Patents by Inventor Jun Keun CHO
Jun Keun CHO 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: 11974442Abstract: A semiconductor device includes a stack structure including first electrodes and insulating layers alternately stacked on each other, a second electrode passing through the stack structure, and variable resistance patterns each interposed between the second electrode and a corresponding one of the first electrodes. Each of the first electrodes includes a first sidewall facing the second electrode, and each of the insulating layers includes a second sidewall facing the second electrode. At least a part of each of the variable resistance patterns protrudes farther towards the second electrode than the second sidewall.Type: GrantFiled: April 19, 2021Date of Patent: April 30, 2024Assignee: SK hynix Inc.Inventors: Hyung Keun Kim, Jun Ku Ahn, Jun Young Lim, Sung Lae Cho
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Patent number: 11646425Abstract: A battery having an electrode assembly comprising a cathode having a cathode collector coated, partially or entirely, with a cathode active material, an anode having a nano-web layer on both sides of an anode collector coated, partially or entirely, with an anode active material, and a separation membrane interposed between the cathode and the anode; an electrolytic solution; and an exterior material which encapsulates the electrolyte solution and the electrode assembly together. Since the battery has a porous nano-web layer, even if the temperature inside the battery increases to cause shrinkage or melting of the separation membrane, a contact between the cathode and the anode is prevented such that ignition and/or explosion of the battery does not occur, ion exchange is not disturbed such that the battery performance does not deteriorate, and the nano-web layer is not molten or released towards the separation membrane even at high temperatures.Type: GrantFiled: April 20, 2018Date of Patent: May 9, 2023Assignee: Amogreentech Co., Ltd.Inventors: Jun Keun Cho, Kyung Pyo Hong, Dong Woo Kim, Seung Gon Park, Seung Yun Roh
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Publication number: 20220347609Abstract: Provided is a filter medium. A filter medium according to an embodiment of the present invention comprises: a first porous support body which has been electrostatically treated; and a nanofiber web which is disposed on one surface of the first support body and formed by accumulating nanofibers. Accordingly, excellent air filtering efficiency is obtained even for fine dust of PM 2.5 or below, and furthermore, deterioration in air filtering efficiency may be prevented or minimized even when usage is extended for a long period of time. Therefore, the filter medium and the composite filter according to an embodiment of the present invention can be widely utilized as media of filters for various air filtering devices.Type: ApplicationFiled: July 22, 2020Publication date: November 3, 2022Applicant: AMOGREENTECH CO., LTD.Inventors: Seoung Hoon LEE, Jun Keun CHO, Chan KIM, Kyung Su KIM, Seon HO JANG, Yun Mi SO
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Patent number: 11280470Abstract: An air permeable cap for a vehicle may include: a cover part formed in a cylindrical shape with a closed end part, and having a plurality of guide ribs radially formed on an inner circumferential surface thereof; a foam part inserted and installed in the cover part so as to be contacted with the guide ribs, and having a ventilation hole formed on one side thereof; a membrane part installed between the foam part and the cover part, and configured to block a flow of water through the ventilation hole and allow a flow of air through the ventilation hole; and an adhesion retention part coupled in a concave-convex shape to retain an adhesion force between the foam part and the cover part.Type: GrantFiled: March 26, 2021Date of Patent: March 22, 2022Assignee: HYUNDAI MOBIS CO., LTD.Inventors: Jin Won Lee, Young Ho Lee, Jun Keun Cho, Kyoung Taek Park, Hyoung Joo Kim, Sang Yeop Shim, Sung Pil Cho
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Publication number: 20210302002Abstract: Provided is a ventilation member for a vehicle lamp. The ventilation member includes a nanofiber membrane, a composite adhesive layer stacked on one surface of the nanofiber membrane, and a ventilation structure provided in a central portion of the composite adhesive layer and in contact with the nanofiber membrane. The composite adhesive layer includes an acrylic adhesive layer in contact with the nanofiber membrane and a silicone-based adhesive layer provided on one surface of the acrylic adhesive layer. The acrylic adhesive layer is in contact with the nanofiber membrane, the acrylic adhesive layer is infiltrated into the nanofiber membrane to a depth of 30 ?m or more. The ventilation member for a vehicle lamp has a water pressure resistance of 1.0 bar or more.Type: ApplicationFiled: March 25, 2021Publication date: September 30, 2021Applicants: HYUNDAI MOBIS CO., LTD., AMOGREENTECH CO., LTD.Inventors: Jin Won LEE, Young Ho LEE, Jun Keun CHO, Kyoung Taek PARK, Hyoung Joo KIM, Sang Yeop SHIM, Sung Pil CHO
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Publication number: 20210302005Abstract: An air permeable cap for a vehicle may include: a cover part formed in a cylindrical shape with a closed end part, and having a plurality of guide ribs radially formed on an inner circumferential surface thereof; a foam part inserted and installed in the cover part so as to be contacted with the guide ribs, and having a ventilation hole formed on one side thereof; a membrane part installed between the foam part and the cover part, and configured to block a flow of water through the ventilation hole and allow a flow of air through the ventilation hole; and an adhesion retention part coupled in a concave-convex shape to retain an adhesion force between the foam part and the cover part.Type: ApplicationFiled: March 26, 2021Publication date: September 30, 2021Applicants: HYUNDAI MOBIS CO., LTD., AMOGREENTECH CO., LTD.Inventors: Jin Won LEE, Young Ho LEE, Jun Keun CHO, Kyoung Taek PARK, Hyoung Joo KIM, Sang Yeop SHIM, Sung Pil CHO
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Patent number: 11103817Abstract: Provided is a cartridge filter using nanofiber composite fiber yarn, the cartridge filter including: a core having a plurality of holes through which a liquid passes; and a filter medium wound around the core to collect an object to be filtered contained in the liquid, wherein the filter medium comprises composite fiber yarn in which a nanofiber web which is produced by accumulating nanofibers produced by an electrospinning method is laminated to a porous nonwoven fabric, to thus provide excellent durability and improved filtration performance.Type: GrantFiled: November 17, 2016Date of Patent: August 31, 2021Assignee: AMOGREENTECH CO., LTD.Inventors: Chan Kim, Seung Hoon Lee, Seon Ho Jang, Jun Keun Cho, Jong Su Seok, Yun Mi So
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Publication number: 20210028464Abstract: A battery having an electrode assembly comprising a cathode having a cathode collector coated, partially or entirely, with a cathode active material, an anode having a nano-web layer on both sides of an anode collector coated, partially or entirely, with an anode active material, and a separation membrane interposed between the cathode and the anode; an electrolytic solution; and an exterior material which encapsulates the electrolyte solution and the electrode assembly together. Since the battery has a porous nano-web layer, even if the temperature inside the battery increases to cause shrinkage or melting of the separation membrane, a contact between the cathode and the anode is prevented such that ignition and/or explosion of the battery does not occur, ion exchange is not disturbed such that the battery performance does not deteriorate, and the nano-web layer is not molten or released towards the separation membrane even at high temperatures.Type: ApplicationFiled: April 20, 2018Publication date: January 28, 2021Applicant: AMOGREENTECH CO., LTD.Inventors: Jun Keun CHO, Kyung Pyo HONG, Dong Woo KIM, Seung Gon PARK, Seung Yun ROH
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Patent number: 10743638Abstract: Provided is a beauty care pack including a release film and a beauty care sheet which is separably attached to the release film, wherein the beauty care sheet comprises: a support; a fiber layer which is laminated on the support and in which water-soluble polymers are formed in the form of a nanofiber web; a moisturizing layer which is laminated on the fiber layer and consists of the water-soluble polymers and moisturizing materials; and a beauty care layer which is laminated on the moisturizing layer and in which the water-soluble polymers and functional materials are formed in the form of a nanofiber web, such that active ingredients are absorbed into the skin while being dissolved by moisture.Type: GrantFiled: June 7, 2017Date of Patent: August 18, 2020Assignee: AMOLIFESCIENCE CO., LTD.Inventors: Chan Kim, Seung Hoon Lee, Kyu Won Baek, Song Hee Koo, Ji Hyun Lee, Jun Keun Cho, Yong Sik Jung, Hyun Soo Park
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Publication number: 20190001247Abstract: Provided is a cartridge filter using nanofiber composite fiber yarn, the cartridge filter including: a core having a plurality of holes through which a liquid passes; and a filter medium wound around the core to collect an object to be filtered contained in the liquid, wherein the filter medium comprises composite fiber yarn in which a nanofiber web which is produced by accumulating nanofibers produced by an electrospinning method is laminated to a porous nonwoven fabric, to thus provide excellent durability and improved filtration performance.Type: ApplicationFiled: November 17, 2016Publication date: January 3, 2019Inventors: Chan KIM, Seung Hoon LEE, Seon Ho JANG, Jun Keun CHO, Jong Su SEOK, Yun Mi SO
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Publication number: 20170340090Abstract: Provided is a beauty care pack including a release film and a beauty care sheet which is separably attached to the release film, wherein the beauty care sheet comprises: a support; a fiber layer which is laminated on the support and in which water-soluble polymers are formed in the form of a nanofiber web; a moisturizing layer which is laminated on the fiber layer and consists of the water-soluble polymers and moisturizing materials; and a beauty care layer which is laminated on the moisturizing layer and in which the water-soluble polymers and functional materials are formed in the form of a nanofiber web, such that active ingredients are absorbed into the skin while being dissolved by moisture.Type: ApplicationFiled: June 7, 2017Publication date: November 30, 2017Inventors: Chan KIM, Seung Hoon LEE, Kyu Won BAEK, Song Hee KOO, Ji Hyun LEE, Jun Keun CHO, Yong Sik JUNG, Hyun Soo PARK