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公开(公告)号：US11535693B2
公开(公告)日：2022-12-27
申请号：US17101812
申请日：2020-11-23
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Sung Woo Hong , Sung Koo Lee , Pyong Hwa Hong , Jin Sil Kim , Gyeong Min Moon , Kiseung Kim
IPC: C08G18/12 , C08L75/12 , C08G18/32 , C08G18/62 , C08G18/38 , C09D175/04 , C08G18/65 , C08G18/75 , C08G18/10 , C08G18/64 , C08G18/79
Abstract: Disclosed is a composition for forming a polyurethane film with improved reaction stability, comprising an OH group-containing polymer; an isocyanate-based compound as a curing agent; and an alicyclic urea diol compound having two urea groups and an OH group at two terminals, and a polyurethane film with improved self-healable property from tear, derived from the composition.
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公开(公告)号：US11512100B2
公开(公告)日：2022-11-29
申请号：US16918311
申请日：2020-07-01
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Yun Ju Kim , Hyun Aee Chun , Su Jin Park , Sook Yeon Park
IPC: C07D301/02 , C07F7/08 , B01J31/02
Abstract: Provided is a method for preparing an epoxy compound having an alkoxysilyl group effectively by using a mild catalyst as well as an aromatic alcohol ring-opening agent. The preparation method for an epoxy compound having an alkoxysilyl group includes: performing a ring opening step by reacting an epoxy compound having an epoxide group, which is a starting material, with an aromatic alcohol ring-opening agent in the presence of a phosphine-based catalyst and an optional solvent so as to obtain an intermediate having a partially ring-opened epoxide group; and performing an alkoxysilylation step by reacting the intermediate having a partially ring-opened epoxide with isocyanate alkoxysilane.
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公开(公告)号：US11413182B2
公开(公告)日：2022-08-16
申请号：US15556423
申请日：2016-03-08
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Bum Mo Ahn
Abstract: Provided is a cervical brace. The cervical brace according to the present invention may include an upper support that supports and covers a jaw of a wearer, a lower support supported by being pressed against shoulders around the neck of the wearer, a rear support that is positioned behind the upper support and the lower support and supports the rear of the wearer's neck, and a height adjuster including a body installed at one side surface of the upper support, a connecting member formed to extend from one surface of the lower support toward the body, and a rotating member that is installed at one side of the body such that the connecting member penetrates and rotates about the connecting member in both directions, wherein the body of the height adjuster moves upward and downward along the connecting member according to a rotating direction of the rotating member and thus the upper support moves upward and downward with respect to the lower support.
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公开(公告)号：US20220233992A1
公开(公告)日：2022-07-28
申请号：US17616523
申请日：2020-06-22
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Hyo Soo LEE , Hai Joong LEE , Hyung Won SHIN , Hye Jin LEE
Abstract: According to an embodiment of the present invention, in order to perform fine particle agglomeration by outputting a low frequency sound wave and then remove fine particles, there is provided a method for fine particle agglomeration, the method including: an initial fine particle measuring step of generating fine particle measurement data including a pollution level of fine particles in a purification region and outputting the data to a sound source converting unit, by a fine particle measuring unit; a low frequency and sound pressure data extracting step of extracting a low frequency and sound pressure of a low frequency sound source stored in a storage to be used for agglomeration of fine particles, based on the fine particle measurement data, by the sound source converting unit; a sound source converting step of converting an output sound source into the low frequency sound source such that the low frequency sound source has the extracted low frequency and sound pressure data, by the sound source converting unit; and a fine particle agglomeration performing step of causing fine particles to agglomerate by receiving the low frequency sound source and outputting the low frequency sound source as a low frequency sound wave for agglomeration of fine particles, by a low frequency sound wave generating unit.
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公开(公告)号：US20220163618A1
公开(公告)日：2022-05-26
申请号：US17434758
申请日：2019-04-18
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Ho-jae LEE
Abstract: The present invention relates to a spatial coordinate positioning system, particularly to a spatial coordinate positioning system which is capable of measuring a position of spatial positioning target in high-precision by calculating spatial coordinates of assistant point stations at a predetermined interval on the basis of a coordinate of a ground base point station and distance information between the assistant point stations in a space where the plurality of assistant point stations are installed of which coordinates were unknown.
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Patent Agency Ranking
公开(公告)号：US11340013B2
公开(公告)日：2022-05-24
申请号：US16233719
申请日：2018-12-27
Inventor： Jang-ik Park , Ta Kwan Woo , Taehee Kang , Heeseung Na , Hweeung Kwon , Gaehyun Nam , Young Cheol Lee , Dong-Ha Lim
Abstract: Provided are an apparatus and method for liquefying natural gas. The apparatus for liquefying natural gas includes a gas compressor configured to receive and compress the natural gas from a natural gas feed stream, a heat exchanging unit configured to cool a high-pressure natural gas passing through the gas compressor through heat exchange, an expansion valve configured to expand the cooled natural gas passing through the heat exchanging unit, a hold-up drum configured to phase-separate a gas-liquid mixture produced by passing through the expansion valve and divide the gas-liquid mixture into a liquefied natural gas and a cryogenic recycle gas having nitrogen content greater than that of the liquefied natural gas so as to discharge the liquefied natural gas and the cryogenic recycle gas, and a bypass line configured to provide the recycle gas discharged from the hold-up drum to the heat exchanging unit.
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公开(公告)号：US11333349B2
公开(公告)日：2022-05-17
申请号：US16401465
申请日：2019-05-02
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY , KOREA INSTITUTE OF ENERGY RESEARCH , KOREA INSTITUTE OF MACHINERY & MATERIALS
Inventor： Uen Do Lee , Byeong Ryeol Bang , Young Doo Kim , Soo Hwa Jeong , Chang Won Yang , Jae Goo Lee , Tae Young Mun , Myung Won Seo , Ji Hong Moon , Hyun Seol Park , Joon Mok Shim , Young Cheol Park , Do Won Shun , Jong Ho Moon , Dal Hee Bae , Sung Ho Jo , Yun Tae Hwang , Sang In Keel , Jin Han Yun , ChungKyu Lee , Pil Woo Heo
Abstract: Disclosed herein are a fluid sand falling type circulating fluidized bed boiler with a plurality of risers for preventing erosion and corrosion of water tubes and increasing combustion efficiency, and a method of operating the same. The fluid sand falling type circulating fluidized bed boiler with a plurality of risers includes a boiler section into which fuel and oxidizer are injected, a riser section connected to the boiler section so that the fuel and fluid sand supplied from the boiler section are introduced from the bottom of the riser section and flow up, and a relay section provided on the boiler section to supply the fluid sand having passed through the riser section to the boiler section, wherein the fuel is injected from the top of the boiler section and burned while flowing down therein.
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公开(公告)号：US20220074427A1
公开(公告)日：2022-03-10
申请号：US17466755
申请日：2021-09-03
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Jin Hyuk KIM , Sung KIM , Sang Bum MA
Abstract: The present disclosure relates to a two-vane pump for wastewater and a design method of a two-vane pump for wastewater using machine learning, and more particularly, a design method of a two-vane pump using machine learning capable of having efficiency of a target head and performing optimal design for sizes of solids that can pass through and a two-vane pump for wastewater according to the machine learning. According to the present disclosure, there is provided a design method of two-vane pump for wastewater using machine learning, including: a) setting an objective function; b) setting design variables of the impeller and volute for deriving the set objective function and a range of each design variable; c) deriving a plurality of experimental points including values of the design variables within the range of the design variable; d) generating an input value by calculating the value of the objective function through numerical analysis of each of the derived experimental points; e) constructing a surrogate model through machine learning for the input value; and f) deriving an optimal design of the two-vane pump for wastewater from the constructed surrogate model.
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公开(公告)号：US11251463B2
公开(公告)日：2022-02-15
申请号：US16348675
申请日：2017-10-27
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Ho Sung Kim , Min Young Kim , Seung Hoon Yang , Da Hye Kim , Hye Min Ryu , Ha Young Jung
IPC: H01M10/0562 , H01M10/058 , C01G25/02 , H01M10/052 , H01M10/0525 , C01G25/00 , H01M10/0585
Abstract: A method of preparing a sintered solid electrolyte includes (a) coprecipitating a mixed solution including a lanthanum precursor, a zirconium precursor, a gallium precursor, a complexing agent, and a pH adjuster to provide a solid electrolyte precursor; (b) washing and drying the solid electrolyte precursor to provide a washed and dried solid electrolyte precursor; (c) mixing the washed and dried solid electrolyte precursor with a lithium source to provide a mixture; (d) calcining the mixture to provide a calcined solid electrolyte, which is a gallium (Ga)-doped lithium lanthanum zirconium oxide (LLZO), as represented by Chemical Formula 1 below, LixLayZrzGawO12, Chemical Formula 1 where 5≤x≤9, 2≤y≤4, 1≤z≤3, and 0
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20.发明申请公开(公告)号：US20220002922A1
公开(公告)日：2022-01-06
申请号：US17292718
申请日：2019-12-02
Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
Inventor： Wan Gyu HAHM , Byeong Jin YEANG , Young Chan CHOI , Hyun Ju OH
IPC: D04H1/4291
Abstract: The present invention relates to a method manufacturing a melt-spun nonwoven fabric and a microfiber nonwoven web manufactured therefrom The present invention relates to a method for manufacturing a melt-spun nonwoven fabric, in which fibers obtained by melt-spinning a thermoplastic polymer through a spinning nozzle including at least one nozzle hole are collected by high-speed air stream, wherein the melt-spun fibers are subjected to momentary local heating at a high temperature higher than a spinning temperature while same are caused to pass through a nozzle local heating provided directly under the spinning nozzle during spinning, so that the method can lower the melt flow index and spinline elongation viscosity of a thermoplastic resin discharged from the nozzle hole without reducing a molecular weight, thereby providing a microfiber nonwoven web formed by finely thin fibers, compared to the conventional spun-bond nonwoven fabric.
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