Patents by Inventor Heon-Jin Choi

Heon-Jin 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: 20250185966
    Abstract: The present invention provides the electrode structure of a neural probe including electrodes for bio-signal measurement and stimulation. In an embodiment, the present invention provides an electrode structure for a neural probe that measures bio-logical signals or applies stimulation, the electrode structure including: a substrate; electrodes formed on at least one surface of the substrate; and a wiring formed on the substrate and connected to the electrodes; wherein the electrodes include one or more measurement electrodes connected to a measurement circuit and one or more stimulation electrodes connected to a stimulation circuit.
    Type: Application
    Filed: January 27, 2023
    Publication date: June 12, 2025
    Inventors: Heon-Jin CHOI, Jae-Suk SUNG, Young-Cheol CHAE
  • Publication number: 20250185970
    Abstract: The present invention provides the electrode structure of a neural probe including electrodes for bio-signal measurement and stimulation. As an embodiment, the present invention provides an electrode structure for a neural probe that measures bio-logical signals or applies stimulation, the electrode structure including: a substrate; electrodes formed on at least one surface of the substrate; and a wiring formed on the substrate and connected to the electrodes; wherein the electrodes comprise one or more measurement electrodes connected to a measurement circuit and one or more stimulation electrodes connected to a stimulation circuit.
    Type: Application
    Filed: January 27, 2023
    Publication date: June 12, 2025
    Inventors: Heon-Jin CHOI, Jae-Suk SUNG, Young-Cheol CHAE
  • Publication number: 20250160717
    Abstract: The present invention is intended to alleviate the burden when a neural probe is inserted into a living body and to make the handling of the neural probe convenient. In an embodiment, the present invention provides a neural probe including an electrode part configured to be inserted into the human body, and a connection part connected to the electrode part and provided with a terminal that is electrically connected to electrodes; wherein the electrode part and the connection part each include a flexible substrate, a wiring, and an insulation layer; wherein the electrode part includes the electrodes disposed on one surface of the substrate and connected to the wiring; wherein the connection part includes a terminal formed on one surface of the substrate and connected to the wiring; and wherein the connection part includes a dummy pattern portion separated from the electrodes or terminal.
    Type: Application
    Filed: January 27, 2023
    Publication date: May 22, 2025
    Inventors: Heon-Jin CHOI, Jae-Suk SUNG, Young-Cheol CHAE
  • Patent number: 12186576
    Abstract: An energy concentration apparatus is disclosed. The energy concentration apparatus includes a body part; a loop antenna coil part disposed on the body part; and a cover part coupled to the body part in order to cover the loop antenna coil part. The cover part has a central hole and a micro-slit.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: January 7, 2025
    Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
    Inventors: Heon Jin Choi, Jae Suk Sung
  • Patent number: 12109030
    Abstract: Disclosed herein is a biosensor capable of receiving bioelectric stimulation or bio-signals. The biosensor has a pillar-type electrode structure that is coated with a non-conductive material. The biosensor includes an electrode substrate, and an electrode structure having a plurality of pillar electrodes protruding on the substrate. The pillar-type electrode structure is coated with the non-conductive material in at least one of: a first coating structure in which at least one or more of the plurality of pillar electrodes are coated with the non-conductive material and at least a portion of a side surface of each of the coated pillar electrodes is coated with the non-conductive material; and a second coating structure in which at least one of a top surface of the substrate and bottom surfaces of the at least one or more of the pillar electrodes are coated with the non-conductive material.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: October 8, 2024
    Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
    Inventors: Heon Jin Choi, Jae Suk Sung
  • Patent number: 11813455
    Abstract: Provided herein is a stimulating device being equipped with an electrode element recording and stimulating nerve signals for diagnosis and treatment of chronic pain or Alzheimer's disease and, most particularly, to a stimulating device providing electrical stimulation for chronic pain or Alzheimer's-causing proteins or measuring bio signals. The stimulating device includes a controller, a substrate being coupled to a bottom of the controller, and having a power receiving and signal delivering electrode being mounted thereon as a single body or being distinctively mounted thereon, wherein the power receiving and signal delivering electrode is capable of wirelessly receiving power and wirelessly delivering bio signals, and an electrode element being coupled to a bottom of the substrate and being capable of delivering electrical stimulation to tissues inside a body.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: November 14, 2023
    Assignees: Yonsei University Industry Foundation, Nformare Inc.
    Inventors: Heon Jin Choi, Jae Suk Sung, Youngcheol Chae
  • Patent number: 11715581
    Abstract: An electric field shaping apparatus according to a present embodiment includes a substrate, a first electrode positioned on the substrate, a second electrode spaced apart from the first electrode, a power source configured to provide a voltage between the first electrode and the second electrode, and an insulating material with which the first electrode is coated, wherein one or more holes configured to shape an electric field generated between the first electrode and the second electrode are formed in the insulating material.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: August 1, 2023
    Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
    Inventors: Heon Jin Choi, Jae Suk Sung
  • Publication number: 20220270781
    Abstract: An electric field shaping apparatus according to a present embodiment includes a substrate, a first electrode positioned on the substrate, a second electrode spaced apart from the first electrode, a power source configured to provide a voltage between the first electrode and the second electrode, and an insulating material with which the first electrode is coated, wherein one or more holes configured to shape an electric field generated between the first electrode and the second electrode are formed in the insulating material.
    Type: Application
    Filed: February 24, 2021
    Publication date: August 25, 2022
    Inventors: Heon Jin Choi, Jae Suk Sung
  • Publication number: 20220187277
    Abstract: Provided herein is a device for measuring heavy metals having an electrode element and, most particularly, a device for measuring heavy metals having an electrode element including a device for measuring heavy metals having an electrode element including a substrate having a wireless communication electrode for wirelessly delivering an electrical variance that is measured from an electrode, when measuring heavy metals, an electrode element delivering an electrical signal for measuring heavy metals, and a controller controlling electric current application to the electrode element and detecting a quantity of electricity between electrodes being measured from a measurement object contaminated by heavy metal, or calculating a displacement between a reference quantity of electricity and a measured quantity of electricity.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 16, 2022
    Applicants: Yonsei University Industry Foundation, Nformare Inc.
    Inventors: Heon Jin CHOI, Jae Suk SUNG, Youngcheol CHAE
  • Publication number: 20220184398
    Abstract: Provided herein is a stimulating device being equipped with an electrode element recording and stimulating nerve signals for diagnosis and treatment of chronic pain or Alzheimer's disease and, most particularly, to a stimulating device providing electrical stimulation for chronic pain or Alzheimer's-causing proteins or measuring bio signals. The stimulating device includes a controller, a substrate being coupled to a bottom of the controller, and having a power receiving and signal delivering electrode being mounted thereon as a single body or being distinctively mounted thereon, wherein the power receiving and signal delivering electrode is capable of wirelessly receiving power and wirelessly delivering bio signals, and an electrode element being coupled to a bottom of the substrate and being capable of delivering electrical stimulation to tissues inside a body.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 16, 2022
    Applicants: Yonsei University Industry Foundation, Nformare Inc.
    Inventors: Heon Jin CHOI, Jae Suk SUNG, Youngcheol CHAE
  • Publication number: 20220008740
    Abstract: Disclosed herein is an energy concentration apparatus having a central hole and a micro-slit. The energy concentration apparatus including: a body part; a loop antenna coil part disposed on the body part; and a cover part coupled to the body part in order to cover the loop antenna coil part. The cover part has a central hole and a micro-slit.
    Type: Application
    Filed: June 3, 2021
    Publication date: January 13, 2022
    Inventors: Heon Jin CHOI, Jae Suk Sung
  • Publication number: 20210401351
    Abstract: Disclosed herein are a neural signal feedback system and method. The neural signal feedback system includes: a microelectrode array unit configured such that a plurality of microelectrodes is disposed on a substrate and such that one microelectrode, which is a reference electrode, and corresponding electrode groups including other microelectrodes located at different same distances from the reference electrode are set; and an analysis and determination unit configured to compare neural signal values, measured in the microelectrode array unit, with a preset reference value, and to determine whether to apply the electrical stimulation of the microelectrode array unit. The analysis and determination unit performs re-measurement after the application of electrical stimulation, and repeats the application of electrical stimulation and measurement until the measured values reach the reference value.
    Type: Application
    Filed: June 3, 2021
    Publication date: December 30, 2021
    Inventors: Heon Jin Choi, Jae Suk Sung
  • Publication number: 20210204855
    Abstract: The present invention provides a biosignal measuring and stimulating device having bioelectrodes in which a signal measurement unit (200) including bioelectrodes composed of a plurality of microelectrodes (210) is disposed on a substrate (100), wherein the signal measurement unit (200), a measured signal processing unit (300), and at least one of a driving power unit (400) and a wireless communication unit (500) are disposed on the substrate (100) in a vertical or lateral direction, and the biosignal measuring and stimulating device measures biosignals or stimulates from the microelectrodes formed in an array pattern.
    Type: Application
    Filed: September 2, 2019
    Publication date: July 8, 2021
    Inventors: Heon-Jin CHOI, Youngcheol CHAE, Jae-Suk SUNG, Ju Kwan NA
  • Publication number: 20210196178
    Abstract: Disclosed herein is a biosensor capable of receiving bioelectric stimulation or bio-signals. The biosensor has a pillar-type electrode structure that is coated with a non-conductive material. The biosensor includes an electrode substrate, and an electrode structure having a plurality of pillar electrodes protruding on the substrate. The pillar-type electrode structure is coated with the non-conductive material in at least one of: a first coating structure in which at least one or more of the plurality of pillar electrodes are coated with the non-conductive material and at least a portion of a side surface of each of the coated pillar electrodes is coated with the non-conductive material; and a second coating structure in which at least one of a top surface of the substrate and bottom surfaces of the at least one or more of the pillar electrodes are coated with the non-conductive material.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Inventors: Heon Jin CHOI, Jae Suk SUNG
  • Patent number: 9283386
    Abstract: Provided is a neural device including a nanowire and a support layer. Further, provided is a neural device including: a substrate, at least one nanowire which is fixed on the substrate at a lengthwise end thereof to extend vertically and inserted into nerves to obtain electrical signals from nerve fibers or apply electrical signals to the nerve fibers; and a support layer which is formed on the substrate and which surrounds and supports at least one portion of the nanowire.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 15, 2016
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Seung Han Park, Jong Ill Hong, Jae Young Choi, Heon Jin Choi, Jae Chul Pyun
  • Publication number: 20140228738
    Abstract: Provided is a neural device including a nanowire and a support layer. Further, provided is a neural device including: a substrate, at least one nanowire which is fixed on the substrate at a lengthwise end thereof to extend vertically and inserted into nerves to obtain electrical signals from nerve fibers or apply electrical signals to the nerve fibers; and a support layer which is formed on the substrate and which surrounds and supports at least one portion of the nanowire.
    Type: Application
    Filed: January 25, 2013
    Publication date: August 14, 2014
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Seung Han Park, Jong Ill Hong, Jae Young Choi, Heon Jin Choi, Jae Chul Pyun
  • Patent number: 8060217
    Abstract: The present invention relates to a neural device comprising wires transmitting and receiving electric signals. More specifically, the present invention relates to a structure of the neural device comprising wires which effectively obtain electric signals developed in nerve fibers and transmit electric stimuli to the nerve fibers. The neural device according to the present invention is connected to a processing module processing electric signals detected from nerve fibers, and the neural device is inserted in nerve fibers via nanowires to obtain electric signals from the nerve fibers, or inserted in the nerve fibers to transmit electric stimuli. The neural device may further provide with at least one through-hole and support. The neural device according to the present invention has an advantage that may obtain electric signals without killing nerve fibers or provide them with electric stimuli.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: November 15, 2011
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Seung Han Park, Jong Il Hong, Jae Young Choi, Heon Jin Choi
  • Patent number: 7799291
    Abstract: An apparatus for fabricating ZnO nanostructures includes a heating element, a horizontal reaction tube having an inlet and an outlet. The reaction tube is positioned inside the interior cavity of the heating element with the inlet disposed to introduce a carrier gas into the reaction tube. The apparatus includes a source of a carrier gas in flow communication with the inlet, a container within the reaction tube that is disposed to receive and contain source materials comprising ZnO and graphite. An array of solid substrates is located on the container above the source materials. Adjacent substrates in the array are positioned with a space in between to allow the carrier gas to impinge on the source materials in the container.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: September 21, 2010
    Assignee: Korea Institute of Science and Technology
    Inventors: Jae-Hwan Park, Heon-Jin Choi, Jae-Gwan Park
  • Patent number: 7655902
    Abstract: This invention relates to a nanowire-assisted method for mass spectrometric analysis of a specimen. More specifically, by using nanowire which can fix a specimen and perform desorption/ionization of the specimen while effectively transferring laser energy to the specimen to be irradiated, thereby enabling to perform mass spectrometric analysis without using a matrix solution. This invention, by effectively performing desorption/ionization of a specimen using the above-mentioned nanowire, enables to effectively perform qualitative-, quantitative-, and micro-analyses of specimens as well as low molecular weighted specimens. Further, this invention enables to the typical device of mass spectrometric analysis used in MALDI-T of MS. In particular, this invention can perform mass spectrometric analysis of a specimen with molecular weight of less than 1,000 Da and perform quantitative analysis by fixing a specimen with a predetermined area.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: February 2, 2010
    Assignee: Korea Institute of Science and Technology
    Inventors: Heon Jin Choi, Jae Chul Pyun
  • Patent number: 7575631
    Abstract: The present invention relates to a fabrication method of gallium manganese nitride (GaMnN) single crystal nanowire, more particularly to a fabrication method of GaMnN single crystal nanowire substrate by halide vapor phase epitaxy (HVPE) in which such metal components as gallium (Ga) and manganese (Mn) react with such gas components as nitrogen (N2), hydrogen chloride (HCl) and ammonia (NH3), wherein the amount of the gas components are adjusted to control the Mn doping concentration in order to obtain nanowire having a perfect, one-dimensional, single crystal structure without internal defect, concentration of holes, or carriers, and magnetization value of which being determined by the doping concentration and showing ferromagnetism at room temperature, thus being a useful spin transporter in the field of the next-generation spintronics, such as spin-polarized LED, spin-polarized FET, etc.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: August 18, 2009
    Assignee: Korea Institute of Science and Technology
    Inventors: Yun-Ki Byeun, Kyong Sop Han, Han Kyu Seong, Heon Jin Choi, Sung Churl Choi