Patents by Inventor In Yong Seo

In Yong Seo 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).

  • Patent number: 9575482
    Abstract: The present invention relates to an apparatus and method for performing adjustment to optimize the voltage for each distribution network in a power distribution system. The apparatus for adjusting a voltage in the power distribution system adjusts the voltage by switching a switch that lies on a path in the power distribution system. The apparatus determines a switch that is to become a switching target from among switches lying on the path, obtains a voltage optimization value of the determined switching target switch, selects a switch having the minimum voltage optimization value by changing the switching target switch to another switch in order to obtain the voltage optimization value, and adjusts the voltage through switching of the selected switch.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 21, 2017
    Assignee: KOREA ELECTRIC POWER CORPORATION
    Inventors: Won Namkoong, Bok-Nam Ha, Sung-Woo Lee, In-Yong Seo, Moon-Jong Jang, Dong-Wan Seo, Sang-Ok Kim
  • Publication number: 20160377600
    Abstract: This disclosure provides for a three-dimensional (3D) microenvironment presenting defined physical or mechanical cues that regulate cellular behavior and use of the matrix. The disclosure also provides for devices and methods for screening for optimal combinations of physical and mechanical cues in order to create a microenvironment that can regulate specific cellular behavior such as cell growth, proliferation, migration or differentiation.
    Type: Application
    Filed: June 23, 2016
    Publication date: December 29, 2016
    Inventors: Ssang-Goo Cho, Kyuwon Baek, Gwang-Mo Yang, Chan Kim, Jihye Won, In Yong Seo, Dong-Sik Seo, Chulbae Yoo, Hui-Gwan Goo, Seonho Jang, Song Hee Koo, Sang-Eun Park
  • Publication number: 20160355780
    Abstract: This disclosure provides a three-dimensional (3D) microenvironment presenting defined biochemical and physical cues that regulate cellular behavior and use of the microenvironment. A composition to form the 3D microenvironment is provided by combining one or more natural or synthetic polymeric materials and substrate proteins recombinantly or chemically functionalized with a variety of bioactive peptides such as extracellular matrix-derived or growth factor-derived peptides. The disclosure also provides for devices and methods for screening for optimal combinations of the bioactive motifs in order to create an extracellular microenvironment that can regulate specific cellular behavior such as cell growth, proliferation, migration or differentiation.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 8, 2016
    Inventors: Chan Kim, Kyuwon Baek, Hui-Gwan Goo, Sangjae Lee, Bongjin Hong, Song Hee Koo, In Yong Seo, Seung Hoon Lee, Ji Hyun Lee, Seonho Jang, Dong-Sik Seo
  • Patent number: 9514735
    Abstract: Disclosed herein is a waterproof sound-transmitting sheet, the thickness of which can easily be adjusted and which has a high sound transmitting efficiency and excellent waterproofness, and a method for producing same. The waterproof sound-transmitting sheet, which is attached to a sound hole of a case, includes: a support layer made of a film-shaped porous material and formed in the case; and a waterproofing layer formed on one side of the support layer in the shape of a porous nanoweb in which fine fiber strands are crosswisely layered and exposed to the outside of the case.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: December 6, 2016
    Assignee: Amogreentech Co., Ltd.
    Inventors: In-Yong Seo, Seung-Hoon Lee, Jun-Sik Hwang, Yong-Sik Jung, Kyung-Su Kim
  • Patent number: 9510075
    Abstract: Disclosed herein is a waterproof sound-transmitting sheet having high sound transfer efficiency and excellent water proofing performance and a method for producing same. The waterproof sound-transmitting sheet includes: a sound-transmitting layer made of a polymer material and formed in the shape of a web having a plurality of pores; and a coating layer formed on at least one side of the sound-transmitting layer to block pores existing on the surface of the sound-transmitting layer.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: November 29, 2016
    Assignee: Amogreentech Co., Ltd.
    Inventors: In-Yong Seo, Seung-Hoon Lee, Jun-Sik Hwang, Yong-Sik Jung, Kyung-Su Kim
  • Publication number: 20160229719
    Abstract: Provided is a deionization apparatus which includes: a porous electrode having fine pores; a non-pore ion exchange membrane that is formed in the porous electrode; a counter electrode that is spaced from the non-pore ion exchange membrane and faces the non-pore ion exchange membrane; and a spacer that is located between the porous electrode and the counter electrode, and that has a flow passage through which water to be treated passes.
    Type: Application
    Filed: April 19, 2016
    Publication date: August 11, 2016
    Inventors: In Yong SEO, Jun Sik HWANG
  • Publication number: 20160228823
    Abstract: Provided are an ion-exchange membrane and a filter module using the same. The ion-exchange membrane includes: a porous membrane that is formed by accumulating nanofibers obtained by electrospinning an ion-exchange solution, or a non-pore membrane that is formed by accumulating liquid droplets obtained by electrospraying an ion-exchange solution.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 11, 2016
    Inventors: In Yong SEO, Jun Sik HWANG
  • Publication number: 20160207800
    Abstract: Provided are a deionization composite electrode, a method of manufacturing the deionization composite electrode, and a deionization apparatus using the same. The deionization composite electrode includes: a porous substrate having fine pores; an ion exchange membrane that is formed by electrospraying an ion exchange solution on one surface of the porous substrate; and a conductive film that is formed on the other surface of the porous substrate.
    Type: Application
    Filed: March 30, 2016
    Publication date: July 21, 2016
    Inventors: In Yong SEO, Jun Sik HWANG
  • Publication number: 20160200599
    Abstract: Provided are a deionization flexible composite electrode, a method of manufacturing the deionization flexible composite electrode, and a deionization apparatus using the same. The deionization flexible composite electrode includes: a porous substrate having fine pores; and a conductive film portion that is formed on one surface or both surfaces of the porous substrate. The method of manufacturing a deionization flexible composite electrode comprises: preparing a porous substrate having fine pores; and depositing a conductive material in the porous substrate to thus form a conductive film portion on one surface or both surfaces of the porous substrate.
    Type: Application
    Filed: March 18, 2016
    Publication date: July 14, 2016
    Inventors: In Yong SEO, Jun Sik HWANG
  • Publication number: 20160159667
    Abstract: Provided are a capacitive deionization electrode module, a method of manufacturing the same, and a deionization apparatus using the same. The capacitive deionization electrode module includes: a conductive support that is formed by injecting and fixing carbon-based electrode powders into and to fine pores of a porous substrate; and a coating layer coated on one surface of the conductive support, to thereby implement a current collector for the deionization apparatus having ultra-thin, slim, and excellent flexible features.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 9, 2016
    Inventors: Jun Sik HWANG, In Yong SEO
  • Publication number: 20160136584
    Abstract: Provided are filter media for liquid filters and a method of manufacturing the same, in which a thin filter layer is formed and the content of nanofibers weighs light, by laminating a low weight nanofiber web on a porous nonwoven fabric, and thus a less differential pressure is applied before and after filtering, to thereby increase a pass flow rate. The filter medium includes: a porous support that plays a strength support role; and a nanofiber web that is laminated on one side of the porous support and is made of nanofibers of a polymer material, in which the nanofiber web comprises fine pores of a three-dimensional structure, through which a liquid to be treated passes, wherein content of the nanofibers is less than 5 gsm.
    Type: Application
    Filed: January 19, 2016
    Publication date: May 19, 2016
    Inventors: Jun Sik Hwang, In Yong Seo
  • Patent number: 9293749
    Abstract: Provided is an ultrafine fibrous porous separator with heat resistance and high-strength and a manufacturing method thereof, which enables mass-production of a heat-resistant and high-strength ultrafine fibrous separator by using an air-electrospinning (AES) method, and to a secondary battery using the same. The method of manufacturing a heat-resistant and high-strength ultrafine fibrous porous separator includes the steps of: air-electrospinning a mixed solution of 50 to 70 wt % of a heat-resistant, polymer material and 30 to 50 wt % of a swelling polymer material, to thereby form a porous web of a heat-resistant ultrafine fiber in which the heat-resistant polymer material and the swelling polymer material are consolidated in an ultrafine fibrous form; performing drying to control a solvent and moisture that remain on the surface of the porous web; and performing thermal compression on the dried porous web at a temperature of between 170° C. and 210° C. so as to obtain the separator.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: March 22, 2016
    Assignee: AMOGREENTECH CO., LTD.
    Inventors: In Yong Seo, Byung Gwang Jo, Yong Sik Jung, Yun Hye Kim
  • Patent number: 9220998
    Abstract: Provided is a filter medium for a liquid filter, having a three-dimensional micropore structure of a multi-layered structure using a multilayer nanofiber web that is obtained by performing air-electrospinning, to thus be thin but have high efficiency and long life, a method of manufacturing the filter medium using the multilayer nanofiber web, and a liquid filter using the filter medium. The filter medium for a liquid filter, includes: a nanofiber web that is made by stacking nanofibers that are obtained by air-electrospinning a fibrous polymer material and that have micropores; and a supporter that is inserted and combined onto one surface or in an inner portion of the nanofiber web.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 29, 2015
    Assignee: AMOGREENTECH CO., LTD.
    Inventors: In Yong Seo, Seung Hoon Lee, Yong Sik Jung
  • Publication number: 20150333310
    Abstract: Provides are a porous separator that prevents a short-circuit between two electrodes by using a porous nanofiber web where nanofibers have a core-shell structure, to thereby promote safety and thinning simultaneously. The porous separator includes: a porous nonwoven fabric playing a support role and having micropores; and a porous nanofiber web that is laminated on one side of the porous nonwoven fabric, and plays a role of an adhesive layer and an ion-containing layer when the porous nanofiber web is in close contact with an opposed electrode, wherein a portion of the porous nanofiber web is incorporated in a surface layer of the porous nonwoven fabric, to thus partially block pores of the porous nonwoven fabric and to thereby lower porosity of the porous nonwoven fabric. The porous nanofiber web has nanofibers obtained by spinning a mixture of a swellable polymer and a non-swellable polymer to have a core-shell structure.
    Type: Application
    Filed: June 18, 2015
    Publication date: November 19, 2015
    Inventors: Won Gil CHOI, Ju Hee JANG, Seung Yun RHO, In Yong SEO
  • Publication number: 20150318570
    Abstract: Provided are a polymer electrolyte, a lithium secondary battery using the same, and a manufacturing method thereof, in which a gel polymer electrolyte is formed from a monomer for forming a gel polymer by a rapid polymerization reaction, when using a porous nanofiber web as an electrolyte matrix, and injecting an organic electrolytic solution formed by mixing the gel polymer forming monomer and a polymerization initiator, to induce an addition polymerization reaction, but the porous nanofiber web maintains a web-like shape. The polymer electrolyte includes: a separator made of a porous nanofiber web having a plurality of nanofibers; and a gel polymer portion impregnated in the porous nanofiber web. the gel polymer portion is formed by impregnating an electrolytic solution containing a non-aqueous organic solvent, a lithium salt solute, a gel polymer forming monomer, and a polymerization initiator in the porous nanofiber web and polymerizing the gel polymer forming monomer.
    Type: Application
    Filed: July 13, 2015
    Publication date: November 5, 2015
    Inventors: Won Gil CHOI, Ju Hee JANG, Seung Yun RHO, In Yong SEO
  • Publication number: 20150030828
    Abstract: Provided is matte film including: a film layer that is formed in a nano-web shape by electrospinning a polymer material; an ink layer that is coated on one surface of the film layer: and an adhesive layer that is laminated on the other surface of the film layer through electrospinning. Since the film layer is formed in a nano-web shape so that fiber strands are accumulated, the matte film can be thinly produced and have a non-glossy function of performing scattered reflection of light and a fingerprint-preventive function of making fingerprints imprinted. Further. the surface strength of the matte film can be reinforced.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 29, 2015
    Inventors: Seung Hoon Lee, Yong Sik Jung, Yun Mi So, In Yong Seo
  • Publication number: 20150030797
    Abstract: Provided is an adhesive tape including: a substrate; and an adhesive layer laminated on one surface or both surfaces of the substrate, wherein one or both of the substrate and the adhesive layer are produced in a nano-web form in which fiber strands are captured by a spinning method. Thus, the adhesive tape can be made thin, and an adhesive strength can be improved. In addition, the adhesive tape can be precisely attached on a corrugated surface. When the adhesive tape attached between components is separated from the components, the adhesive layers can be prevented from remaining on the surfaces of the components.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 29, 2015
    Inventors: In Yong Seo, Seung Hoon Lee, Yong Sik Jung, Yun Mi So
  • Publication number: 20150014088
    Abstract: Disclosed herein is a waterproof sound-transmitting sheet having high sound transfer efficiency and excellent water proofing performance and a method for producing same. The waterproof sound-transmitting sheet includes: a sound-transmitting layer made of a polymer material and formed in the shape of a web having a plurality of pores; and a coating layer formed on at least one side of the sound-transmitting layer to block pores existing on the surface of the sound-transmitting layer.
    Type: Application
    Filed: December 11, 2013
    Publication date: January 15, 2015
    Applicant: Amogreentech Co., Ltd.
    Inventors: In-Yong Seo, Seung-Hoon Lee, Jun-Sik Hwang, Yong-Sik Jung, Kyung-Su Kim
  • Publication number: 20150001000
    Abstract: Disclosed herein is a waterproof sound-transmitting sheet having high sound transfer efficiency and excellent water proofing performance and a method of producing same. The waterproof sound-transmitting sheet includes: a film-shaped sound-transmitting layer made of a first polymer material; and a webbed pigment layer formed on at least one side of the sound-transmitting layer and made of a second polymer material containing a pigment having a predetermined color, wherein the second polymer material has a melting point higher than that of the first polymer material.
    Type: Application
    Filed: December 11, 2013
    Publication date: January 1, 2015
    Inventors: In-Yong Seo, Seung-Hoon Lee, Jun-Sik Hwang, Yong-Sik Jung, Kyung-Su Kim
  • Publication number: 20140332310
    Abstract: Disclosed herein is a waterproof sound-transmitting sheet, the thickness of which can easily be adjusted and which has a high sound transmitting efficiency and excellent waterproofness, and a method for producing same. The waterproof sound-transmitting sheet, which is attached to a sound hole of a case, includes: a support layer made of a film-shaped porous material and formed in the case; and a waterproofing layer formed on one side of the support layer in the shape of a porous nanoweb in which fine fiber strands are crosswisely layered and exposed to the outside of the case.
    Type: Application
    Filed: December 11, 2013
    Publication date: November 13, 2014
    Inventors: In-Yong Seo, Seung-Hoon Lee, Jun-Sik Hwang, Young-Sik Jung, Kyung-Su Kim