Patents Assigned to Korea Institute of Science and Technology
  • Publication number: 20200287714
    Abstract: This specification discloses a quantum public-key cryptosystem. The quantum public-key cryptosystem may use two rotation operators R{circumflex over (n)}(?) and R{circumflex over (m)}(?) satisfying a cyclic evolution. The two rotation operators R{circumflex over (n)}(?) and R{circumflex over (m)}(?) do not have a commutation relation or an anti-commutation relation with each other. The commutation relation or the anti-commutation relation is established when either of the following conditions is satisfied: ?=2i?, ?=2j?, or {circumflex over (n)}·{circumflex over (m)}=1 (i, j=integer), and ?=(2k+1)?, ?=(2l+1)?, or {circumflex over (n)}·{circumflex over (m)}=0 (k, l=integer).
    Type: Application
    Filed: January 10, 2020
    Publication date: September 10, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Wook HAN, Sung Wook MOON, Yong Su KIM, Sang Yun LEE, Young Wook CHO, Min Sung KANG, Ji Woong CHOI
  • Patent number: 10761025
    Abstract: A method for detecting biomaterial by means of a dye having a linear upconversion fluorescent property is provided. The method includes the steps of: i) preparing a fluorophore having a linear upconversion fluorescent property; ii) reacting the fluorophore and biomaterial to obtain a reaction complex thereof; iii) exciting the reaction complex by means of a light source having a longer wavelength than the maximum light-emitting wavelength of the fluorophore; and iv) detecting and measuring the light-emitting signal having a shorter wavelength than the wavelength of the excited light emitted from the excited reaction complex. A system and a kit for detecting biomaterial using a dye having a linear upconversion fluorescent property are also provided.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: September 1, 2020
    Assignees: BIONANO HEALTH GUARD RESEARCH CENTER, KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sehoon Kim, Bong Hyun Chung, Youngsun Kim, Kyung Mi Park, Young Hun Seo
  • Patent number: 10758512
    Abstract: Provided is a pharmaceutical composition, a health food composition, or a quasi drug composition for preventing, treating, or improving a disease caused by overproduction of dihydrotestosterone, including fucoxanthin or a Phaeodactylum tricornutum extract as an active ingredient.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: September 1, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyungsu Kang, Yongsoo Choi, Cheol-Ho Pan, Sang Min Kim, Kwang-Hyun Cha, Jin-Chul Kim
  • Publication number: 20200274015
    Abstract: Provided is a multi-junction solar cell in which two or more absorption layers having different bandgaps are stacked on one another. The multi-junction solar cell includes a first cell including a first absorption layer, and a second cell electrically connected in series onto the first cell, wherein the second cell includes a second absorption layer having a higher bandgap compared to the first absorption layer, and a plurality of recesses penetrating through the second absorption layer.
    Type: Application
    Filed: March 27, 2019
    Publication date: August 27, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung Hyun Jeong, In Ho Kim, Won Mok Kim, Jong Keuk Park, Hyeong Geun Yu
  • Publication number: 20200274069
    Abstract: The present disclosure relates to a conjugated polymer for a low-temperature process, which is capable of forming a uniform thin film over a large area without a heat treatment process due to superior solubility and crystallinity at low temperature and, thus, allows fabrication of an organic solar cell with high efficiency at low temperature.
    Type: Application
    Filed: August 19, 2019
    Publication date: August 27, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hae Jung SON, Sungmin PARK, Jong Baek PARK, Sohyun PARK
  • Publication number: 20200274007
    Abstract: Provided is a color-controllable thin-film solar cell including a transparent electrode layer disposed on an absorption layer, and color structure patterns disposed on at least parts of the transparent electrode layer.
    Type: Application
    Filed: March 27, 2019
    Publication date: August 27, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jeung Hyun JEONG, Kyeong Seok Lee, Doh Kwon Lee, Won Mok Kim, Hyeong Geun Yu
  • Patent number: 10751359
    Abstract: This invention relates to a nucleic acid aptamer specifically binding to avian influenza virus subtype H5 and a method of detecting avian influenza virus subtype H5 using the same, and more particularly to a method of detecting avian influenza virus subtype H5, which is able to rapidly check the presence and concentration of avian influenza virus subtype H5 using a nucleic acid aptamer specifically binding to hemagglutinin, which is a surface protein of avian influenza virus subtype H5.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 25, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Byoung-Chan Kim, Sang-Kyung Kim, Seok Lee, Chang-Seon Song, Sang-Won Lee, Un-Jung Kim
  • Patent number: 10756889
    Abstract: A certificated quantum cryptography method is provided. The method is performed by a quantum cryptography server connected to a first communication device and a second communication device which perform quantum key distribution. The method includes step of receiving a first quantum public key generated by the first communication device and a second quantum public key generated by the second communication device and registering measurement outcomes of the first and second quantum public keys. When first basis information and second basis information acquired by performing quantum key distribution between the first and second communication devices are signed and exchanged, the method includes the step of receiving a third quantum public key and a fourth quantum public key.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: August 25, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Sangwook Han, Sungwook Moon, Yongsu Kim, Sangyun Lee, Youngwook Cho, Minsung Kang
  • 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: 10751360
    Abstract: Disclosed is a pharmaceutical composition for preventing or treating nicotine addiction or withdrawal symptoms. The pharmaceutical composition includes miR-137 as an active ingredient. Overexpression of miR-137 in an animal model having nicotine addiction or withdrawal symptoms results in relief, prevention or amelioration of the symptoms. Therefore, the use of miR-137 contributes to the prevention or treatment of nicotine addiction or withdrawal symptoms and is expected to be useful for developing relevant therapeutic agents.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: August 25, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Heh-In Im, Byung Sun Kim
  • Patent number: 10746990
    Abstract: A multi-focal augmented reality device may include a multi-focal display that provides a plurality of images output from a plurality of image-providing devices and located at different depths and an augmented reality image synthesis device that synthesizes the plurality of images provided by the multi-focal display and an external image.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: August 18, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Soongi Park, Minkoo Kang, Sungkyu Kim
  • Patent number: 10746847
    Abstract: The present invention relates to wireless localization method and apparatus of high accuracy, and measures strength of at least one signal that is transmitted from at least one fixed node, estimates a relative position of a moving node, generates a change pattern of at least one signal strength according to relative changes in positions of the moving node over a plurality of time points from at least one signal strength and the relative position of the moving node, and estimates an absolute position of the moving node, based on a comparison between the change pattern of the at least one signal strength and a map of a distribution pattern shape of signal strength in a region where the moving node is located. Accordingly, it is possible to accurately estimate a position of a moving node using a radio signal which not only accurately estimates the position of the moving node even in a change of wireless environment but also has almost no change in signal strength over a wide region.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: August 18, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Taikjin Lee, Youngmin Jhon, Jaehun Kim, Boseon Yu, Beomju Shin, Jaewon Bang
  • Patent number: 10745532
    Abstract: The present disclosure relates to a generalized method for producing a vertically oriented block copolymer film, a block copolymer film with controlled orientation obtained thereby, and a method for producing a self-assembled pattern. According to the present disclosure, it is possible to form a crosslinked layer, which is mechanically stable and undergoes no chemical change, by subjecting the block copolymer surface to plasma treatment using a filter. It is also possible to obtain a vertically oriented block copolymer film by annealing the block copolymer film having such a crosslinked layer. The method for producing a vertically oriented block copolymer film according to the present disclosure is advantageous in that it can be applied for general purpose regardless of the chemical structure, type and morphology of a block copolymer, and the method can be applied generally to the conventional directed self assembly process.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: August 18, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Jeong Gon Son, Jinwoo Oh, Sang-Soo Lee, Heesuk Kim, Min Park, Jong Hyuk Park, Seungjun Chung, Tae Ann Kim
  • Patent number: 10745306
    Abstract: Provided is an aquifer storage and recovery system, in which microbes extracted from an underground aquifer are involved in an assimilable organic carbon (AOC) removal mechanism and applied to an aerobic reactor, and a predetermined portion of assimilable organic carbon in raw water is removed through the aerobic reactor.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: August 18, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong Pil Jeong, Jae Woo Choi, Kyungjin Cho, Hien Thi Nguyen, Youngjae Kim, Am Jang, Seunghak Lee, Seockheon Lee
  • Patent number: 10739301
    Abstract: Provided is a field-effect transistor that can reduce noise, be produced by a simplified manufacturing method, and also have a plurality of active patterns and gate patterns designed to be combinable according to a detection purpose. The field-effect transistor includes a lower silicon layer and a buried oxide layer disposed on the lower silicon layer; an active pattern disposed on the buried oxide layer and including a channel region, a source region, and a drain region; a gate pattern disposed on the active pattern to at least partially overlap the active pattern; a source electrode disposed in direct contact with the source region on the active pattern, and a drain electrode disposed in direct contact with the drain region on the active pattern; and a gate insulating film disposed between the active pattern and the gate pattern.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: August 11, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kwan Hyi Lee, Minhong Jeun, Seok Lee, Sang Kyung Kim, Sungwook Park
  • Patent number: 10739666
    Abstract: Disclosed is a shielding device, which includes: a casing having an open portion; a deformable unit installed at the casing and configured to be deformed in one direction at a predetermined temperature; a power transmission unit connected to the deformable unit to transmit a power generated by the deformation of the deformable unit; and a shielding unit installed at the casing and connected to the power transmission unit to receive the power from the power transmission unit, the shielding unit being configured to open or close the open portion, wherein the deformable unit is deformed at a first temperature to be expanded or compressed, and the shielding unit closes the open portion by means of the deformation of the deformable unit.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: August 11, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Donghyun Hwang, Doik Kim, Junsik Kim, Youngsu Cha
  • Publication number: 20200248141
    Abstract: Provided are a composition and a kit for reprogramming cancer associated fibroblasts (CAFs) into macrophages, and a method of using the same. According to a method of reprogramming CAFs according to an aspect, macrophages may be prepared with a high yield in a short period of time, and the tumor microenvironment may be suppressed and macrophages produced by reprogramming CAF may elimininate cancer cells. Therefore, the macrophages may be usefully applied as an anticancer agent or an anticancer adjuvant.
    Type: Application
    Filed: October 15, 2019
    Publication date: August 6, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: So Yeon KIM, HyeRan GWAK, Eun Gyeong YANG
  • Patent number: 10731877
    Abstract: A desiccant cooling system includes a desiccant cooling device partitioned into a desiccant cooling path and a regeneration path and including a desiccant rotor having one side on the desiccant cooling path and other side on the regeneration path and a cooler configured to cool high-temperature low-humidity air which has been dehumidified while passing through the one side of the desiccant rotor; and a vapor compression cooling device including a compressor configured to compress a refrigerant, a condenser configured to be cooled by the air cooled by passing through the cooler, and condenses the refrigerant compressed by the compressor, an expansion valve configured to expand the refrigerant condensed by the condenser, and an evaporator configured to evaporate the refrigerant expanded by the expansion valve and transfer the evaporated refrigerant to the compressor.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: August 4, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventor: Dae Young Lee
  • Patent number: 10736250
    Abstract: A method of manufacturing a transparent flexible silver nanowire-based conducting film and a transparent flexible silver nanowire-based conducting film are provided. The method includes coating conductive nanowires, which shield and absorb electromagnetic interference, on a flexible substrate, sintering the conductive nanowires using a wet sintering process, and coating a polymer layer in which graphene flakes are dispersed on the flexible substrate with the conductive nanowires formed thereon.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: August 4, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Woo Kim, Jong Han Choi
  • Patent number: 10730753
    Abstract: The present invention relates to an eco-friendly method for preparing a porous silicon carbide structure, which is capable of preparing a porous silicon carbide structure having meso- or macro-sized pores without using a harmful phenolic resin as a carbon source.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: August 4, 2020
    Assignee: Korea Institute of Science and Technology
    Inventors: Sang Whan Park, Mi Rae Youm, Sung Il Yun