Patents by Inventor Yi-Rang Lim
Yi-Rang Lim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11973209Abstract: A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide has a layered crystal structure of space group R3m, includes the nickel (Ni) in an amount of 60 mol % or less based on a total amount of transition metals, includes the cobalt (Co) in an amount greater than an amount of the manganese (Mn), and is composed of single particles.Type: GrantFiled: June 7, 2019Date of Patent: April 30, 2024Assignee: LG Chem, Ltd.Inventors: Eun Hee Lee, Seong Bae Kim, Young Su Park, Yi Rang Lim, Hong Kyu Park, Song Yi Yang, Byung Hyun Hwang, Woo Hyun Kim
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Patent number: 11973222Abstract: A positive electrode active material precursor having a uniform particle size distribution and represented by Formula 1, wherein a percentage of fine powder with an average particle diameter (D50) of 1 ?m or less is generated when the positive electrode active material precursor is rolled at 2.5 kgf/cm2 is less than 1%, and an aspect ratio is 0.93 or more, and a method of preparing the positive electrode active material precursor [NixCoyM1zM2w](OH)2 ??[Formula 1] in Formula 1, 0.5?x<1, 0<y?0.5, 0<z?0.5, and 0?w?0.1, M1 includes at least one selected from the group consisting of Mn and Al, and M2 includes at least one selected from the group consisting of Zr, B, W, Mo, Cr, Nb, Mg, Hf, Ta, La, Ti, Sr, Ba, Ce, F, P, S, and Y. A method of preparing the positive electrode active material precursor is also provided.Type: GrantFiled: December 7, 2018Date of Patent: April 30, 2024Assignee: LG Chem, Ltd.Inventors: Seong Bae Kim, Yi Rang Lim, Kyoung Wan Park, Hyun Uk Kim, Hong Kyu Park, Chang Jun Moon, Eun Hee Kim
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Publication number: 20240038829Abstract: A method for fabricating a semiconductor device includes sequentially stacking a sacrificial layer and a support layer on a substrate, forming bottom electrodes penetrating the sacrificial layer and the support layer to come into contact with the substrate, patterning the support layer to form a support pattern that connects the bottom electrodes to each other, removing the sacrificial layer to expose surfaces of the bottom electrodes, depositing a conductive layer on the exposed surfaces of the bottom electrodes and a surface of the support pattern, and etching the conductive layer. The etching the conductive layer includes selectively removing the conductive layer on the support pattern to expose the surface of the support pattern. The depositing the conductive layer and the etching the conductive layer are alternately performed in a same chamber.Type: ApplicationFiled: April 4, 2023Publication date: February 1, 2024Applicant: Samsung Electronics Co., Ltd.Inventors: Jiye BAEK, Yi Rang Lim
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Patent number: 11390530Abstract: A method for preparing porous inorganic particles is disclosed. The method includes the steps of: (a) preparing an emulsion comprising an inorganic precursor and a polar solvent; (b) adding an organic solvent to the emulsion of step (a) to swell emulsion particles; (c) mixing the swollen emulsion of step (b) with polymer particles having a positive charge on the surface thereof; (d) adding a surfactant to the mixture of step (c) and removing the organic solvent; (e) adding an initiator to the result of step (d) to polymerize the same; and (f) firing the result of step (e) to remove the polymer particles so as to form macropores.Type: GrantFiled: May 30, 2018Date of Patent: July 19, 2022Assignee: Amorepacific CornorationInventors: Yan Li, Hyunsuk Lee, Jaewon Yoo, Yongjin Kim, Gi-Ra Yi, Yi-Rang Lim, Seung-hyun Kim
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Publication number: 20210387124Abstract: A cleaning method according to the present invention comprises mounting the metal filter on a jig that is vertically elevatable and horizontally slidable in a cleaning bath so that the opening is faced downward, descending the jig so that a first nozzle installed in the cleaning bath enters the opening, injecting a predetermined amount of water and a cleaning solution into the cleaning bath so that the metal filter is immersed, spraying compressed air through the first nozzle to discharge bubbles of the compressed air toward an inner surface of the metal filter, draining the cleaning bath, spraying water through a second nozzle to remove the cleaning solution from the metal filter, and spraying the compressed air through the first nozzle to dry the metal filter. An apparatus for cleaning a metal filter is also disclosed.Type: ApplicationFiled: September 11, 2019Publication date: December 16, 2021Applicant: LG Chem, Ltd.Inventors: Hyun Uk Kim, Sang Soo Jang, Young Su Park, Seong Bae Kim, Yi Rang Lim, Kyoung Wan Park, Eun Hee Kim
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Publication number: 20210244630Abstract: The present specification describes a method for manufacturing porous inorganic particles and a light-reflecting composition comprising porous inorganic particles. According to an embodiment of the present disclosure it is possible to provide a method for manufacturing porous inorganic particles capable of selective transmission or scattering of light having a specific wavelength range by controlling pore size and shell thickness.Type: ApplicationFiled: April 26, 2019Publication date: August 12, 2021Applicant: AMOREPACIFIC CORPORATIONInventors: Yan LI, Soojin LEE, Yongjin KIM, Gi-Ra YI, Yi-Rang LIM, Seung-hyun KIM
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Publication number: 20210155487Abstract: A method for preparing porous inorganic particles is disclosed. The method includes the steps of: (a) preparing an emulsion comprising an inorganic precursor and a polar solvent; (b) adding an organic solvent to the emulsion of step (a) to swell emulsion particles; (c) mixing the swollen emulsion of step (b) with polymer particles having a positive charge on the surface thereof; (d) adding a surfactant to the mixture of step (c) and removing the organic solvent; (e) adding an initiator to the result of step (d) to polymerize the same; and (f) firing the result of step (e) to remove the polymer particles so as to form macropores.Type: ApplicationFiled: May 30, 2018Publication date: May 27, 2021Applicant: AMOREPACIFIC CORPORATIONInventors: Yan LI, Hyunsuk LEE, Jaewon YOO, Yongjin KIM, Gi-Ra YI, Yi-Rang LIM, Seung-hyun KIM
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Publication number: 20210018665Abstract: Provided are a polarizer protective film comprising a polymeric film and a coating layer formed on at least one surface of the polymeric film, where the coating layer has a plurality of concave embossed patterns and has a surface roughness of 2.0 nm to 20.0 nm, and a manufacturing method thereof.Type: ApplicationFiled: February 21, 2018Publication date: January 21, 2021Inventors: Jun Wuk PARK, Yi Rang LIM, Sung In KIM, Kyoung Won KIM
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Publication number: 20210005875Abstract: A positive electrode active material for a secondary battery which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide has a layered crystal structure of space group R3m, includes the nickel (Ni) in an amount of 60 mol % or less based on a total amount of transition metals, includes the cobalt (Co) in an amount greater than an amount of the manganese (Mn), and is composed of single particles.Type: ApplicationFiled: June 7, 2019Publication date: January 7, 2021Applicant: LG Chem, Ltd.Inventors: Eun Hee Lee, Seong Bae Kim, Young Su Park, Yi Rang Lim, Hong Kyu Park, Song Yi Yang, Byung Hyun Hwang, Woo Hyun Kim
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Publication number: 20210005878Abstract: A method for preparing a positive electrode active material for a secondary battery includes the steps of: providing a positive electrode active material precursor including a core portion and a shell portion, wherein the core portion contains nickel (Ni), cobalt (Co), and manganese (Mn), and the shell portion contains cobalt (Co) and surrounds the core portion; and forming a lithium composite transition metal oxide in a single particle form by mixing the positive electrode active material precursor with a lithium raw material to obtain a mixture, and firing the mixture at a temperature of 970° C. or more.Type: ApplicationFiled: June 7, 2019Publication date: January 7, 2021Applicant: LG Chem, Ltd.Inventors: Eun Hee Lee, Seong Bae Kim, Young Su Park, Yi Rang Lim
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Publication number: 20200373573Abstract: A positive electrode active material precursor having a uniform particle size distribution and represented by Formula 1, wherein a percentage of fine powder with an average particle diameter (D50) of 1 ?m or less is generated when the positive electrode active material precursor is rolled at 2.5 kgf/cm2 is less than 1%, and an aspect ratio is 0.93 or more, and a method of preparing the positive electrode active material precursor [NixCoyM1zM2w](OH)2??[Formula 1] in Formula 1, 0.5?x<1, 0<y?0.5, 0<z?0.5, and 0?w?0.1, M1 includes at least one selected from the group consisting of Mn and Al, and M2 includes at least one selected from the group consisting of Zr, B, W, Mo, Cr, Nb, Mg, Hf, Ta, La, Ti, Sr, Ba, Ce, F, P, S, and Y. A method of preparing the positive electrode active material precursor is also provided.Type: ApplicationFiled: December 7, 2018Publication date: November 26, 2020Applicant: LG Chem, Ltd.Inventors: Seong Bae Kim, Yi Rang Lim, Kyoung Wan Park, Hyun Uk Kim, Hong Kyu Park, Chang Jun Moon, Eun Hee Kim
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Patent number: 10710048Abstract: A co-precipitation reactor with a continuous filtering system mounted, wherein the co-precipitation reactor includes a main body accommodating a reactant for reaction therein, an input unit inputting the reactant into the main body, and a filter unit installed in the main body to filter a precursor of the precursor generated by reacting with the reactant in the main body and a reaction solution.Type: GrantFiled: December 26, 2018Date of Patent: July 14, 2020Assignee: LG Chem, Ltd.Inventors: Hyun Uk Kim, Seong Bae Kim, Chang Jun Moon, Yi Rang Lim, Kyoung Wan Park, Eun Hee Kim
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Patent number: 10654982Abstract: The present invention relates to a method for preparing a polarizer protecting film. More specifically, the present invention relates to a method for preparing a polarizer protecting film capable of exhibiting excellent physical and optical properties and of preventing damages of a lower polarizer plate caused by a prism sheet.Type: GrantFiled: October 20, 2017Date of Patent: May 19, 2020Assignee: LG CHEM, LTD.Inventors: Yi Rang Lim, Jun Wuk Park, Kyoung Won Kim, Sung In Kim
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Publication number: 20200047147Abstract: A co-precipitation reactor with a continuous filtering system mounted, wherein the co-precipitation reactor includes a main body accommodating a reactant for reaction therein, an input unit inputting the reactant into the main body, and a filter unit installed in the main body to filter a precursor of the precursor generated by reacting with the reactant in the main body and a reaction solution.Type: ApplicationFiled: December 26, 2018Publication date: February 13, 2020Applicant: LG Chem, Ltd.Inventors: Hyun Uk Kim, Seong Bae Kim, Chang Jun Moon, Yi Rang Lim, Kyoung Wan Park, Eun Hee Kim
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Patent number: 10209407Abstract: There is provided an optical film including an acrylic film, and a functional coating layer formed on at least one side of the acrylic film. The functional coating layer includes a water-dispersible resin and at least two kinds of fine particles having different average particle sizes.Type: GrantFiled: August 7, 2013Date of Patent: February 19, 2019Assignee: LG Chem, Ltd.Inventors: Jun-Wuk Park, Yi-Rang Lim, Nam-Jeong Lee, Hwa-Sub Shim
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Patent number: 10144831Abstract: The present invention relates to an optical film including: a base material film; and a primer layer containing a polyester resin and water-dispersible minute particulates on at least one surface of the base material film and having a refractive index difference of 0.03 or less from the base material film, in which the polyester resin includes polyester glycol formed by a reaction of polybasic acid including an aromatic carboxylic acid compound and an aliphatic carboxylic acid compound at a mole ratio of 1:9 to 9:1 and polyol, adhesion force between the optical film and a functional coating layer is excellent, and a rainbow phenomenon is reduced and an optical property is excellent due to a small refractive index difference.Type: GrantFiled: September 30, 2014Date of Patent: December 4, 2018Assignee: LG CHEM, LTD.Inventors: Hwa-Sub Shim, Jun-Wuk Park, Yi-Rang Lim, Kyoung-Won Kim
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Publication number: 20180112050Abstract: The present invention relates to a method for preparing a polarizer protecting film. More specifically, the present invention relates to a method for preparing a polarizer protecting film capable of exhibiting excellent physical and optical properties and of preventing damages of a lower polarizer plate caused by a prism sheet.Type: ApplicationFiled: October 20, 2017Publication date: April 26, 2018Inventors: Yi Rang Lim, Jun Wuk Park, Kyoung Won Kim, Sung In Kim
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Patent number: 9715045Abstract: The present invention relates to an optical film including an acryl-based film; and a functional coating layer formed on at least one surface of the acryl-based film, containing a conductive material and a water-dispersible resin and having surface resistance of 109 W/Sq to 1013 W/Sq.Type: GrantFiled: September 26, 2014Date of Patent: July 25, 2017Assignee: LG CHEM, LTD.Inventors: Kyoung-Won Kim, Nam-Jeong Lee, Hwa-Sub Shim, Jun-Wuk Park, Yi-Rang Lim
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Patent number: 9523792Abstract: A double-sided polarizer includes a polarizing film, a first adhesive layer formed on one surface of the polarizing film, a second adhesive layer formed on the other surface of the polarizing film, a first transparent film formed on the first adhesive layer, and a second transparent film formed on the second adhesive layer, wherein the first adhesive layer and the second adhesive layer are formed of an active energy line-curable adhesive and the first adhesive layer is 0.1 ?m to 3 ?m thick, and there is also provided an optical device including the double-sided polarizer.Type: GrantFiled: June 13, 2013Date of Patent: December 20, 2016Assignee: LG Chem, Ltd.Inventors: Eun-Mi Seo, Hwa-Sub Shim, Jee-Hyon Min, Nam-Jeong Lee, Kyun-Il Rah, Jun-Wuk Park, Eun Soo Huh, Yi-Rang Lim
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Patent number: 9487685Abstract: The present invention relates to an adhesive composition including 100 parts by weight of a first epoxy compound having a glass transition temperature of a homopolymer of not less than 120° C., 30 parts by weight to 100 parts by weight of a second epoxy compound having a glass transition temperature of a homopolymer of not more than 60° C., and 0.5 parts by weight to 20 parts by weight of a cationic photopolymerization initiator, and a polarizing plate using the same.Type: GrantFiled: October 12, 2012Date of Patent: November 8, 2016Assignee: LG Chem, Ltd.Inventors: Eun-Mi Seo, Eun-Soo Huh, Nam-Jeong Lee, Hwa-Sub Shim, Kyun-II Rah, Jun-Wuk Park, Jee-Hyon Min, Yi-Rang Lim