Patents by Inventor Taek-Dong Chung
Taek-Dong Chung 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: 11850805Abstract: A method for manufacturing a PDMS device in accordance with an exemplary embodiment of the present invention surface treats the entire surface of a pattern with a thiol group (—SH), so that a hydrogel may be connected to the surface of the pattern by a covalent bond under ultraviolet rays. Therefore, a PDMS device manufactured by the above method has an advantage in that the shape thereof may be stably maintained without the swelling or desorption of a hydrogel even when an electrolyte is filled in a pattern.Type: GrantFiled: July 1, 2021Date of Patent: December 26, 2023Assignee: SEOUL NATIONAL UNIVERSITY R & DB FOUNDATIONInventors: Taek Dong Chung, Young-Chang Joo, Jeong-Yun Sun, Seok Hee Han, Sung Il Kim, Hae-Ryung Lee, Seung-Min Lim
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Publication number: 20230098453Abstract: A reverse electrodialysis device using a precipitation reaction, according to one embodiment of the present invention, comprises a first cell stack alternately forming solid salt chambers and precipitation chambers through cation-exchange membranes and anion-exchange membranes which are alternately provided, and a first water-soluble solid salt and a second water-soluble solid salt which are filled in the solid salt chambers, wherein the first water-soluble solid salt and the second water-soluble solid salt are alternately filled in the solid salt chambers, and can react with each other so as to generate a precipitate in neighboring precipitation chambers when water is supplied.Type: ApplicationFiled: December 6, 2022Publication date: March 30, 2023Inventors: Taek-Dong CHUNG, Jeong-Se YUN, Song-Yi YEON
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Patent number: 11565106Abstract: A reverse electrodialysis device using a precipitation reaction, according to one embodiment of the present invention, comprises a first cell stack alternately forming solid salt chambers and precipitation chambers through cation-exchange membranes and anion-exchange membranes which are alternately provided, and a first water-soluble solid salt and a second water-soluble solid salt which are filled in the solid salt chambers, wherein the first water-soluble solid salt and the second water-soluble solid salt are alternately filled in the solid salt chambers, and can react with each other so as to generate a precipitate in neighboring precipitation chambers when water is supplied.Type: GrantFiled: June 25, 2018Date of Patent: January 31, 2023Assignee: Seoul National University R&DB FoundationInventors: Taek-Dong Chung, Jeong-Se Yun, Song-Yi Yeon
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Patent number: 11474069Abstract: Disclosed is an open-junction ionic transistor which includes: a substrate; a p type gel which is formed as a polyelectrolyte gel on the substrate; an n type gel which is formed as the polyelectrolyte gel on the substrate and having one side contacting one side of the p type gel; a first reservoir contacting the other side of the p type gel; a second reservoir contacting the other side of the n type gel; and an encapsulation layer covering the p type gel, the n type gel, the first reservoir, and the second reservoir, in which on the encapsulation layer, an injection unit for injecting an ion input is formed at a location corresponding to an interface contacting the p type gel and the n type gel and when reverse bias voltage is applied between the p type gel and the n type gel, the ion input injected through the injection unit is amplified and ionic current peak is generated.Type: GrantFiled: May 29, 2020Date of Patent: October 18, 2022Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Jeong-Yun Sun, Young-Chang Joo, Taek Dong Chung, Hae-Ryung Lee, Seung-Min Lim, Seok Hee Han, Hyunjae Yoo
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Publication number: 20220063211Abstract: A method for manufacturing a PDMS device in accordance with an exemplary embodiment of the present invention surface treats the entire surface of a pattern with a thiol group (—SH), so that a hydrogel may be connected to the surface of the pattern by a covalent bond under ultraviolet rays. Therefore, a PDMS device manufactured by the above method has an advantage in that the shape thereof may be stably maintained without the swelling or desorption of a hydrogel even when an electrolyte is filled in a pattern.Type: ApplicationFiled: July 1, 2021Publication date: March 3, 2022Inventors: Taek Dong CHUNG, Young-Chang JOO, Jeong-Yun SUN, Seok Hee HAN, Sung Il KIM, Hae-Ryung LEE, Seung-Min LIM
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Patent number: 11186749Abstract: A slurry composition is disclosed which includes: a corrosion inhibitor including a material selected from carbon allotropes and derivatives thereof; and an oxidant. A method of manufacturing an integrated circuit device is disclosed which includes: forming a first metal film and a second metal film on a substrate, the first metal film and the second metal film respectively including different metals; and polishing, by using the slurry composition, a polishing target surface at which the first metal film and the second metal film are exposed.Type: GrantFiled: May 20, 2020Date of Patent: November 30, 2021Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Boyun Kim, Yeryung Jeon, Boun Yoon, Taek Dong Chung, Jae Gyeong Lee, Jin-Young Lee
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Publication number: 20210330965Abstract: A reverse electrodialysis device using a precipitation reaction, according to one embodiment of the present invention, comprises a first cell stack alternately forming solid salt chambers and precipitation chambers through cation-exchange membranes and anion-exchange membranes which are alternately provided, and a first water-soluble solid salt and a second water-soluble solid salt which are filled in the solid salt chambers, wherein the first water-soluble solid salt and the second water-soluble solid salt are alternately filled in the solid salt chambers, and can react with each other so as to generate a precipitate in neighboring precipitation chambers when water is supplied.Type: ApplicationFiled: June 25, 2018Publication date: October 28, 2021Inventors: Taek-Dong CHUNG, Jeong-Se YUN, Song-Yi YEON
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Publication number: 20200392375Abstract: A slurry composition is disclosed which includes: a corrosion inhibitor including a material selected from carbon allotropes and derivatives thereof; and an oxidant. A method of manufacturing an integrated circuit device is disclosed which includes: forming a first metal film and a second metal film on a substrate, the first metal film and the second metal film respectively including different metals; and polishing, by using the slurry composition, a polishing target surface at which the first metal film and the second metal film are exposed.Type: ApplicationFiled: May 20, 2020Publication date: December 17, 2020Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Boyun KIM, Yeryung JEON, Boun YOON, Taek Dong CHUNG, Jae Gyeong LEE, Jin-Young LEE
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Publication number: 20200378918Abstract: Disclosed is an open-junction ionic transistor which includes: a substrate; a p type gel which is formed as a polyelectrolyte gel on the substrate; an n type gel which is formed as the polyelectrolyte gel on the substrate and having one side contacting one side of the p type gel; a first reservoir contacting the other side of the p type gel; a second reservoir contacting the other side of the n type gel; and an encapsulation layer covering the p type gel, the n type gel, the first reservoir, and the second reservoir, in which on the encapsulation layer, an injection unit for injecting an ion input is formed at a location corresponding to an interface contacting the p type gel and the n type gel and when reverse bias voltage is applied between the p type gel and the n type gel, the ion input injected through the injection unit is amplified and ionic current peak is generated.Type: ApplicationFiled: May 29, 2020Publication date: December 3, 2020Inventors: Jeong-Yun SUN, Young-Chang Joo, Taek Dong Chung, Hae-Ryung LEE, Seung-Min LIM, Seok Hee HAN, Hyunjae YOO
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Patent number: 10689426Abstract: Disclosed is a polypeptide containing an extracellular domain of a synaptogenic protein, and a method for manufacturing a nerve cell, a complex containing a biotin tagged at the C-terminus of the polypeptide, an artificial synapse inducer for coupling the composite to a streptavidin (SAV)-coated substrate and a nerve cell. The complex tagged with a biotin at the C-terminus of the polypeptide containing the extracellular domain of the synaptogenic protein, such as neuroligin-1, can display activity by being attached to the SAV-coated substrate to adjust the orientation thereof without help of a supported lipid bilayer. The complex containing an additional RFP between the extracellular domain and the biotin of the synaptogenic protein not only facilitates easier mass-production, quantification, and tracking, but also displays activity of a normal synaptogenic protein, thereby inducing excitatory or inhibitory synaptic differentiation by being fixed to the substrate and added to the nerve cell culture.Type: GrantFiled: October 9, 2018Date of Patent: June 23, 2020Assignee: Seoul National University R&DB FoundationInventors: Taek Dong Chung, In Seong Hwang, Eun Joong Kim, Chang Su Jeon
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Publication number: 20190119343Abstract: Disclosed is a polypeptide containing an extracellular domain of a synaptogenic protein, and a method for manufacturing a nerve cell, a complex containing a biotin tagged at the C-terminus of the polypeptide, an artificial synapse inducer for coupling the composite to a streptavidin (SAV)-coated substrate and a nerve cell. The complex tagged with a biotin at the C-terminus of the polypeptide containing the extracellular domain of the synaptogenic protein, such as neuroligin-1, can display activity by being attached to the SAV-coated substrate to adjust the orientation thereof without help of a supported lipid bilayer. The complex containing an additional RFP between the extracellular domain and the biotin of the synaptogenic protein not only facilitates easier mass-production, quantification, and tracking, but also displays activity of a normal synaptogenic protein, thereby inducing excitatory or inhibitory synaptic differentiation by being fixed to the substrate and added to the nerve cell culture.Type: ApplicationFiled: October 9, 2018Publication date: April 25, 2019Inventors: Taek Dong CHUNG, In Seong HWANG, Eun Joong KIM, Chang Su JEON
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Patent number: 10107805Abstract: The present invention relates to a virus-microbead complex including a microbead and a virus layer, in which linear viruses are bound individually to the surface of the microbead, and an immunoassay kit including the same. The virus-microbead complex of the present invention is characterized in that the linear viruses are bound to the surface of the microbead so that the orientations of the linear viruses are regulated using the interaction of streptavidin-biotin introduced thereon, thereby providing a significantly increased volume to surface area ratio, increasing the number of antibodies or ligands capable of binding thereto, and as a result, mediating the binding of antibodies or ligands to a unit bead with high density, which eventually leads to an increased sensitivity in immunoassays, and an application into a suspension array.Type: GrantFiled: September 2, 2013Date of Patent: October 23, 2018Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATIONInventors: Taek Dong Chung, Inseong Hwang, Chang Su Jeon
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Patent number: 9593427Abstract: Provided are a method for forming a pattern, and a catalyst and an electronic element using the method. The method for forming a pattern comprises the steps of: preparing, on a surface, a substrate sequentially including a photoconductive material layer and an oxide layer; making an area, on which a pattern is to be formed, on the oxide layer of the substrate, come into contact with an electrolyte; connecting the substrate and the electrolyte to a first electrode and a second electrode connected to a power source, respectively; and selectively irradiating light from a light source to the electrolyte and applying a voltage to the first electrode or the second electrode, thereby directly forming the pattern on the oxide layer of the substrate.Type: GrantFiled: July 25, 2013Date of Patent: March 14, 2017Assignees: SNU R&DB FOUNDATION, GLOBAL FRONTIER CENTER FOR MULTISCALE ENERGY SYSTEMSInventors: Taek Dong Chung, Sung Yul Lim
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Patent number: 9519006Abstract: The present disclosure relates to a probe capable of electrochemical and Raman spectroscopic monitoring wherein a Raman-active gold microshell having conductivity is attached to the tip of a glass microcapillary tube in which a conductive material is coated on an inner wall thereof by electroless plating. By coupling the probe with a system capable of moving the probe, the activities of various catalyst materials can be detected quickly and information of intermediate products moving from and adsorbed on the surface can be provided.Type: GrantFiled: March 29, 2011Date of Patent: December 13, 2016Assignee: Seoul National University R&DB FoundationInventors: Taek Dong Chung, Beom Jin Kim
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Publication number: 20160137707Abstract: Disclosed is a polypeptide containing an extracellular domain of a synaptogenic protein, and a method for manufacturing a nerve cell, a complex containing a biotin tagged at the C-terminus of the polypeptide, an artificial synapse inducer for coupling the composite to a streptavidin (SAV)-coated substrate and a nerve cell. The complex tagged with a biotin at the C-terminus of the polypeptide containing the extracellular domain of the synaptogenic protein, such as neuroligin-1, can display activity by being attached to the SAV-coated substrate to adjust the orientation thereof without help of a supported lipid bilayer. The complex containing an additional RFP between the extracellular domain and the biotin of the synaptogenic protein not only facilitates easier mass-production, quantification, and tracking, but also displays activity of a normal synaptogenic protein, thereby inducing excitatory or inhibitory synaptic differentiation by being fixed to the substrate and added to the nerve cell culture.Type: ApplicationFiled: August 19, 2013Publication date: May 19, 2016Inventors: Taek Dong CHUNG, In Seong HWANG, Eun Joong KIM, Chang Su JEON
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Publication number: 20160108536Abstract: Provided are a method for forming a pattern, and a catalyst and an electronic element using the method. The method for forming a pattern comprises the steps of: preparing, on a surface, a substrate sequentially including a photoconductive material layer and an oxide layer; making an area, on which a pattern is to be formed, on the oxide layer of the substrate, come into contact with an electrolyte; connecting the substrate and the electrolyte to a first electrode and a second electrode connected to a power source, respectively; and selectively irradiating light from a light source to the electrolyte and applying a voltage to the first electrode or the second electrode, thereby directly forming the pattern on the oxide layer of the substrate.Type: ApplicationFiled: July 25, 2013Publication date: April 21, 2016Inventors: Taek Dong CHUNG, Sung Yul LIM
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Patent number: 9318697Abstract: In a method of detecting an etch by-product, the method including forming a magnetic layer including palladium (Pd) on a substrate; etching the magnetic layer to form a magnetic layer pattern; depositing a mixture including an alkyl bromide compound on a surface of the magnetic layer pattern; and measuring a current difference between the substrate and the mixture to detect an etch by-product on the surface of the magnetic layer pattern.Type: GrantFiled: August 1, 2014Date of Patent: April 19, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin-Hye Bae, Won-Jun Lee, Sung-Yoon Chung, Taek-Dong Chung
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Publication number: 20160054314Abstract: The present invention relates to a virus-microbead complex including a microbead and a virus layer, in which linear viruses are bound individually to the surface of the microbead, and an immunoassay kit including the same. The virus-microbead complex of the present invention is characterized in that the linear viruses are bound to the surface of the microbead so that the orientations of the linear viruses are regulated using the interaction of streptavidin-biotin introduced thereon, thereby providing a significantly increased volume to surface area ratio, increasing the number of antibodies or ligands capable of binding thereto, and as a result, mediating the binding of antibodies or ligands to a unit bead with high density, which eventually leads to an increased sensitivity in immunoassays, and an application into a suspension array.Type: ApplicationFiled: September 2, 2013Publication date: February 25, 2016Inventors: Taek Dong Chung, Inseong Hwang, Chang Su Jeon
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Publication number: 20150179927Abstract: In a method of detecting an etch by-product, the method including forming a magnetic layer including palladium (Pd) on a substrate; etching the magnetic layer to form a magnetic layer pattern; depositing a mixture including an alkyl bromide compound on a surface of the magnetic layer pattern; and measuring a current difference between the substrate and the mixture to detect an etch by-product on the surface of the magnetic layer pattern.Type: ApplicationFiled: August 1, 2014Publication date: June 25, 2015Inventors: Jin-Hye BAE, Won-Jun LEE, Sung-Yoon CHUNG, Taek-Dong CHUNG
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Publication number: 20150140469Abstract: The present invention provides a fuel electrode including a substrate and a nanoporous metallic catalyst layer, characterized in that the metallic catalyst layer includes open interconnected 3D nanopores, and the pore and the pore connections have a size suitable for allowing hydrocarbons having alcohol groups to pass through the interconnected pores so that they react in contact with the surface of the catalyst by confined molecular dynamics. Further, the present invention provides a compartmentless fuel cell electrode pair including the fuel electrode of the present invention; and a polymer membrane-coated oxygen electrode into which a catalyst layer is introduced onto the substrate and which blocks the hydrocarbons having alcohol groups as a fuel molecule and allows the diffusion of oxygen molecules.Type: ApplicationFiled: January 16, 2015Publication date: May 21, 2015Inventors: Taek Dong Chung, Ji Hyung Han