Patents by Inventor Young Min Jhon

Young Min Jhon 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: 11639891
    Abstract: The present disclosure relates to a photoacoustic gas sensor for detecting the presence or absence of gas using the interaction of a laser beam and gas molecules. The integrated photoacoustic gas sensor according to an embodiment includes a light output unit; a lens unit configured to concentrate a laser beam output from the light output unit; and a photoacoustic sensing unit having a quartz tuning fork aligned on the lens unit and configured to convert a vibration, generated when the laser beam passing through the lens unit interacts with gas molecules, into an electric signal.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: May 2, 2023
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Joonhyun Kang, Il Ki Han, S. Joon Kwon, Young Min Jhon
  • Publication number: 20220120669
    Abstract: The present disclosure relates to a photoacoustic gas sensor for detecting the presence or absence of gas using the interaction of a laser beam and gas molecules. The integrated photoacoustic gas sensor according to an embodiment includes a light output unit; a lens unit configured to concentrate a laser beam output from the light output unit; and a photoacoustic sensing unit having a quartz tuning fork aligned on the lens unit and configured to convert a vibration, generated when the laser beam passing through the lens unit interacts with gas molecules, into an electric signal.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 21, 2022
    Inventors: Joonhyun KANG, Il Ki HAN, S. Joon KWON, Young Min JHON
  • Patent number: 10804674
    Abstract: Provided are a saturable absorber including at least one material selected from a group of MXenes, and a Q-switching and mode-locked pulsed laser system using the same.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: October 13, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young Min Jhon, Young In Jhon, Byunghyuck Moon, Minah Seo, Taikjin Lee, Jae Hun Kim, Young Tae Byun, Seok Lee
  • Patent number: 10753804
    Abstract: The present invention relates to a terahertz (THz) wave detecting sensor including a MXene material represented by the following Formula 1 as a sensing material: M(n+1)Xn,??[Formula 1] wherein, in Formula 1, M is at least one transition metal selected from early transition metal elements, X is at least one selected from C and N, and n is an integer selected from 1 to 3.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: August 25, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young Min Jhon, Minah Seo, Young In Jhon
  • Patent number: 10723456
    Abstract: The present invention relates to an unmanned aerial vehicle system having a multi-rotor type rotary wing. The unmanned aerial vehicle system having a multi-rotor type rotary wing includes a first unmanned aerial vehicle, at least one second unmanned aerial vehicle, and a bridge that connects the first unmanned aerial vehicle and the at least one second unmanned aerial vehicle to be separable from each other, wherein the at least one second unmanned aerial vehicle is moveable by the first unmanned aerial vehicle in a state where the at least one second unmanned aerial vehicle is coupled to the first unmanned aerial vehicle by the bridge without being driven, and the at least one second unmanned aerial vehicle is separable from the first unmanned aerial vehicle which is in flight.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 28, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Taikjin Lee, Suk Woo Nam, Chang Won Yoon, Hyun Seo Park, Young Min Jhon, Seok Lee, Min-Jun Choi
  • Patent number: 10700278
    Abstract: The present invention provides a chalcogenide phase-change material represented by the following Chemical Formula 1, and a memory device including the same. Ma(AxSbyTe(1-x-y))b??[Chemical Formula 1] In Chemical Formula 1, M denotes an element having a doping formation energy ?Ef in a range of ?3 eV/atom to 0.5 eV/atom, A denotes indium (In) or germanium (Ge), a and b are each positive numbers and selected to satisfy a+b=1, x ranges from 0.15 to 0.3, and y ranges from 0.05 to 0.25.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: June 30, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young Min Jhon, Yong Tae Kim, Chun Keun Kim, Young-Hwan Kim, Minho Choi, Sehyun Kwon
  • Publication number: 20200158576
    Abstract: The present invention relates to a terahertz (THz) wave detecting sensor including a MXene material represented by the following Formula 1 as a sensing material: M(n+1)Xn,??[Formula 1] wherein, in Formula 1, M is at least one transition metal selected from early transition metal elements, X is at least one selected from C and N, and n is an integer selected from 1 to 3.
    Type: Application
    Filed: March 5, 2019
    Publication date: May 21, 2020
    Inventors: Young Min JHON, Minah SEO, Young In JHON
  • Patent number: 10656082
    Abstract: A system for adjusting transmittance, according to the present disclosure, includes a sensing device configured to amplify electromagnetic waves of a specific frequency and a squeegee configured to concentrate a target material inside a slot formed in the sensing device. A transmittance of the sensing device is adjusted according to concentration of the target material concentrated inside the slot by the squeegee.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 19, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Minah Seo, Yongsang Ryu, Young Min Jhon, Jaehun Kim, Taikjin Lee, Chulki Kim
  • Patent number: 10630045
    Abstract: The present disclosure discloses a double trigger type single pulse laser apparatus configured to suppress additional pulses to increase single pulse energy and improve stability of output as compared to a conventional single trigger type single pulse laser apparatus. According to the present invention, there is provided a single pulse laser apparatus including a resonator which has a first mirror, a second mirror, a gain medium, an electro-optic modulator and an acousto-optic modulator configured to respectively perform Q-switching and mode-locking, the single pulse laser apparatus including a first photodiode configured to measure a laser beam oscillated by the resonator.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: April 21, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Young Min Jhon, Hui Dong Yang, Byunghyuck Moon, Minah Seo, Chulki Kim, Taikjin Lee, Yongsang Ryu, Hyunseok Song, Jaehun Kim
  • Patent number: 10620343
    Abstract: A metamaterial for an electromagnetic wave filter includes a substrate; and a film disposed on the substrate and having a set of slots arranged to form a rotationally symmetric pattern, which is patterned in an intaglio shape, or a set of structures arranged to form a rotationally symmetric pattern, which is patterned in an embossed shape, to control a transmission rate according to polarization of an electromagnetic wave incident on the film. The set of slots or the set of structures have an array angle that is determined such that the transmission rate and a reflectivity thereof have constant values according to the polarization of the electromagnetic wave incident on the film, and have a chloroplast molecular structure pattern in which the set of slots or the set of structures are arranged in pentagonal and hexagonal shapes.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: April 14, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Minah Seo, Sanghun Lee, Deokha Woo, Jaehun Kim, Taikjin Lee, Jaebin Choi, Chulki Kim, Joo-Hiuk Son, Young Min Jhon
  • Publication number: 20200083445
    Abstract: The present invention provides a chalcogenide phase-change material represented by the following Chemical Formula 1, and a memory device including the same. Ma(AxSbyTe(1-x-y))b??[Chemical Formula 1] In Chemical Formula 1, M denotes an element having a doping formation energy ?Ef in a range of ?3 eV/atom to 0.5 eV/atom, A denotes indium (In) or germanium (Ge), a and b are each positive numbers and selected to satisfy a+b=1, x ranges from 0.15 to 0.3, and y ranges from 0.05 to 0.25.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 12, 2020
    Inventors: Young Min JHON, Yong Tae KIM, Chun Keun KIM, Young-Hwan KIM, Minho CHOI, Sehyun KWON
  • Patent number: 10555692
    Abstract: Disclosed herein are a method and a device for sensing sugars, using terahertz electromagnetic waves. By the method, even a trace amount of sugars in a liquid state can be accurately discriminated and sensed, with high sensitivity and selectivity, using a sensing chip that works in a terahertz electromagnetic wave band. Using the method, sugars even at low concentrations can be accurately analyzed with high sensitivity and selectivity in which terahertz electromagnetic waves are irradiated onto sugars through a sensing chip having a meta unit in which a pattern is formed to amplify a frequency corresponding to an absorption frequency of a sugar of interest.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: February 11, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Min-Ah Seo, Dong-Kyu Lee, Jae-Hun Kim, Chul-Ki Kim, Taik-Jin Lee, Young-Min Jhon
  • Patent number: 10557711
    Abstract: Disclosed are an apparatus for estimating a pedestrian position based on pedestrian motion recognition, and a method therefor. The method for estimating the pedestrian position based on pedestrian motion recognition includes recognizing a specific motion of a plurality of motions of the pedestrian, performing a unique pedestrian dead-reckoning (PDR) technique corresponding to the recognized specific motion among unique PDR techniques for each of the plurality of motions of the pedestrian, and estimating the pedestrian's position by the performed unique PDR technique.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: February 11, 2020
    Assignee: Korea Institute of Science And Technology
    Inventors: Taik Jin Lee, Seok Lee, Sun Ho Kim, Jae Hun Kim, Beom Ju Shin, Chul Ki Kim, Young Min Jhon
  • Patent number: 10488333
    Abstract: A method for manufacturing an optical sensor includes forming a reflective metal layer on a substrate, forming an insulator layer on the reflective metal layer, inducing self-assembly of a metal nanostructure layer on the insulator layer, and selectively etching the insulator layer through a reactive ion etching process to form a plurality of pillars and a plurality of spaces defined by the plurality of pillars. The method for manufacturing a plasmonic optical sensor according to this embodiment facilitates the formation of nanostructures difficult to pattern and form on the large scale at a low cost, and provides a plasmonic optical sensor with repeatability.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: November 26, 2019
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong-Sang Ryu, Chulki Kim, Young Min Jhon, Sin-Doo Lee, Eui-Sang Yu, Jae Hun Kim
  • Patent number: 10401320
    Abstract: Provided are a method of fabricating a 3-dimensional transistor sensor and the sensor and a sensor array thereof. The method of fabricating the 3-dimensional transistor sensor includes forming an insulating layer on a silicon substrate, forming a silicon layer on the insulating layer and forming a 3-dimensional silicon fin by etching the silicon layer, forming a source area and a source electrode at one end of the silicon fin, forming a drain area and a drain electrode at the other end the silicon fin, and forming a gate area at a center of the silicon fin, surrounding three surfaces of a gate with a gate insulating layer, forming a sensing gate layer configured to surround a portion of the gate insulating layer, and sealing an upper portion of the gate insulating layer excluding the sensing gate layer.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: September 3, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Young In Jhon, Young Tae Byun, Yong Tae Kim, Young Min Jhon
  • Publication number: 20190204215
    Abstract: A system for adjusting transmittance, according to the present disclosure, includes a sensing device configured to amplify electromagnetic waves of a specific frequency and a squeegee configured to concentrate a target material inside a slot formed in the sensing device. A transmittance of the sensing device is adjusted according to concentration of the target material concentrated inside the slot by the squeegee.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Minah SEO, Yongsang RYU, Young Min JHON, Jaehun KIM, Taikjin LEE, Chulki KIM
  • Patent number: 10288560
    Abstract: Disclosed is a system for observing the conformational change in a protein, which includes a sensing element which is configured to amplify an electromagnetic wave of a specific frequency; a light irradiation unit which is configured to irradiate a photoreceptor protein solution coated on the sensing element with light; an electromagnetic wave irradiation unit which allows an electromagnetic wave to be incident in a direction perpendicular to the bottom surface of the sensing element; a detection unit which is configured to detect an electromagnetic wave reflected from the bottom surface of the sensing element; and a control unit which is configured to observe the conformational change in the photoreceptor protein based on the detected electromagnetic wave.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: May 14, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Minah Seo, Young Min Jhon, Chulki Kim
  • Patent number: 10245557
    Abstract: One aspect of the disclosed is to provide a method of manufacturing a nanoporous multilayer graphene membrane, including a first step of oxidizing a surface of a multilayer graphene membrane, a second step of reducing the oxidized surface of the multilayer graphene to carry out reductive etching such that oxidized carbon atoms on the surface are naturally and randomly dispersed, and a third step of repeatedly performing a series of the first and the second steps until nanopores penetrating the multilayer graphene are formed.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: April 2, 2019
    Assignee: Korea Institute of Science and Technology
    Inventors: Young Min Jhon, Young In Jhon, Seok Lee
  • Publication number: 20190072516
    Abstract: Provided are a method of fabricating a 3-dimensional transistor sensor and the sensor and a sensor array thereof. The method of fabricating the 3-dimensional transistor sensor includes forming an insulating layer on a silicon substrate, forming a silicon layer on the insulating layer and forming a 3-dimensional silicon fin by etching the silicon layer, forming a source area and a source electrode at one end of the silicon fin, forming a drain area and a drain electrode at the other end the silicon fin, and forming a gate area at a center of the silicon fin, surrounding three surfaces of a gate with a gate insulating layer, forming a sensing gate layer configured to surround a portion of the gate insulating layer, and sealing an upper portion of the gate insulating layer excluding the sensing gate layer.
    Type: Application
    Filed: March 29, 2018
    Publication date: March 7, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Young In JHON, Young Tae BYUN, Yong Tae Kim, Young Min JHON
  • Publication number: 20190025204
    Abstract: A method for manufacturing an optical sensor includes forming a reflective metal layer on a substrate, forming an insulator layer on the reflective metal layer, inducing self-assembly of a metal nanostructure layer on the insulator layer, and selectively etching the insulator layer through a reactive ion etching process to form a plurality of pillars and a plurality of spaces defined by the plurality of pillars. The method for manufacturing a plasmonic optical sensor according to this embodiment facilitates the formation of nanostructures difficult to pattern and form on the large scale at a low cost, and provides a plasmonic optical sensor with repeatability.
    Type: Application
    Filed: March 26, 2018
    Publication date: January 24, 2019
    Inventors: Yong-Sang RYU, Chulki KIM, Young Min JHON, Sin-Doo LEE, Eui-Sang YU, Jae Hun KIM