公开(公告)号：US10704792B2

公开(公告)日：2020-07-07

申请号：US15841932

申请日：2017-12-14

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dae Young Lee

IPC: F24F3/14 ,  F24F5/00

Abstract: Provided is an adsorptive hybrid desiccant cooling system, including a desiccant cooler comprising a housing including a regeneration passage and a dehumidification passage, a desiccant rotor mounted on a partition wall dividing the regeneration passage and the dehumidification passage from each other, a regeneration preheater installed upstream of the desiccant rotor in the dehumidification passage, and a cooler installed downstream of the desiccant rotor in the dehumidification passage; and an adsorptive cooler comprising an adsorber including a first sub-adsorber and a second sub-adsorber configured to adsorb a refrigerant at an adsorption temperature and desorb the refrigerant at a regeneration temperature, a condenser configured to condense the refrigerant, and an evaporator configured to evaporate the refrigerant, wherein the adsorber is connected to each of the external heat source and the regeneration preheater, and the regeneration preheater is heated by adsorption heat generated in the adsorber.

公开(公告)号：US20200212456A1

公开(公告)日：2020-07-02

申请号：US16556007

申请日：2019-08-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Jong Ho LEE ,  Kyung Joong YOON ,  Sang Hyeok LEE ,  Dong Hwan KIM ,  Jong Sup HONG ,  Yong Gyun BAE

IPC: H01M8/0267 ,  H01M8/0263 ,  H01M8/04014 ,  H01M8/2485

Abstract: Disclosed is a fuel cell with improved thermal distribution in a stack including two more unit cells stacked therein. The fuel cell includes a stack including the two more unit cells and separators each having manifolds formed through four sides thereof, a first chamber having an internal space so as to receive air and fuel from the outside and to transfer the air and fuel to a second chamber and so as to receive the air and fuel discharged from the stack and to discharge the air and fuel to the outside, a second chamber having an internal space so as to receive the air and fuel from the first chamber and to transfer the air and fuel to the stack, and a connecting part connecting the first chamber to the second chamber so as to allow the air and fuel to flow to the second chamber from the first chamber.

公开(公告)号：US20200207649A1

公开(公告)日：2020-07-02

申请号：US16390007

申请日：2019-04-22

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seong Pil JEONG ,  Jae Woo CHOI ,  Kyungjin CHO ,  Hien Thi NGUYEN ,  Youngjae KIM ,  Am JANG ,  Seunghak LEE ,  Seockheon LEE

IPC: C02F3/04 ,  E03B3/06 ,  E03B3/34 ,  C02F1/00 ,  C02F3/34

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.

公开(公告)号：US10697073B2

公开(公告)日：2020-06-30

申请号：US15608082

申请日：2017-05-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Wook Seong Lee ,  Young-Jin Ko ,  Young Joon Baik ,  Jong-Keuk Park ,  Kyeong Seok Lee ,  Inho Kim ,  Doo Seok Jeong

IPC: C25B11/04 ,  C23C16/56 ,  C23C16/503 ,  C23C16/32 ,  C25B11/02 ,  B82Y30/00 ,  B82Y40/00

Abstract: A method for manufacturing an electrode for hydrogen production using a tungsten carbide nanoflake may include: forming a tungsten carbide nanoflake on a nanocrystalline diamond film by means of a chemical vapor deposition process in which hydrogen plasma is applied; and increasing activity of the tungsten carbide nanoflake to a hydrogen evolution reaction by removing an oxide layer or a graphene layer from a surface of the tungsten carbide nanoflake. Since an oxide layer and/or a graphene layer of a surface of tungsten carbide is removed by means of cyclic cleaning after tungsten carbide is formed, hydrogen evolution reaction (HER) activity of the tungsten carbide may be increased, thereby enhancing utilization as a catalyst electrode.

公开(公告)号：US10689736B2

公开(公告)日：2020-06-23

申请号：US15139231

申请日：2016-04-26

Applicant: HYUNDAI MOTOR COMPANY ,  HYUNDAI STEEL COMPANY ,  Korea Institute of Science and Technology

Inventor： Sung Chul Cha ,  Bong Lae Jo ,  Sang Min Song ,  Jae Hyeok Shim

IPC: C22C37/00 ,  C22C38/54 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  F01L1/46 ,  C21D9/02 ,  F16F1/02

Abstract: An ultra-high-strength spring steel for an engine valve spring steel comprises, by weight: 0.5-0.7% of carbon (C), 1.3-2.3% of silicon (Si), 0.6-1.2% of manganese (Mn), 0.6-1.2% of chrome (Cr), 0.1-0.5% of molybdenum (Mo), 0.05-0.8% of nickel (Ni), 0.05-0.5% of vanadium (V), 0.05-0.5% of niobium (Nb), 0.05-0.3% of titanium (Ti), 0.001-0.01% of boron (B), 0.01-0.52% of tungsten (W), 0.3% or less (0% exclusive) of copper (Cu), 0.3% or less (0% exclusive) of aluminum (Al), 0.03% or less (0% exclusive) of nitrogen (N), 0.003% or less (0% exclusive) of oxygen (O), and a remainder of Fe and other inevitable impurities, based on 100% by weight of the ultra-high-strength spring steel.

公开(公告)号：US10686534B2

公开(公告)日：2020-06-16

申请号：US16376672

申请日：2019-04-05

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jaehoon Han ,  Sanghyeon Kim ,  Hyunsu Ju ,  Jin-Dong Song

IPC: H04B10/80 ,  H04B10/50 ,  H04B10/66

Abstract: A method for optical interconnection between semiconductor chips according to an embodiment include converting an electrical signal to an optical signal, transmitting the optical signal to a second substrate disposed above or below a first substrate using an optical transmitter provided on the first substrate, receiving the optical signal using an optical detector provided on the second substrate, and converting the received optical signal to an electrical signal. Accordingly, using a mid-infrared wavelength range of light that is transparent to semiconductor materials such as silicon and next-generation high-mobility materials, it is possible to enable interconnection between stacked semiconductor chips without using metal wiring. Using optical interconnection, it is possible to significantly reduce the bandwidth and power consumption, and overcome the limitations of TSV technology, and it is possible to extend the photonics technology and platform established in the existing Si Photonics, thereby reducing the cost required for design.

公开(公告)号：US10671169B2

公开(公告)日：2020-06-02

申请号：US16177789

申请日：2018-11-01

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jaeyoung Park ,  Bukun Son

IPC: G06F3/01

Abstract: A tactile feedback generating apparatus, which applies a tactile feedback to a hand of a user according to an interaction with a virtual object in a virtual space, includes a finger tactile feedback device configured to provide a tactile feedback to a finger, and a palm tactile feedback device configured to provide a pressurized tactile feedback to a palm, wherein the palm tactile feedback device includes at least one pressurizing module disposed at the palm, and wherein the at least one pressurizing module converts a rotational operation into a linear movement to pressurize or release the palm.

公开(公告)号：US10663757B2

公开(公告)日：2020-05-26

申请号：US16174015

申请日：2018-10-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sungkyu Kim ,  Kihyuk Yoon

IPC: G02B27/22 ,  G02B30/27

Abstract: Provided is an autostereoscopic three-dimensional image display apparatus. The autostereoscopic three-dimensional image display apparatus includes a display panel including an array of a plurality of sub-pixels, and an optical plate or a line light source, which is spaced a predetermined interval from the display panel at a predetermined inclination angle, wherein an inclination angle of the optical plate or the line light source with respect to a vertical direction of the display panel is determined by an equation.

公开(公告)号：US20200155997A1

公开(公告)日：2020-05-21

申请号：US16454566

申请日：2019-06-27

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyun Joo LEE ,  Ung LEE ,  Hong Gon KIM ,  Shinhye CHO ,  He Won LEE

IPC: B01D53/14 ,  B01D53/50 ,  B01D53/78 ,  C07D487/08 ,  C07D241/04 ,  C07C215/40

Abstract: The present disclosure relates to a hydroxyl group-containing amine-based sulfur dioxide and sulfurous absorbent, and a method for preparing the same. The absorbent uses an ionic liquid in the form of a salt including a diamine compound substituted with a hydroxyl group, and can be used as an absorbent capable of removing not only sulfur dioxide (SO2) but also sulfurous acid (H2SO3) formed by combination of sulfur dioxide with water.

公开(公告)号：US10653732B2

公开(公告)日：2020-05-19

申请号：US15935634

申请日：2018-03-26

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jungyeob Ham ,  Bong Chul Chung ,  Taejung Kim ,  Pilju Choi ,  Ki Sung Kang ,  Buyng Su Hwang ,  Kyu Sun Kim

IPC: A61K36/062 ,  A61P3/10 ,  A61K31/122 ,  A23L33/10 ,  A61K31/05 ,  C07C35/44 ,  C07C39/205 ,  C07C39/14

Abstract: Provided are a composition for stimulating insulin secretion from cells, the composition including a Hypoxylon truncatum extract or an active ingredient thereof, and a method of stimulating insulin secretion from cells.