Patents by Inventor O Chang Kwon
O Chang Kwon 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: 11916238Abstract: An electrode including a current collector; and an electrode active material layer disposed on at least one surface of the current collector is disclosed. The electrode active material layer includes a lower layer region facing the current collector, and an upper layer region facing the lower layer region and extended to the surface of the electrode active material layer. The lower layer region includes a first active material and a first non-rubbery binder and is free from a rubbery binder. The upper layer region includes a second active material, a second non-rubbery binder, and a rubbery binder. The rubbery binder is a hydrogenated nitrile butadiene rubber (H-NBR). Each of the first non-rubbery binder and the second non-rubbery binder includes a polyvinylidene fluoride (PVDF)-based polymer, and the weight ratio of the second non-rubbery binder to the rubbery binder in the upper layer region is 1:0.03-1:0.07.Type: GrantFiled: March 10, 2022Date of Patent: February 27, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Il-Hong Kim, O-Jong Kwon, Hee-Chang Youn, Yo-Han Kwon, Min-Chul Jang
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Patent number: 11670273Abstract: A sound absorption device and a method of manufacturing the same are provided. The sound absorption device includes a sound absorbing panel including first elements, second elements, third elements, and fourth elements arranged in different directions, wherein a cross-section of at least one of the first through fourth elements has a distorted circular shape, a distorted polygonal shape, or a distorted elliptical shape.Type: GrantFiled: July 24, 2020Date of Patent: June 6, 2023Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Myoung-Woon Moon, O-Chang Kwon
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Patent number: 11551655Abstract: A sound absorption structure and a method of manufacturing the same are provided. The sound absorption structure includes a first sound absorption layer comprising first elements of which longitudinal directions are misaligned in a thickness direction of the sound absorption structure, the first sound absorption layer having a first internal filling density and absorbing sound waves of a first reactance frequency; and a second sound absorption layer disposed on the first sound absorption layer, having a second internal filling density different from the first internal filling density, and absorbing sound waves of a second reactance frequency different from the first reactance frequency.Type: GrantFiled: December 11, 2019Date of Patent: January 10, 2023Assignee: Korea Institute of Science and TechnologyInventors: Myoung-Woon Moon, O Chang Kwon, Young A Lee
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Patent number: 10933354Abstract: The present disclosure relates to a rotating type foreign substance collection equipment, and according to an embodiment of the present disclosure, there is an effect in separating and collecting foreign substances such as oil from foreign substance-fluid mixtures at high speeds by the separation membrane that traps foreign substances such as oil that float in water while allowing sea water or river water to pass through and be discharged.Type: GrantFiled: September 10, 2018Date of Patent: March 2, 2021Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Myoung-Woon Moon, Kwang Ryeol Lee, Seohyun Cho, Young A Lee, O Chang Kwon
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Publication number: 20210043182Abstract: A sound absorption device and a method of manufacturing the same are provided. The sound absorption device includes a sound absorbing panel including first elements, second elements, third elements, and fourth elements arranged in different directions, wherein a cross-section of at least one of the first through fourth elements has a distorted circular shape, a distorted polygonal shape, or a distorted elliptical shape.Type: ApplicationFiled: July 24, 2020Publication date: February 11, 2021Inventors: Myoung-Woon MOON, O-Chang KWON
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Patent number: 10914045Abstract: Disclosed is a hydrophilic material oil fence having a double-porous mesh. The hydrophilic material oil fence having the double-porous mesh includes a floating body floating on a water surface, and a skirt coupled to an upper portion and a lower portion of the floating body and made of a hydrophilic material through which a hydrophilic fluid selectively passes. A mesh hole size of a partial region of the skirt and a mesh hole size of the other region of the skirt are different.Type: GrantFiled: October 23, 2019Date of Patent: February 9, 2021Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Seong Jin Kim, Myoung Woon Moon, O Chang Kwon, Seo Hyun Cho
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Patent number: 10774491Abstract: An oil fence including an oil filtration membrane includes: a floating member floating on a surface of water; and an oil filtration membrane connected to the floating member, allowing the water to pass therethrough, and rapidly collecting materials such as oil or a hazardous and noxious substance included in the water.Type: GrantFiled: December 27, 2017Date of Patent: September 15, 2020Assignee: Korea Institute of Science and TechnologyInventors: Heon Ju Lee, Myoung-Woon Moon, Do Hyun Kim, Tae Jun Ko, O Chang Kwon
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Publication number: 20200193952Abstract: A sound absorption structure and a method of manufacturing the same are provided. The sound absorption structure includes a first sound absorption layer comprising first elements of which longitudinal directions are misaligned in a thickness direction of the sound absorption structure, the first sound absorption layer having a first internal filling density and absorbing sound waves of a first reactance frequency; and a second sound absorption layer disposed on the first sound absorption layer, having a second internal filling density different from the first internal filling density, and absorbing sound waves of a second reactance frequency2 different from the first reactance frequency.Type: ApplicationFiled: December 11, 2019Publication date: June 18, 2020Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Myoung-Woon MOON, O Chang KWON, Young A LEE
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Publication number: 20200123726Abstract: Disclosed is a hydrophilic material oil fence having a double-porous mesh. The hydrophilic material oil fence having the double-porous mesh includes a floating body floating on a water surface, and a skirt coupled to an upper portion and a lower portion of the floating body and made of a hydrophilic material through which a hydrophilic fluid selectively passes. A mesh hole size of a partial region of the skirt and a mesh hole size of the other region of the skirt are different.Type: ApplicationFiled: October 23, 2019Publication date: April 23, 2020Inventors: Seong Jin KIM, Myoung Woon MOON, O Chang KWON, Seo Hyun CHO
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Patent number: 10400409Abstract: An oil-collecting apparatus includes: a body including an inlet through which a liquid is introduced, a first outlet through which purified water generated from the liquid introduced through the inlet is discharged, and a second outlet through which materials collected from the liquid are discharged; and a filter arranged at the first outlet of the body and generating the purified water by collecting the materials included in the liquid by allowing the liquid introduced through the inlet to pass therethrough.Type: GrantFiled: December 27, 2017Date of Patent: September 3, 2019Assignee: Korea Institute of Science and TechnologyInventors: Heon Ju Lee, Myoung-Woon Moon, O Chang Kwon, Do Hyun Kim, Tae Jun Ko, Ho-Young Kim, Hyungmin Park, Kyu Hwan Oh
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Publication number: 20190257050Abstract: The present disclosure relates to a fence having a hydrophilic material, and according to an embodiment of the present disclosure, there is an effect in collecting oil or hazardous & noxious substances quickly and efficiently while minimizing the pressure caused by water, by forming the fence from a material that allows water to penetrate while disallowing oil to penetrate. Additionally, there is an effect in preventing oil spill phenomena caused by damage or unbalance of the fence by reducing the water pressure applied to the fence due to water penetration even when a strong water pressure acts on the fence, for example, strong tidal currents occur and the fence is towed at high speeds to collect oil.Type: ApplicationFiled: September 10, 2018Publication date: August 22, 2019Inventors: Myoung-Woon MOON, Kwang Ryeol LEE, O Chang KWON, Seohyun CHO, Young A LEE
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Publication number: 20190255467Abstract: The present disclosure relates to a rotating type foreign substance collection equipment, and according to an embodiment of the present disclosure, there is an effect in separating and collecting foreign substances such as oil from foreign substance-fluid mixtures at high speeds by the separation membrane that traps foreign substances such as oil that float in water while allowing sea water or river water to pass through and be discharged.Type: ApplicationFiled: September 10, 2018Publication date: August 22, 2019Inventors: Myoung-Woon MOON, Kwang Ryeol LEE, Seohyun CHO, Young A LEE, O Chang KWON
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Publication number: 20190161368Abstract: Provided are spilled oil collecting apparatus and method. The spilled oil collecting apparatus includes: a filter portion made of a porous substrate with hydrophilicity and having an open upper portion so as to collect oil; a frame portion provided at an upper end of the filter portion to support the filter portion; and a handle portion connected to the frame portion. According to the spilled oil collecting apparatus and method, it is possible to collect, separate, and store simultaneously spilled oil spilled from rivers or seas by using a porous substrate having hydrophilicity and optimize immediate collection of spilled oil by maximizing oil collection efficiency and minimizing labour force in an oil collecting process.Type: ApplicationFiled: November 8, 2018Publication date: May 30, 2019Inventors: Myoung Woon MOON, Young A LEE, Tae Jun KO, Min Sung KIM, O Chang KWON, Kyu Hwan OH
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Publication number: 20180339451Abstract: Provided are a nozzle for a three-dimensional (3D) printer to extrude a 3D printing material, wherein the nozzle includes a discharge port in a bottom surface of the nozzle and configured to extrude the 3D printing material, and the discharge port is eccentrically located with respect to a center of the bottom surface; and a 3D printer including a nozzle unit including the nozzle.Type: ApplicationFiled: May 23, 2018Publication date: November 29, 2018Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Myoung-Woon Moon, Wonjin Jo, O Chang Kwon
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Publication number: 20180179717Abstract: An oil-collecting apparatus includes: a body including an inlet through which a liquid is introduced, a first outlet through which purified water generated from the liquid introduced through the inlet is discharged, and a second outlet through which materials collected from the liquid are discharged; and a filter arranged at the first outlet of the body and generating the purified water by collecting the materials included in the liquid by allowing the liquid introduced through the inlet to pass therethrough.Type: ApplicationFiled: December 27, 2017Publication date: June 28, 2018Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Heon Ju Lee, Myoung-Woon Moon, O Chang Kwon, Do Hyun Kim, Tae Jun Ko, Ho-Young Kim, Hyungmin Park, Kyu Hwan Oh
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Publication number: 20180179718Abstract: An oil fence including an oil filtration membrane includes: a floating member floating on a surface of water; and an oil filtration membrane connected to the floating member, allowing the water to pass therethrough, and rapidly collecting materials such as oil or a hazardous and noxious substance included in the water.Type: ApplicationFiled: December 27, 2017Publication date: June 28, 2018Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Heon Ju LEE, Myoung-Woon MOON, Do Hyun KIM, Tae Jun KO, O Chang KWON