Abstract: The present disclosure relates to a conjugated polymer and a perovskite solar cell including the same, more particularly to a conjugated polymer capable of improving moisture stability and thermal stability. When the conjugated polymer according to the present disclosure is used in an organic electronic device, superior efficiency can be maintained for a long period of time.
Type:
Application
Filed:
April 6, 2020
Publication date:
April 29, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Hae Jung SON, Phillip LEE, Sungmin PARK, ByungSoo KANG
Abstract: A logic function device according to an embodiment of the present invention includes one or more function reconfiguring units having magnetization in one direction set by spin torque caused due to an function reconfiguring current, and an output terminal formed at an end thereof; and one or more input units formed on the function reconfiguring unit and having magnetization in the one direction set by spin torque caused due to an input current, wherein an output voltage of the output terminal is determined on the basis of whether a magnetization direction of the function reconfiguring unit and a magnetization direction of the input unit are parallel or anti-parallel.
Type:
Application
Filed:
January 28, 2020
Publication date:
April 29, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Kyoung Whan Kim, Dong Soo Han, Byoung Chul Min, Seok Min Hong, Hyun Cheol Koo, Hyung Jun Kim, Tae Eon Park, Ouk Jae Lee
Abstract: A nerve cover for covering a nerve within a living body tissue to protect the nerve includes a base of a flat plate shape, and a pair of covers protruding upward the base to form a hole for receiving a nerve, with one end attached to the base and the other end spaced apart from the one end, wherein when the base is bent in an arch shape when viewed from a side, a spacing between the pair of covers is expanded. In addition, an apparatus for insertion of an electrode structure includes a nerve cover fixing part which fixes the nerve cover with the base being bent, and an electrode structure fixing part in which the electrode structure is mounted, and which linearly moves the mounted electrode structure in an insertion direction to insert the electrode structure into the nerve surrounded by the nerve cover.
Type:
Application
Filed:
October 24, 2019
Publication date:
April 29, 2021
Applicants:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
Inventors:
Sehyuk YIM, Donghyun Hwang, Yong Seok Ihn, Keehoon Kim, Sang Rok Oh, Jinwoo Jeong
Abstract: A physically unclonable function (PUF) device includes a memory cell array including a plurality of memory cells, a selecting circuit configured to select one or more memory cells among the plurality of memory cells in response to a challenge, and a sense amplifier and quantizer configured to generate a quantize signal from the selected memory cell. The number of quantization sections for generating the quantize signal may be different from the number of resistance state distributions generated from the selected memory cell. One or more quantization sections may exist in one resistance state distribution section.
Type:
Grant
Filed:
May 28, 2019
Date of Patent:
April 27, 2021
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: The flash memory system according to the embodiment of the present invention is characterized by programming a selected page in a quantization signal generating operation, providing a reference read voltage to a selected word line connected to the selected page, A flash memory for generating a flash memory; And a memory controller for receiving a quantized signal from the flash memory and generating a response using the quantized signal, wherein the memory controller receives an challenge from a host and the flash memory performs the quantized signal generation.
Type:
Grant
Filed:
May 29, 2019
Date of Patent:
April 27, 2021
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: A system for balance control of a humanoid includes a control input generation unit which determines Zero Momentum Position (ZMP) of the humanoid with respect to ground, and a control output generation unit which determines Center of Mass (CoM) position and velocity of the humanoid, wherein the control input generation unit and the control output generation unit determine the ZMP and the CoM position and velocity, respectively, by applying a discrete-time dynamics equation sampled by applying a non-pathological sampling frequency.
Type:
Grant
Filed:
October 19, 2018
Date of Patent:
April 27, 2021
Assignee:
Korea Institute of Science and Technology
Abstract: Provided is a tactile transmission device, which includes a base unit forming one surface of the tactile transmission device, a tip-tilt elastic member stacked on the base unit and configured to transmit a tactile feel to a finger of a user in a first direction oriented upward from a bottom surface of the finger and a second direction intersecting the first direction at a predetermined angle, and a cover disposed at an upper side of the tip-tilt elastic member to form another surface of the tactile transmission device.
Type:
Grant
Filed:
November 26, 2018
Date of Patent:
April 27, 2021
Assignees:
Korea Institute of Science and Technology, Center of Human-Centered Interaction For Coexistence
Inventors:
Donghyun Hwang, Keehoon Kim, Byeongkyu Lim, Bum-Jae You
Abstract: According to one aspect of the present invention, a non-metal member having a colored surface is provided. The non-metal member having a colored surface includes a non-metal substrate; a metal coating layer disposed on the non-metal substrate; a light-transmissive dielectric layer disposed on the metal coating layer; and a color pattern structure disposed on the light-transmissive dielectric layer.
Type:
Application
Filed:
September 11, 2020
Publication date:
April 22, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Ji Young Byun, Kwang-deok Choi, In Uk Baek
Abstract: The present disclosure relates to a polymer electrolyte membrane for medium and high temperature, a preparation method thereof and a high-temperature polymer electrolyte membrane fuel cell including the same, more particularly to a technology of preparing a composite membrane including an inorganic phosphate nanofiber incorporated into a phosphoric acid-doped polybenzimidazole (PBI) polymer membrane by adding an inorganic precursor capable of forming a nanofiber in a phosphoric acid solution when preparing phosphoric acid-doped polybenzimidazole and using the same as a high-temperature polymer electrolyte membrane which is thermally stable even at high temperatures of 200-300° C. without degradation of phosphoric acid and has high ion conductivity.
Type:
Application
Filed:
April 27, 2020
Publication date:
April 22, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
So Young LEE, Seung Ju LEE, Min Jae LEE, Hyun Seo PARK, Jong Hyun JANG, Hyoung-Juhn KIM, Suk Woo NAM, Young Suk JO, Yeong Cheon KIM
Abstract: The present disclosure provides an RSS (Received Signal Strength) signal correction method for performing location measurement by utilizing information among a plurality of nodes, and the RSS signal correction method estimates a variable of an RSS signal model based on at least one of location information of a fixed node, location information of an unknown node and measurement noise information of the unknown node.
Type:
Application
Filed:
April 30, 2020
Publication date:
April 15, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Abstract: The present disclosure relates to technology that controls a robot based on brain-computer interface, and a robot control method acquires a first biosignal indicating an intention to start the operation of the robot from a user to operate the robot, provides the user with visual stimulation of differently set signal cycles corresponding to a plurality of objects for which the robot executes motions, acquires a second biosignal evoked by the visual stimulation from the user to identify an object selected by the user, and acquires a third biosignal corresponding to a motion for the identified object from the user to induce the robot to execute the corresponding motion.
Type:
Application
Filed:
November 14, 2019
Publication date:
April 15, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Laehyun KIM, Da-Hye KIM, Seul Kee KIM, Ju-Suk YUN
Abstract: A cell patterning material, a method of preparing the cell patterning material, a cell patterning method using the cell patterning material, and a biosensor including patterned cells obtained by using the cell patterning method are provided. According to the present disclosure, cells may be conveniently and efficiently patterned and the time for applying external stimulation for patterning may be controlled. In addition, the patterned cells may have an excellent proliferation rate and excellent differentiation efficiency, and may be re-patterned in a different direction, and High-throughput screening using the patterned cells is possible.
Type:
Grant
Filed:
August 24, 2016
Date of Patent:
April 13, 2021
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Hojeong Jeon, Indong Jun, Kangwon Lee, Hyung-Seop Han, Jimin Park, Myoung-Ryul Ok, Yu Chan Kim, Hyun Kwang Seok
Abstract: Disclosed is a liquid crystalline epoxy compound wherein an epoxy group is positioned at a side chain of the longer direction of a mesogen group and each of the mesogen group and the epoxy group is connected to the center of the molecular structure through a flexible linkage. Since the liquid crystalline epoxy compound includes an epoxy group positioned at a side chain of the longer direction of a mesogen group and each of the mesogen group and the epoxy group is connected to the center of the molecular structure through a flexible linkage, the interaction between the mesogens in a cured resin product occurs significantly without weakening even after curing, thereby improving the heat conductivity of the resin compound through the active heat transfer between the mesogens.
Type:
Grant
Filed:
January 9, 2018
Date of Patent:
April 13, 2021
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Munju Goh, Hyeonuk Yeo, Nam Ho You, Se Gyu Jang, Seokhoon Ahn, Young Soo Kim
Abstract: The present disclosure relates to an IrO2 electrodeposited porous titanium composite layer of a polymer electrolyte membrane water electrolysis apparatus serving as both a diffusion layer and an oxygen electrode, the apparatus including: a porous titanium (Ti) layer; and an electrodeposited iridium oxide (IrO2) layer on the porous Ti layer. The IrO2 layer may be uniformly deposited on a porous Ti layer through an electrolysis process, and the electrodeposited IrO2 layer may play multiple roles as not only a catalyst layer toward oxygen evolution reaction (OER) on the surface of the Ti layer, but also a corrosion-protection layer which prevents an inner Ti layer from corrosion.
Type:
Grant
Filed:
November 21, 2018
Date of Patent:
April 13, 2021
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jong Hyun Jang, Seunghoe Choe, Youngseung Na, Hye Jin Lee, Ahyoun Lim, Hyoung-Juhn Kim, Dirk Henkensmeier, Sung Jong Yoo, Jin Young Kim, So Young Lee, Hyun Seo Park
Abstract: The present disclosure relates to a Clostridium sp. JS66 strain producing metabolites having 4 to 6 carbon atoms in a high yield. The strain produces metabolites having 6 carbon atoms in a significantly high yield while reducing the production of acetic acid and ethanol as by-products.
Type:
Grant
Filed:
January 22, 2019
Date of Patent:
April 13, 2021
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Youngsoon Um, Joongsuk Kim, Sun-Mi Lee, Gyeongtaek Gong
Abstract: A method for producing tetraalkoxysilane includes reacting a compound represented by Chemical Formula 1 below with an alkali metal at a molar ratio ranging from 1.0:1.0 to 1.0:1.1 and in the absence of a solvent to produce a basic catalyst represented by Chemical Formula 2 below; and mixing the basic catalyst represented by Chemical Formula 2, silicon metal, and an alcohol represented by Chemical Formula 3 below to produce tetraalkoxysilane: Chemical Formula 1 R1O(CHR2CH2O)n—H, Chemical Formula 2 R1O(CHR2CH2O)n-M, and Chemical Formula 3 R3OH, where M is alkali metal, R1 represents a C1-C5 linear hydrocarbon group or a C3-C5 branched hydrocarbon group, R2 represents H or a C1-C3 linear hydrocarbon group, R3 represents a C1-C2 alkyl group, and n is an integer of 2-3. Thus, it is possible to increase the proportion of the catalyst in the process, and to minimize production of impurities caused by solvent decomposition.
Type:
Grant
Filed:
April 29, 2020
Date of Patent:
April 6, 2021
Assignee:
Korea Institute of Science and Technology
Abstract: A method for surface planarization of an object using a light source of a specific wavelength according to an embodiment includes: providing an object in a main chamber; injecting an etching gas into the main chamber; inputting the light source of a specific wavelength onto a surface of the object; and controlling a temperature of the object. According to the method, it is possible to minimize the side effects such as scratches or contamination of the sample that occur in a conventional chemical-mechanical planarization process. In addition, it is possible to allow precise planarization in nanometers (nm) and simultaneously perform planarization to a side surface of a device as well as a large-sized surface, thereby reducing cost and time required for the planarization process. Moreover, since the surface roughness and the electrical conductivity are improved, it is possible to increase the efficiency and output of the LED device.
Type:
Grant
Filed:
February 8, 2019
Date of Patent:
March 30, 2021
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Gumin Kang, Il Ki Han, S. Joon Kwon, Young-Hwan Kim, Hyungduk Ko, Chun Keun Kim
Abstract: An air conditioning apparatus is provided. The air conditioning apparatus includes: a filter configured to have a first conductor layer, an insulating layer having a thickness in the range of 5 nm to 1000 nm, and a second conductor layer which are sequentially stacked, and include a plurality of holes penetrating through the first conductor layer, the insulating layer, and the second conductor layer; a fan assembly configured to suck air from the outside and provide the sucked air to the filter; a power supply device configured to provide alternating current power between the first conductor layer and the second conductor layer; and a processor configured to control the power supply device to selectively vary a frequency or a voltage magnitude of the alternating current power provided to the filter.
Type:
Application
Filed:
September 17, 2020
Publication date:
March 25, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Yong-Sang RYU, Eui-Sang YU, Taehyun KIM, Sang Moon KIM, Jongsu LEE
Abstract: A method of manufacturing a perovskite multilayered structure includes providing a substrate, forming a first perovskite layer on the substrate, forming a second perovskite layer by a reaction between the halogen compounds and at least one of the metal halides, the metal oxides, or the metal sulfides.
Type:
Application
Filed:
May 26, 2020
Publication date:
March 25, 2021
Applicant:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
In Soo Kim, Young Hwan Kim, Kwan II Lee, Chun Keun Kim, Byung Hyun Nam, Hye Jun Kim
Abstract: Disclosed herein are a calcium salts-supported metal catalyst, a method for preparing the same, and a method for the hydrodeoxygenation reaction of oxygenates using the same. The catalyst, in which a metal catalyst is supported on a carrier of a calcium salt, for example, calcium carbonate, has the effect of increasing the efficiency of hydrodeoxygenation reaction of oxygenates.
Type:
Grant
Filed:
March 5, 2019
Date of Patent:
March 23, 2021
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventors:
Jeong-Myeong Ha, Adid Adep Dwiatmoko, Jae Wook Choi, Dong Jin Suh, Jungho Jae, Young Hyun Yoon, Kwang Ho Kim