Patents by Inventor Sang Ki Chun
Sang Ki Chun 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: 11977199Abstract: A device for evaluating characteristics of a target ground containing a metal component is proposed. The device includes a penetration probe having a main frame and a pair of side frames respectively installed at opposite side ends of the main frame, wherein each side frame has a lower end thereof extending downward from the main frame; a plurality of electrodes installed to be exposed to outside on the main frame; an electrode measurement part for measuring apparent chargeability of the target ground by applying power for measurement to the plurality of electrodes; and a main processor for calculating a weight ratio of a metal component of the target ground on the basis of the apparent chargeability measured by the electrode measurement part and calculating a volume ratio of the metal component of the target ground on the basis of the calculated weight ratio of the metal component.Type: GrantFiled: October 26, 2020Date of Patent: May 7, 2024Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Jong-Sub Lee, Sang-Yeob Kim, Nam-Sun Kim, Joon-Ki Chun
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Patent number: 11578243Abstract: The present application relates to a cross-linkable composition. The present application can provide a cross-linkable composition without degradation of cross-linking efficiency while exhibiting conductivity by containing an ionic compound, and its use.Type: GrantFiled: April 24, 2019Date of Patent: February 14, 2023Inventors: Sang Ki Chun, Yu Ra Lee
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Publication number: 20210147727Abstract: The present application relates to a cross-linkable composition. The present application can provide a cross-linkable composition without degradation of cross-linking efficiency while exhibiting conductivity by containing an ionic compound, and its use.Type: ApplicationFiled: April 24, 2019Publication date: May 20, 2021Applicant: LG Chem, Ltd.Inventors: Sang Ki Chun, Yu Ra Lee
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Publication number: 20210054242Abstract: The present application relates to a cross-linkable composition. The present application can provide a cross-linkable composition without degradation of cross-linking efficiency while exhibiting conductivity by containing an ionic compound, and its use.Type: ApplicationFiled: April 24, 2019Publication date: February 25, 2021Applicant: LG Chem, Ltd.Inventors: Sang Ki Chun, Seul Gi Kang
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Publication number: 20210032435Abstract: A crosslinkable composition includes an acrylic polymer, an ionic compound having an alkali metal cation, and a compound represented by Formula 1 below: wherein, R1 to R4 are each independently a hydrogen atom or an alkyl group. The crosslinkable composition prevents deterioration of crosslinking efficiency while exhibiting conductivity by containing an ionic compound.Type: ApplicationFiled: August 14, 2018Publication date: February 4, 2021Applicant: LG Chem, Ltd.Inventor: Sang Ki Chun
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Publication number: 20200277519Abstract: An adhesive composition includes a polyvinyl alcohol binder, a crosslinking agent and a compound of Formula 1 below, HO—SO2—R??[Formula 1] wherein in Formula 1, R is an alkyl group, a haloalkyl group or a haloalkylaryl group. The adhesive composition may have excellent water resistance, adhesive force and other optical properties as well as greatly improved storage stability.Type: ApplicationFiled: August 14, 2018Publication date: September 3, 2020Applicant: LG Chem, Ltd.Inventors: Sang Ki Chun, Kyoung Hoon Kim, Hae Sung Cho, Jin Ah Seok, Jun Gu Yeo
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Patent number: 10665472Abstract: The present invention relates to a system and a method of removing a foreign material by using an electric field adsorbing scheme, which are capable of easily adsorbing and removing a foreign material on a surface of a film by using an electric field adsorbing scheme through a micro-current (several micro ampere) voltage driving method, not a surface treatment method, such as plasma discharge processing, corona discharge processing, and air blowing processing, which causes damage to the surface of the film, in a processing process for removing the foreign material on the surface of the film, and particularly, which exclude high pressure discharge processing and the like, thereby decreasing an incurrence rate of a safety accident of an operator and preventing a surface of a film from being scratched.Type: GrantFiled: March 28, 2017Date of Patent: May 26, 2020Assignee: LG CHEM, LTD.Inventors: Dongmyung Shin, Sang Ki Chun, Bum Woo Lee
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Patent number: 10412788Abstract: Provided are a heating element, which includes: a transparent substance; a conductive heating line that is provided on at least one side of the transparent substance; bus bars that is electrically connected to the conductive heating line; and a power portion that is connected to the bus bars, wherein 30% or more of the entire area of the transparent substance has a conductive heating line pattern in which, when the straight line that intersects the conductive heating line is drawn, a ratio (distance distribution ratio) of standard deviation in respects to an average value of distances between adjacent intersection points of the straight line and the conductive heating line is 5% or more, and a method for manufacturing the same.Type: GrantFiled: September 1, 2015Date of Patent: September 10, 2019Assignee: LG CHEM, LTD.Inventors: Hyeon Choi, Su-Jin Kim, Ji-Young Hwang, Seung-Tae Oh, Ki-Hwan Kim, Sang-Ki Chun, Young-Jun Hong, In-Seok Hwang, Dong-Wook Lee
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Patent number: 9999099Abstract: The present invention provides a heat emitting body including a) a transparent substrate, and b) a conductive heat emitting pattern having a boundary line shape of figures forming a Voronoi diagram and an intersection point part of boundary lines, at which two or more boundary lines meet each other, forming a curve on at least one side of the transparent substrate, and a method for manufacturing the same.Type: GrantFiled: January 21, 2010Date of Patent: June 12, 2018Assignee: LG CHEM, LTD.Inventors: Sang-Ki Chun, In-Seok Hwang, Dong-Wook Lee, Jung-Won Park, Hyeon Choi, Hyun-Sik Kim, Hui-Jung Park, Su-Jin Kim
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Publication number: 20180114701Abstract: The present invention relates to a system and a method of removing a foreign material by using an electric field adsorbing scheme, which are capable of easily adsorbing and removing a foreign material on a surface of a film by using an electric field adsorbing scheme through a micro-current (several micro ampere) voltage driving method, not a surface treatment method, such as plasma discharge processing, corona discharge processing, and air blowing processing, which causes damage to the surface of the film, in a processing process for removing the foreign material on the surface of the film, and particularly, which exclude high pressure discharge processing and the like, thereby decreasing an incurrence rate of a safety accident of an operator and preventing a surface of a film from being scratched.Type: ApplicationFiled: March 28, 2017Publication date: April 26, 2018Inventors: Dongmyung SHIN, Sang Ki CHUN, Bum Woo LEE
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Patent number: 9946377Abstract: The present invention relates to a touch panel comprising a structure body comprising: a substrate; a conducting pattern that is provided on at least one surface of the substrate; and a light absorption pattern provided on at least one surface of the conducting pattern and provided on at least a portion of regions corresponding to the conducting pattern, and a method for manufacturing the same.Type: GrantFiled: October 19, 2011Date of Patent: April 17, 2018Assignee: LG CHEM, LTD.Inventors: Ji Young Hwang, In-Seok Hwang, Sang Ki Chun, Seung Heon Lee
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Patent number: 9624126Abstract: Provided are a heating element, which includes: a transparent substance; a conductive heating line that is provided on at least one side of the transparent substance; bus bars that is electrically connected to the conductive heating line; and a power portion that is connected to the bus bars, wherein 30% or more of the entire area of the transparent substance has a conductive heating line pattern in which, when the straight line that intersects the conductive heating line is drawn, a ratio (distance distribution ratio) of standard deviation in respects to an average value of distances between adjacent intersection points of the straight line and the conductive heating line is 2% or more, and a method for manufacturing the same.Type: GrantFiled: March 17, 2009Date of Patent: April 18, 2017Assignee: LG CHEM, LTD.Inventors: Hyeon Choi, Su-Jin Kim, Ji-Young Hwang, Seung-Tae Oh, Ki-Hwan Kim, Sang-Ki Chun, Young-Jun Hong, In-Seok Hwang, Dong-Wook Lee
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Patent number: 9611171Abstract: Provided are a heating element that includes: a transparent substance; a conductive heating line that is provided on at least one side of the transparent substance; bus bars that is electrically connected to the conductive heating line; and a power portion that is connected to the bus bars, wherein 30% or more of the entire area of the transparent substance has a conductive heating line pattern that is formed of closed figures where a distribution is continuous and a ratio (area distribution ratio) of a standard deviation in respects to an average value of areas of the closed figures is 2% or more, and a method for manufacturing the same.Type: GrantFiled: March 17, 2009Date of Patent: April 4, 2017Assignee: LG CHEM, LTD.Inventors: Hyeon Choi, Su-Jin Kim, Ji-Young Hwang, Seung-Tae Oh, Ki-Hwan Kim, Sang-Ki Chun, Young-Jun Hong, In-Seok Hwang, Dong-Wook Lee
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Patent number: 9615450Abstract: The present invention provides a method for manufacturing a conductive pattern, comprising the steps of: a) forming a conductive film on a substrate; b) forming an etching resist pattern on the conductive film; and c) forming a conductive pattern having a smaller line width than a width of the etching resist pattern by over-etching the conductive film by using the etching resist pattern, and a conductive pattern manufactured by using the same. According to the exemplary embodiment of the present invention, it is possible to effectively and economically provide a conductive pattern having a ultrafine line width.Type: GrantFiled: November 15, 2013Date of Patent: April 4, 2017Assignee: LG CHEM, LTD.Inventors: Ji-Young Hwang, In-Seok Hwang, Dong-Wook Lee, Min-Choon Park, Seung-Heon Lee, Sang-Ki Chun, Yong-Koo Son, Beom-Mo Koo
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Patent number: 9574095Abstract: Provided are a composition for printing for use in a printing method which uses a silicon-based blanket, including: 1) a binder resin, 2) a low boiling point solvent having a boiling point of less than 100° C., 3) a medium boiling point solvent having a boiling point of 100° C. or more and less than 180° C., and 4) a high boiling point solvent having a boiling point of 180° C. or more, wherein the medium boiling point solvent and the high-boiling solvent have a difference in solubility parameter with the binder resin of 3 (cal·cm)1/2 or less, a difference in solubility parameter with the silicon-based blanket of 4 (cal·cm)1/2 or more, and a swelling parameter for the silicon-based blanket of 2 or less, and a printing method using the same.Type: GrantFiled: April 5, 2012Date of Patent: February 21, 2017Assignee: LG CHEM, LTD.Inventors: Yong Goo Son, Ji Young Hwang, Beom Mo Koo, In-Seok Hwang, Seung Heon Lee, Sang Ki Chun, Jiehyun Seong, Joo Yeon Kim
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Patent number: 9524043Abstract: The present invention provides a method of manufacturing a touch screen, comprising the steps of: a) forming a conductive layer on a substrate; b) forming an etching resist pattern on the conductive layer; and c) forming a conductive pattern having a line width smaller than the line width of the etching resist pattern by over-etching the conductive layer by using the etching resist pattern and a touch screen manufactured by the method. According to the present invention, a touch screen comprising a conductive pattern having an ultrafine line width can be economically and efficiently provided.Type: GrantFiled: October 20, 2014Date of Patent: December 20, 2016Assignee: LG Chem, Ltd.Inventors: Ji-Young Hwang, In-Seok Hwang, Sang-Ki Chun, Dong-Wook Lee, Yong-Koo Son, Min-Choon Park, Seung-Heon Lee, Beom-Mo Koo, Young-Jun Hong, Ki-Hwan Kim, Su-Jin Kim, Hyeon Choi
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Publication number: 20160165667Abstract: Provided are a heating element, which includes: a transparent substance; a conductive heating line that is provided on at least one side of the transparent substance; bus bars that is electrically connected to the conductive heating line; and a power portion that is connected to the bus bars, wherein 30% or more of the entire area of the transparent substance has a conductive heating line pattern in which, when the straight line that intersects the conductive heating line is drawn, a ratio (distance distribution ratio) of standard deviation in respects to an average value of distances between adjacent intersection points of the straight line and the conductive heating line is 5% or more, and a method for manufacturing the same.Type: ApplicationFiled: September 1, 2015Publication date: June 9, 2016Inventors: Hyeon CHOI, Su-Jin KIM, Ji-Young HWANG, Seung-Tae OH, Ki-Hwan KIM, Sang-Ki CHUN, Young-Jun HONG, In-Seok HWANG, Dong-Wook LEE
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Patent number: 9363888Abstract: The present invention relates to a conducting substrate and a touch screen comprising the same, and the conducting substrate according to the present invention comprises a board, an electric conducting pattern provided on at least one surface of the board, and a darkening layer provided on at least one surface of the electric conducting pattern and in a region corresponding to the electric conducting pattern, wherein a reflective diffraction intensity of a reflective diffraction image obtained by radiating light emitted from a point light source on one surface from which the darkening layer is visible is reduced by 60% or more as compared to the conducting substrate having the same constitution except that the electric conducting pattern is formed of Al and does not comprise the darkening layer.Type: GrantFiled: March 28, 2012Date of Patent: June 7, 2016Assignee: LG CHEM, LTD.Inventors: Ji Young Hwang, In-Seok Hwang, Seung Heon Lee, Sang Ki Chun, Yong Goo Son, Beom Mo Koo, Jiehyun Seong, Joo Yeon Kim, Je Seob Park
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Patent number: 9345130Abstract: The present invention relates to a conductive substrate comprising a conductive pattern having an improved concealment property and a touch panel comprising the same, and the conductive substrate according to the present invention comprises: a transparent substrate, and a conductive pattern comprising a conductive line provided on the transparent substrate, wherein the conductive pattern comprises two or more conductive lines spaced from each other in a longitudinal direction of the conductive line, and a distance between nearest-adjacent ends of two or more conductive lines spaced from each other is 15 ?m or less. The conductive substrate according to the present invention can more efficiently conceal a metal line comprised in the conductive pattern.Type: GrantFiled: August 22, 2013Date of Patent: May 17, 2016Assignee: LG CHEM, LTD.Inventors: Ji Young Hwang, In-Seok Hwang, Seung Heon Lee, Sang Ki Chun, Beom Mo Koo
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Patent number: 9313883Abstract: The present invention relates to a conducting substrate and a touch screen comprising the same, and the conducting substrate according to the present invention comprises a board, and an electric conducting pattern provided on at least one surface of the board, wherein the electric conducting pattern comprises a border structure of closed figures continuously connected and does not comprise the closed figures having the same shape in a predetermined unit area (1 cm×1 cm), and the number of vertexes of the closed figures is different from the number of vertexes of quadrangles having the same number as the closed figures.Type: GrantFiled: March 28, 2012Date of Patent: April 12, 2016Assignee: LG CHEM, LTD.Inventors: Ji Young Hwang, In-Seok Hwang, Seung Heon Lee, Sang Ki Chun, Yong Goo Son, Beom Mo Koo, Jiehyun Seong, Joo Yeon Kim, Je Seob Park