Patents by Inventor Jae Jun Ko

Jae Jun Ko 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).

  • Patent number: 11480693
    Abstract: A billing system based on radon concentration pattern analysis and a method therefor is provided, the system including a radon detection device counting the output alpha particle detection signals for a predetermined measurement time to calculate a radon concentration value; and a cloud server storing generating a radon concentration pattern corresponding to the radon detection device by using a radon concentration value received from the radon detection device and calculating a cost for radon monitoring service provided to a terminal of the user, wherein the cloud server analyzes the generated radon concentration pattern and determines the periodic behavior pattern of the user for a predetermined period of time, whereby it is possible to charge a radon monitoring service fee for each user using the radon monitoring service, and the user may be motivated to frequently perform the ventilation action that reduces the radon concentration.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: October 25, 2022
    Assignee: FTLAB CO., LTD.
    Inventors: Jae-Jun Ko, Young-Gweon Kim
  • Publication number: 20220336835
    Abstract: Disclosed are an antioxidant for fuel cells, a membrane electrode assembly including the same and a method for preparing the antioxidant. The antioxidant for fuel cells includes a core including at least one selected from the group consisting of a metal oxide (MxOk) and a complex metal oxide (MxNyOj, N and M being different metals), and an outer portion (e.g., a shell) located on or over a surface of the core and formed by performing reduction treatment of the surface of the core using a thiourea-based compound. The outer portion includes metal cations (M(x-n)+, n being a natural number of 1 or more) having a smaller oxidation number than a valency of the metal (M) of the core.
    Type: Application
    Filed: July 1, 2022
    Publication date: October 20, 2022
    Inventors: Jae Jun Ko, In Yu Park, Bo Ki Hong
  • Patent number: 11394044
    Abstract: Disclosed are an antioxidant for fuel cells, a membrane electrode assembly including the same and a method for preparing the antioxidant. The antioxidant for fuel cells includes a core including at least one selected from the group consisting of a metal oxide (MxOk) and a complex metal oxide (MxNyOj, N and M being different metals), and an outer portion (e.g., a shell) located on or over a surface of the core and formed by performing reduction treatment of the surface of the core using a thiourea-based compound. The outer portion includes metal cations (M(x?n)+, n being a natural number of 1 or more) having a smaller oxidation number than a valency of the metal (M) of the core.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: July 19, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Jun Ko, In Yu Park, Bo Ki Hong
  • Patent number: 11349140
    Abstract: Disclosed is an antioxidant for an electrolyte membrane of fuel cells. The antioxidant may include a support including silicon dioxide and having a nanotube shape, and a metal oxide supported on the support.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: May 31, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Jun Ko, Bo Ki Hong, In Yu Park, Hyoung Juhn Kim, So Young Lee, Song I Oh
  • Patent number: 11335920
    Abstract: Disclosed are a membrane electrode assembly with a sub-gasket and a manufacturing method thereof. The membrane electrode assembly includes an electrolyte membrane, the sub-gasket formed in an edge region of the electrolyte membrane to surround a central region of the electrolyte membrane, and an adhesive layer formed between the electrolyte membrane and the sub-gasket and including an adhesive material and an antioxidant. The electrolyte membrane is formed to have a flat surface in a first direction, the sub-gasket extends in the first direction and a second direction vertical to the first direction, and the antioxidant includes a metal salt hydrate.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 17, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Jun Ko, In Yu Park, Bo Ki Hong
  • Patent number: 11322300
    Abstract: Provided are a core for a current transformer and a manufacturing method for the same in which high permittivity is formed in order to optimize electric power acquisition efficiency by magnetic induction at a low current. The provided method of manufacturing a core through the steps of winding a metal ribbon, heat treating a core base, impregnating, cutting and polishing, wherein after the core base which is inserted into a mold is heat treated to implement a shape, the core base separated from the mold is heat treated to manufacture the core for the current transformer having high permittivity.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: May 3, 2022
    Assignee: AMOSENSE CO., LTD
    Inventors: Won-San Na, Jin-Pyo Park, Young-Joon Kim, Jae-Jun Ko, Su-Hyeoung Tak
  • Publication number: 20220099628
    Abstract: A mobile device for measuring radon in groundwater is proposed. The mobile device for measuring radon in groundwater has an effect in that the mobile device enables a user to achieve the same level of reliability as the conventional technology, a previously applied separate dehumidifying device is not required in measuring the radon concentration in groundwater, and while moving from site to site, the user is able to quickly measure the radon concentration in groundwater by the mobile device with a simple configuration and low cost.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 31, 2022
    Applicant: FTLAB CO., LTD.
    Inventors: Jae Jun KO, Young Gweon KIM, Yong Jin SEO, Min Jae MAENG
  • Publication number: 20220099321
    Abstract: A radon management system using a radon detector is proposed. The system includes: at least one radon detector installed in a specific space indoors or outdoors, and configured to detect in real time alpha particles present in the specific space, output a predetermined alpha particle detection signal, count for a preset measurement time to calculate and transmit an alpha particle concentration value, and transmit unique device identification information; and a radon management server configured to collect the unique device identification information and alpha particle concentration value, calculate and quantify an average value of the collected alpha particle concentration values to be converted into a database for each radon detector, store and manage the average value, compare the alpha particle concentration value and the average values of the previously stored alpha particle concentration value to each other to calculate a change amount thereof, and generate radon generation event information data.
    Type: Application
    Filed: September 21, 2020
    Publication date: March 31, 2022
    Applicant: FTLAB CO., LTD.
    Inventors: Jae Jun KO, Young Gweon KIM
  • Patent number: 11239472
    Abstract: Disclosed is a method of manufacturing an electrolyte membrane including an antioxidant. The method may include forming a first dispersion liquid including deionized water, a first ionomer dispersion solution and an antioxidant, and forming a second dispersion liquid including the first dispersion liquid and a second ionomer dispersion solution.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: February 1, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Inyu Park, Jae Jun Ko, Bo Ki Hong
  • Patent number: 11169281
    Abstract: A radon sensor device using a polyhedral-shaped ionization chamber is proposed. The radon sensor device includes: an ionization chamber having an open side and inner sides surrounded by a first conductor and generating an electrical field therein by applying bias power to the first conductor; a cover having a first side covered with a second conductor and closing the open side of the ionization chamber such that that first conductor disposed on the inner sides of the ionization chamber and the second conductor are electrically connected; a probe unit disposed in the ionization chamber and absorbing ion charges produced when alpha (?) decay occurs in the ionization chamber; and a measurement circuit detecting an alpha particle detection signal by amplifying and processing an electrical micro-signal input from the probe unit into a predetermined magnitude.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: November 9, 2021
    Assignee: FTLAB CO., LTD.
    Inventors: Jae Jun Ko, Young Gweon Kim
  • Publication number: 20210305611
    Abstract: Disclosed are an antioxidant for a fuel cell having a high degree of dispersion and/or distribution and excellent antioxidant capability and a membrane-electrode assembly including the same. The antioxidant includes a metal oxide and a sulfur- containing organic compound, for example, an organic compound including a sulfinic acid anion group (R—SO2?), adsorbed on the metal oxide.
    Type: Application
    Filed: December 14, 2020
    Publication date: September 30, 2021
    Inventors: Il Seok Chae, Jae Jun Ko, Bo Ki Hong
  • Publication number: 20210255339
    Abstract: An apparatus for measuring radon and thoron using an ionization chamber is proposed. The apparatus includes: a pump for air inflow suctioning and sending external air to at least one channel; a first sensor module outputting an alpha particle detection signal of an electrical signal by detecting alpha (?) particles discharged from radon and thoron; an air inflow delay module delaying air for a predetermined delay time and then outputting the air; a second sensor module outputting an alpha particle detection signal of an electrical signal by detecting alpha (?) particles discharged from radon and thoron; and a control module discriminating normal or abnormal alpha particle detection signals, counting the normal alpha particle detection signals discriminated for a predetermined measurement time, and calculating radioactive ray concentration values on the basis of the counted number of times of the normal alpha particle detection signals.
    Type: Application
    Filed: October 24, 2019
    Publication date: August 19, 2021
    Applicant: FTLAB CO., LTD.
    Inventors: Jae Jun KO, Young Gweon KIM
  • Publication number: 20210247527
    Abstract: A radon sensor device using a polyhedral-shaped ionization chamber is proposed. The radon sensor device includes: an ionization chamber having an open side and inner sides surrounded by a first conductor and generating an electrical field therein by applying bias power to the first conductor; a cover having a first side covered with a second conductor and closing the open side of the ionization chamber such that that first conductor disposed on the inner sides of the ionization chamber and the second conductor are electrically connected; a probe unit disposed in the ionization chamber and absorbing ion charges produced when alpha (?) decay occurs in the ionization chamber; and a measurement circuit detecting an alpha particle detection signal by amplifying and processing an electrical micro-signal input from the probe unit into a predetermined magnitude.
    Type: Application
    Filed: January 17, 2020
    Publication date: August 12, 2021
    Applicant: FTLAB CO., LTD.
    Inventors: Jae Jun KO, Young Gweon KIM
  • Patent number: 11024865
    Abstract: Disclosed are an antioxidant for fuel cells and a membrane-electrode assembly including the same. The membrane-electrode assembly may have obtained greatly improved durability by using an antioxidant having a novel composition that may provide excellent antioxidant activity and long-term durability.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: June 1, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry Foundation of Chonnam National University
    Inventors: In Yu Park, Bo Ki Hong, Jae Jun Ko, Aniket Kumar, Sun Ju Song, Jae Woon Hong
  • Patent number: 11005116
    Abstract: Disclosed are a membrane-electrode assembly for fuel cells having improved durability and a manufacturing method thereof. Hydrogen peroxide, from which a hydroxyl radical is generated, may be removed using an antioxidant having the structure A1-aA?aBO3-? and including strontium or samarium, thereby improving the durability of an electrolyte membrane and an electrode.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 11, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jung Han Yu, Sukhwan Yun, Jong Kil Oh, In Yu Park, Jae Jun Ko, Bo Ki Hong
  • Publication number: 20210088675
    Abstract: A billing system based on radon concentration pattern analysis and a method therefor is provided, the system including a radon detection device counting the output alpha particle detection signals for a predetermined measurement time to calculate a radon concentration value; and a cloud server storing generating a radon concentration pattern corresponding to the radon detection device by using a radon concentration value received from the radon detection device and calculating a cost for radon monitoring service provided to a terminal of the user, wherein the cloud server analyzes the generated radon concentration pattern and determines the periodic behavior pattern of the user for a predetermined period of time, whereby it is possible to charge a radon monitoring service fee for each user using the radon monitoring service, and the user may be motivated to frequently perform the ventilation action that reduces the radon concentration.
    Type: Application
    Filed: November 5, 2019
    Publication date: March 25, 2021
    Applicant: FTLAB co., LTD.
    Inventors: Jae-Jun KO, Young-Gweon Kim
  • Publication number: 20210020976
    Abstract: A method for manufacturing a unit cell for a fuel cell includes preparing a separator having a reaction area located to correspond to an anode or a cathode of the unit cell, a first protrusion protruding from the separator, and a second protrusion spaced apart from the first protrusion with the reaction area interposed therebetween. The method includes providing a passage configured to guide a reaction gas to flow in the reaction area, and arranging a porous passage having a height protruding to become farther away from the separator and to be higher than the first and second protrusions between the first and second protrusions in parallel. The method includes compressing the porous passage toward the separator. The porous passage is fixed to the separator via the first and second protrusions by a force applied between the porous passage and the protrusion as the passage is deformed or is apt to be deformed to be lengthened in a transverse direction due to the compression of the porous passage.
    Type: Application
    Filed: October 6, 2020
    Publication date: January 21, 2021
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Chi Seung Lee, Young Woo Noh, Seong Hak Kim, Seung Ah Yu, Jae Jun Ko, Jang Ho Jo
  • Publication number: 20200335276
    Abstract: Provided are a core for a current transformer and a manufacturing method for the same in which high permittivity is formed in order to optimize electric power acquisition efficiency by magnetic induction at a low current. The provided method of manufacturing a core through the steps of winding a metal ribbon, heat treating a core base, impregnating, cutting and polishing, wherein after the core base which is inserted into a mold is heat treated to implement a shape, the core base separated from the mold is heat treated to manufacture the core for the current transformer having high permittivity.
    Type: Application
    Filed: October 24, 2017
    Publication date: October 22, 2020
    Applicant: Amosense Co., Ltd
    Inventors: Won-San NA, Jin-Pyo PARK, Young-Joon KIM, Jae-Jun KO, Su-Hyeoung TAK
  • Publication number: 20200321625
    Abstract: Disclosed is a method of manufacturing an electrolyte membrane including an antioxidant. The method may include forming a first dispersion liquid including deionized water, a first ionomer dispersion solution and an antioxidant, and forming a second dispersion liquid including the first dispersion liquid and a second ionomer dispersion solution.
    Type: Application
    Filed: October 9, 2019
    Publication date: October 8, 2020
    Inventors: Inyu Park, Jae Jun Ko, Bo Ki Hong
  • Publication number: 20200313213
    Abstract: Disclosed are an antioxidant which increases chemical durability of a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The antioxidant may prevent chemical degradation of the fuel cell and have improved antioxidation capability through a reduction reaction annealing process.
    Type: Application
    Filed: February 10, 2020
    Publication date: October 1, 2020
    Inventors: In Yu Park, Jae Jun Ko, Bo Ki Hong