: September 29, 2022
    Inventors: Mi Jung NOH, Jik Soo KIM, Jae Ho CHOI, Tae Kyoung LEE, Sang Bok KIM, Sang Min PARK
  • Publication number: 20220293920
    Abstract: A cathode active material for a secondary battery includes a lithium metal oxide particle having a secondary particle structure in which a plurality of primary particles are aggregated, a first coating portion formed on at least a portion of a surface of the lithium metal oxide particle, the first coating portion including a first metal, and a second coating portion formed on at least a portion of an interface between the primary particles, the second coating portion including a second metal. A secondary battery including the cathode active material is provided.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 15, 2022
    Inventors: Hee Jun KWEON, Sung Soon PARK, Jik Soo KIM, Tae Kyoung LEE, Ji Hoon CHOI, Dong Wook HA
  • Publication number: 20220285667
    Abstract: The cathode active material for a lithium secondary battery according to embodiments of the present invention includes lithium-transition metal composite oxide particles including a plurality of primary particles, and the lithium-transition metal composite oxide particles have a lithium-potassium-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by preventing the layer structure deformation of the primary particles and removing residual lithium.
    Type: Application
    Filed: November 23, 2021
    Publication date: September 8, 2022
    Inventors: Sang Min PARK, Tae Kyoung Lee, Sang Bok Kim, Jik Soo Kim, Sang Hye Shin, Yu Na Shim, Jeong Bae Yoon
  • Publication number: 20220216469
    Abstract: A cathode active material for a lithium secondary battery is provided. According to embodiments of the present invention, the cathode active material includes a lithium-transition metal composite oxide particle including a plurality of primary particles. The lithium-transition metal composite oxide particle has a lithium-boron-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by removing residual lithium.
    Type: Application
    Filed: January 6, 2022
    Publication date: July 7, 2022
    Inventors: Sang Bok Kim, Tae Kyoung Lee, Mi Jung Noh, Ji Hoon Choi, Dong Wook Ha