Patents Assigned to Gwangju Institute of Science and Technology
  • Patent number: 10985985
    Abstract: A cloud service system includes an overlay cloud managing unit to totally control an overlay cloud which is the cloud for a developer, a cloud provider to provide an infrastructure in which the overlay cloud is configured, and a direct connection point to physically directly connect the overlay cloud managing unit with the cloud provider.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: April 20, 2021
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jong Won Kim, Jung su Han
  • Patent number: 10983115
    Abstract: The present invention relates to a reusable optical fiber aptasensor using a photo-thermal effect, and more particularly, to a reusable optical fiber aptasensor using white light and a laser. The aptasensor includes a light emitting unit for selectively emitting one of white light and a laser, a sensor unit including a plurality of aptamers, a plurality of gold nanorods, and a silver mirror, a detector for analyzing a wavelength of inputted light, and an optical fiber for connecting the light emitting unit with the sensor unit, and connecting the detector with the sensor unit, wherein the light emitted from the light emitting unit is totally reflected in the optical fiber and irradiated to the sensor unit, and light reflected from the silver mirror of the sensor unit is irradiated to the detector. Accordingly, the aptasensor easily measures concentration of a target material in a sample using the optical fiber.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 20, 2021
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Min Gon Kim, Bo Bin Lee, Jin Ho Park, Ju Young Byun
  • Patent number: 10948595
    Abstract: A laser beam apparatus that is used for detecting vehicles in an intelligent traffic system according to an embodiment includes: a light source generating a laser beam of a short pulse; an optical transmission system converting the laser beam into a line beam; and an optical reception system receiving a beam dispersed rearward and reflected and returned when the line beam is radiated to a vehicle, and calculating a distance value from a reception time difference between the laser beam and the reflected beam, in which a first lens and a second lens that receive a laser from the light source are sequentially arranged in the optical transmission system, and the length of a horizontal axis of the line beam is increased or decreased to fit to the width of a road to be measured, by adjusting the distance between the light source and the first lens.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: March 16, 2021
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyi Hwan Park, Sung Ui Hwang, Jun Hwan Jang, Bum Sik Won
  • Patent number: 10939549
    Abstract: A self-transforming flexible electronic device, according to an embodiment of the present invention, comprises: a substrate having flexible properties and a flexible electronic device attached thereon; shape memory alloys provided on one lateral side of the substrate; and photoresists for fixing the shape memory alloys to the substrate, wherein the shape memory alloys are arranged on the substrate in the form of a plurality of lines, the photoresists are disposed in plurality along the extension direction of each shape memory alloy, and the shape memory alloys can be fixed inside the photoresists and at a predetermined distance away from the substrate.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: March 2, 2021
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jongho Lee, Pyo Kwak
  • Patent number: 10881642
    Abstract: Provided are a compound of chemical formula 1 or 2 and a use thereof. The compound can be advantageously used in the prevention or treatment of metabolic diseases including type 2 diabetes, insulin resistance, or obesity, on the basis of a mechanism of autophagy activation through the promotion of lysosome production.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 5, 2021
    Assignees: Industry-Academic Cooperation Foundation, Yonsei University, Gwangju Institute of Science and Technology
    Inventors: Myung-Shik Lee, Hyejin Lim, Young Eui Jeon, Jin Hee Ahn, H. S. Pagire
  • Patent number: 10871496
    Abstract: Disclosed is a platform detecting glycated hemoglobin as an indicator for diabetes in the blood based on upconverting nanoparticles excited by near-infrared light and luminescence resonance energy transfer.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: December 22, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Min-Gon Kim, Hyo-Young Mun, Eun-Jung Jo
  • Patent number: 10858321
    Abstract: The present invention relates to a composition for inducing cell reprogramming. The indazole derivative compound contained in the composition of the present invention shows an improved biological profile and at the same time can perform efficient cell reprogramming. In addition, unlike conventional compounds (e.g. riversine or BIO) for inducing low-molecular cell reprogramming, the indazole derivative compound of the present invention does not show cytotoxicity and thus is expected to have high growth in the market of cell therapy products when clinically applied. Conventional indazole derivative compounds have never known as a use for cell reprogramming. Compared with conventional indazole derivative compounds, the compound of the present invention has a great cell reprogramming ability while having no or little cytotoxicity.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: December 8, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong Chul Kim, Darren R. Williams, Da Woon Jung, Jung Eun Lee, Shin Ae Seo, Ji Yeon Park
  • Patent number: 10854215
    Abstract: A residual echo estimator estimates a residual echo of a microphone signal input to a microphone as a reference signal is output through a speaker. The residual echo estimator estimates a magnitude of a residual echo of the reference signal at a current frame by using a magnitude of the linear echo of the reference signal at the current frame and a magnitude of the linear echo of the reference signal at a past frame, and updates weights to be applied to the magnitudes of the linear echo.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: December 1, 2020
    Assignees: Samsung Electronics Co., Ltd., Gwangju Institute of Science and Technology
    Inventors: Seongwoo Kim, Han Young Yim, Dongil Hyun, Jong Won Shin, Hyungchan Song
  • Patent number: 10815275
    Abstract: Antimicrobial peptoids with improved selectivity to bacteria and a use thereof are described. Specifically, the antimicrobial peptoids have high antimicrobial activity and greatly decreased toxicity to animal cells. The antimicrobial peptoids show excellent antimicrobial activity against bacteria and exhibit low cytotoxicity to animal cells due to altered degree of folding in helical structure or altered charge characteristics. Therefore, the antimicrobial peptoids have improved selectivity to bacteria, and thus can be usefully used as antimicrobial compositions.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: October 27, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jiwon Seo, Ho Yeon Nam, Ji Eun Choi
  • Publication number: 20200323468
    Abstract: An apparatus for analyzing an in vivo component is provided. The apparatus for analyzing an in vivo component may include an impedance sensor including a first electrode and a second electrode configured to contact a fluid channel of a fluid to be analyzed. The apparatus may include an impedance measurement device configured to apply a current to the first electrode and the second electrode, measure a voltage between the first electrode and the second electrode based on applying the current, and measure an impedance of the fluid based on the measured voltage. The apparatus may include a processor configured to model the measured impedance using an equivalent circuit; and analyze the in vivo component based on modeling the measured impedance using the equivalent circuit.
    Type: Application
    Filed: January 15, 2020
    Publication date: October 15, 2020
    Applicants: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sung YANG, Kun Sun EOM, Myoung Hoon JUNG, Byung Jun KIM, Alexander ZHBANOV, Seung Yeob LEE, Ye Sung LEE
  • Publication number: 20200313085
    Abstract: A nonvolatile memory device having multi-level resistance and capacitance values is provided. Such a nonvolatile memory device includes: a substrate; a first electrode that is provided on the substrate; a dielectric layer that is provided on the first electrode, has resistance and capacitance changed by a tunneling conduction phenomenon of charges according to an applied voltage, has rectifying characteristics, and includes a dielectric material; an active layer that is provided on the dielectric layer, has resistance and capacitance changed according to an applied voltage, and includes a graphene oxide complex; and a second electrode that is provided on the active layer. In addition, the nonvolatile memory device has multi-level resistance and capacitance values according to an applied voltage.
    Type: Application
    Filed: March 20, 2018
    Publication date: October 1, 2020
    Applicant: Gwangju Institute of Science and Technology
    Inventors: Jae Hyung JANG, Rani ANOOP, Se I OH
  • Patent number: 10750948
    Abstract: The present invention provides a method which can significantly increase the signal-to-noise ratio of an ultrasound-modulated optical signal by overcoming the shallow depth problem of in vivo optical imaging in existing optical imaging by use of a quantum optical phenomenon based on ultraslow light and nondegenerate phase conjugation and which can be applied directly not only to medical optical imaging, but also to medical photodynamic therapy, through slow light amplification of phase conjugate waves.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: August 25, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventor: Byoung Seung Ham
  • Patent number: 10729912
    Abstract: An implantable photovoltaic device. The implantable photovoltaic device includes: at least two solar microcells configured to absorb sunlight; a thin film wire configured to connecting the at least two solar microcells to each other; a film configured to support the solar microcells; an upper encapsulation layer configured to encapsulate an upper side of the solar microcells and shield the solar microcells from the outside; and a lower encapsulation layer configured to encapsulate a lower side of the film and connect to the encapsulation layer. According to the idea of the present invention, it is possible to obtain a photovoltaic device which stably and harmlessly operates in a living body.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: August 4, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jongho Lee, Kwangsun Song, Yong Chul Kim, Jung Hyun Han
  • Patent number: 10732257
    Abstract: The vehicle includes: a plurality of vehicle antennas configured to receive a plurality of signals, respectively, from a remote control device; and a vehicle controller configured to: i) calculate an arrival distance between each of the plurality of vehicle antennas and the remote control device based on an arrival time of the plurality of signals received by the plurality of vehicle antennas, ii) extract an initial arrival pulse signal having a first reference value or higher from among at least one pulse signal contained in each of the plurality of signals, iii) extract at least one valid signal having a maximum value corresponding to a second reference value or higher from among the plurality of signals received by the plurality of vehicle antennas, iv) calculate an arrival distance of an initial arrival pulse signal contained in the at least one valid signal, and v) estimate a position of the remote control device based on the arrival distance.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: August 4, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Gwangju Institute of Science and Technology
    Inventors: Jihye Lee, Sinjung Kim, Jongyoung Lee, Daeyeon Kim, Kangwook Kim
  • Publication number: 20200243104
    Abstract: A residual echo estimator estimates a residual echo of a microphone signal input to a microphone as a reference signal is output through a speaker. The residual echo estimator estimates a magnitude of a residual echo of the reference signal at a current frame by using a magnitude of the linear echo of the reference signal at the current frame and a magnitude of the linear echo of the reference signal at a past frame, and updates weights to be applied to the magnitudes of the linear echo.
    Type: Application
    Filed: August 21, 2019
    Publication date: July 30, 2020
    Applicants: Samsung Electronics Co., Ltd., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seongwoo KIM, Han Young YIM, Dongil HYUN, Jong Won SHIN, Hyungchan SONG
  • Publication number: 20200225325
    Abstract: A light detection and ranging (LiDAR) apparatus and a method of operating the LiDAR apparatus are provided. The LiDAR apparatus includes a light transmitter configured to irradiate a laser pulse towards an object, the laser pulse being generated based on a reference signal; a light receiver configured to receive the laser pulse reflected from the object and configured to obtain a first signal from the received laser pulse; and at least one processor configured to convert the first signal and the reference signal respectively into unipolar signals and configured to detect a flight time of the laser pulse based on a correlation between the converted first signal and the converted reference signal.
    Type: Application
    Filed: August 28, 2019
    Publication date: July 16, 2020
    Applicants: SAMSUNG ELECTRONICS CO., LTD., GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungwoo KIM, Youngjoon JO, Kyihwan PARK
  • Patent number: 10703858
    Abstract: A macromolecular photonic crystal material including an A block and a B block is disclosed. the A block comprises a crystalline polyhedral oligomeric POSS, the macromolecular photonic crystal material represented by the structural formula 1.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: July 7, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae Suk Lee, Chang Geun Chae, Mallela Yadagiri Lakshmi Narasimha Kishore, Myung Jin Kim, In Gyu Bak, Ho Bin Seo, Yong Guen Yu
  • Patent number: 10707079
    Abstract: The present invention relates to a method for forming a layer, to be patterned, of an element by using a fluorinated material, which has orthogonality, and a solvent, the method comprising: a first step of printing with the fluorinated material so as to form, on a surface of a substrate, a mask template provided with an exposure part and a non-exposure part; a second step of coating the exposure part with a material to be patterned; a the third step of lifting-off the non-exposure part with the fluorinated solvent so as to form the layer to be patterned in the exposure part.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: July 7, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Myung Han Yoon, Su Jin Sung
  • Patent number: 10696753
    Abstract: Provided are a method of electrically modifying an electrode surface with dopamine-hyaluronic acid conjugates and technologies to suppress adsorption of harmful biomaterials and organisms by imparting anti-fouling to the electrode surface using the same and to maintain electrical properties of the electrode. More specifically, provided is a technology of coating an electrode surface via a dopamine functional group by electrochemically oxidizing dopamine-conjugated biocompatible polysaccharide polymers around the electrode. This aims to confirm the capability of suppressing organism adhesion depending on whether or not cells are adsorbed after coating the electrode surface, and to identify that electrochemical performance of the electrode is maintained or a slight increase in electrode resistance is kept, even after the electrode coating. The surface modified electrode according to the present invention can be widely used in the field of biomaterials such as bio-electrodes, bio-sensors and cell supports.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: June 30, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae Young Lee, Semin Kim, Yesul Jang
  • Patent number: 10700667
    Abstract: Disclosed are a metal-semiconductor-metal two-dimensional electron gas varactor (MSM-2DEG) and a method of manufacturing the same. There is provided an MSM-2DEG varactor having an asymmetric structure, which includes a first gate formed on a semiconductor layer, and a second gate spaced apart at a predetermined distance from the first gate and formed on the semiconductor layer, wherein the first gate and the second gate are different in shape and gate length.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: June 30, 2020
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jae Hyung Jang, Ji Hyun Hwang