Patents by Inventor Gyu Hong MIN
Gyu Hong MIN 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: 11524264Abstract: An aerator device and a filter system including the same are provided. The aerator device includes: a housing having an inner cavity defined therein, the housing including at least one sidewall and an upper surface connected to the at least one sidewall; a first partition formed within the inner cavity and extending from an upper end to a lower end to define a first cavity and a second cavity; and a second partition formed within the inner cavity between the first partition and a first sidewall of the at least one sidewall and extending from an upper end to a lower end to define a first chamber and a second chamber of the second cavity, and the housing includes an inlet opening communicating with the first cavity and an outlet opening communicating with the second chamber, and the second chamber gradually narrows towards the upper surface of the housing.Type: GrantFiled: December 31, 2014Date of Patent: December 13, 2022Assignees: LOTTE CHEMICAL CORPORATION, LOTTE ADVANCED MATERIALS CO., LTD.Inventors: Ji Hye Kim, Fufang Zha, Young Lim Koo, Gyu Hong Min, Hyoung Wook Ahn, Byung Kook Hwang
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Patent number: 10828607Abstract: An aerator device, a filter system including an aerator device, and a method of aerating a filter using an aerator device. An aerator device includes a housing having an interior cavity; a first plate in the interior cavity and defining a first cavity portion and a second cavity portion thereof, the first plate being spaced apart from a top wall of the housing to define a first opening through which the first cavity portion and the second cavity portion are in communication; and a second plate defining a first chamber and a second chamber of the second cavity portion, the first chamber and the second chamber being in communication with each other below a lower end of the second plate, the housing having an inlet opening in communication with the first cavity portion, and an outlet opening through the top wall and in communication with the second chamber.Type: GrantFiled: March 15, 2013Date of Patent: November 10, 2020Assignee: Lotte Chemical CorporationInventors: Gyu Hong Min, Jin Min Kim, Young Lim Koo, Byung Kook Hwang, Daniel Eumine Suk, Jong Sang Park, Fufang Zha, Jihye Kim
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Patent number: 10766001Abstract: An aerator apparatus including a housing having an inner cavity formed therein, which includes at least one side wall and an upper surface portion connected to the at least one side wall. Additionally, the aerator apparatus includes a first partition wall formed inside the inner cavity and extends from a first lower end to a first upper end to form a first cavity portion and a second cavity portion. Furthermore, a second partition wall is formed between the first partition wall and the first side wall inside the inner cavity, and is extended from a second upper end to a second lower end to form a first chamber and a second chamber in the second cavity portion.Type: GrantFiled: September 30, 2016Date of Patent: September 8, 2020Assignee: LOTTE CHEMICAL CORPORATIONInventors: Young Lim Koo, Hyung Wook Ahn, Gyu Hong Min
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Patent number: 10159937Abstract: The present invention relates to a pressure hollow fiber membrane module, including: a housing in which a raw water inlet, a concentrate water outlet, and a treated water outlet are formed; an inner flow path that is formed in the central portion of the housing; a plurality of hollow fiber membranes that are arranged around the inner flow path; a treated water collection unit that communicates with the inner flow path and the hollow fiber membrane; a first opening/closing unit that opens and closes an open end of the inner flow path; and a second opening/closing unit that opens and closes an open end of the hollow fiber membrane.Type: GrantFiled: October 31, 2013Date of Patent: December 25, 2018Assignee: Lotte Advanced Materials Co., Ltd.Inventors: Pyung Kyu Park, Gyu Hong Min, Jong Sang Park
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Patent number: 10155202Abstract: A hollow fiber membrane restraining apparatus comprising: first and second horizontal wall parts having slits therethrough, wherein the inner walls face one another; and two vertical wall parts erected facing both end parts of the first horizontal wall parts in a horizontal axis direction, wherein a mat stacking part is formed and stacked on the first horizontal wall part such that end parts of mats on which hollow fiber membranes are arranged in a row can be aligned, and the second horizontal wall part is locked onto the vertical wall parts by pushing and restraining the mat stacking part; a header apparatus comprising the same; a hollow fiber membrane module; and a method for manufacturing a hollow fiber membrane module are provided.Type: GrantFiled: September 29, 2014Date of Patent: December 18, 2018Assignees: LOTTE ADVANCED MATERIALS CO. LTD., LOTTE CHEMICAL CORPORATIONInventors: Eu Mine Suk, Young Soo Son, Dong Hyun Kim, Gyu Hong Min
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Publication number: 20180272282Abstract: An aerator apparatus including a housing having an inner cavity formed therein, which includes at least one side wall and an upper surface portion connected to the at least one side wall. Additionally, the aerator apparatus includes a first partition wall formed inside the inner cavity and extends from a first lower end to a first upper end to form a first cavity portion and a second cavity portion. Furthermore, a second partition wall is formed between the first partition wall and the first side wall inside the inner cavity, and is extended from a second upper end to a second lower end to form a first chamber and a second chamber in the second cavity portion.Type: ApplicationFiled: September 30, 2016Publication date: September 27, 2018Applicant: LOTTE CHEMICAL CORPORATIONInventors: Young Lim Koo, Hyung Wook Ahn, Gyu Hong Min
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Patent number: 10005039Abstract: A system for cleaning a membrane of the present invention includes: a first membrane filtration tank which includes a membrane and an aerator, filters inflow raw water by membrane filtration, and discharges treated water and water to be treated, respectively; a pressure gauge for measuring a transmembrane pressure and a flow meter for measuring a permeation flux which are provided at a treated water discharge line of the first membrane filtration tank; and a controller which calculates a water permeability recovery rate by calculating the water permeability from the differential pressure measured at the pressure gauge and the permeation flux measured at the flow meter, predicts a membrane contamination degree from the calculated water permeability recovery rate, and controls a back-pulsing interval and an intermittent aeration interval.Type: GrantFiled: August 30, 2013Date of Patent: June 26, 2018Assignee: LOTTE CHEMICAL CORPORATIONInventors: Pyung Kyu Park, Tai Kwang Yoon, Jae Seok Jo, Gyu Hong Min, Jong Sang Park, Byung Kook Hwang
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Patent number: 9675936Abstract: A hollow fiber membrane module including at least two types of hollow fiber membranes having different inner diameters, comprising first hollow fiber membranes and second hollow fiber membranes, and the equation |PA?P0|?|PB?P0| where P0 is an initial pressure applied to upper open ends of the first and second hollow fiber membranes, and PA and PB are respective pressures at lower open ends of the first and second hollow fiber membranes.Type: GrantFiled: December 27, 2013Date of Patent: June 13, 2017Assignees: Lotte Chemical Corporation, Lotte Advanced Materials Co., Ltd.Inventors: Gyu Hong Min, Fufang Zha
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Publication number: 20160220959Abstract: A hollow fibre membrane restraining apparatus comprising: first and second horizontal wall parts having slits therethrough, wherein the inner walls face one another; and two vertical wall parts erected facing both end parts of the first horizontal wall parts in a horizontal axis direction, wherein a mat stacking part is formed and stacked on the first horizontal wall part such that end parts of mats on which hollow fibre membranes are arranged in a row can be aligned, and the second horizontal wall part is locked onto the vertical wall parts by pushing and restraining the mat stacking part; a header apparatus comprising the same; a hollow fibre membrane module; and a method for manufacturing a hollow fibre membrane module are provided.Type: ApplicationFiled: September 29, 2014Publication date: August 4, 2016Inventors: Eu Mine Suk, Young Soo Son, Dong Hyun Kim, Gyu Hong Min
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Patent number: 9278317Abstract: A module of hollow fiber membranes is re-configured to break up and rearrange a skein into multiple miniskeins each having no more than 250 fibers, all lower miniheaders of the miniskeins being slidably held for vertical movement in vertical slots in an aerator box. Upon shrinkage of the fibers, the lower miniheaders rise in the box. Each miniskein has from 2-12 planar ordered arrays in which the fibers are adhesively secured, preferably without potting the lower miniheaders. The lower ends of the fibers are dead-ended and lower miniheaders are positioned sequentially, transverse to the longitudinal axes of the upper header and the aerator box; its upper miniheader is potted in a choice of configurations.Type: GrantFiled: December 5, 2012Date of Patent: March 8, 2016Assignee: LOTTE CHEMICAL CORPORATIONInventors: Daniel Eumine Suk, Jin Min Kim, Byung-Kook Hwang, Gyu Hong Min
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Publication number: 20150352499Abstract: The present invention relates to a pressure hollow fiber membrane module, including: a housing in which a raw water inlet, a concentrate water outlet, and a treated water outlet are formed; an inner flow path that is formed in the central portion of the housing; a plurality of hollow fiber membranes that are arranged around the inner flow path; a treated water collection unit that communicates with the inner flow path and the hollow fiber membrane; a first opening/closing unit that opens and closes an open end of the inner flow path; and a second opening/closing unit that opens and closes an open end of the hollow fiber membrane.Type: ApplicationFiled: October 31, 2013Publication date: December 10, 2015Applicant: Cheil Industries Inc.Inventors: Pyung Kyu PARK, Gyu Hong MIN, Jong Sang PARK
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Publication number: 20150306544Abstract: A system for cleaning a membrane of the present invention includes: a first membrane filtration tank which includes a membrane and an aerator, filters inflow raw water by membrane filtration, and discharges treated water and water to be treated, respectively; a pressure gauge for measuring a transmembrane pressure and a flow meter for measuring a permeation flux which are provided at a treated water discharge line of the first membrane filtration tank; and a controller which calculates a water permeability recovery rate by calculating the water permeability from the differential pressure measured at the pressure gauge and the permeation flux measured at the flow meter, predicts a membrane contamination degree from the calculated water permeability recovery rate, and controls a back-pulsing interval and an intermittent aeration interval.Type: ApplicationFiled: August 30, 2013Publication date: October 29, 2015Applicant: CHEIL INDUSTRIES INC.Inventors: Pyung Kyu Park, Tai Kwang Yoon, Jae Seok Jo, Gyu Hong Min, Jong Sang Park, Byung Kook Hwang
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Publication number: 20150182919Abstract: An aerator device and a filter system including the same are provided. The aerator device includes: a housing having an inner cavity defined therein, the housing including at least one sidewall and an upper surface connected to the at least one sidewall; a first partition formed within the inner cavity and extending from an upper end to a lower end to define a first cavity and a second cavity; and a second partition formed within the inner cavity between the first partition and a first sidewall of the at least one sidewall and extending from an upper end to a lower end to define a first chamber and a second chamber of the second cavity, and the housing includes an inlet opening communicating with the first cavity and an outlet opening communicating with the second chamber, and the second chamber gradually narrows towards the upper surface of the housing.Type: ApplicationFiled: December 31, 2014Publication date: July 2, 2015Inventors: Ji Hye KIM, Fufang ZHA, Young Lim KOO, Gyu Hong MIN, Hyoung Wook AHN, Byung Kook HWANG
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Publication number: 20140183123Abstract: A hollow fiber membrane module including at least two types of hollow fiber membranes having different inner diameters, comprising first hollow fiber membranes and second hollow fiber membranes, and the equation |PA?P0?|PB?P0| where P0 is an initial pressure applied to upper open ends of the first and second hollow fiber membranes, and PA and PB are respective pressures at lower open ends of the first and second hollow fiber membranes.Type: ApplicationFiled: December 27, 2013Publication date: July 3, 2014Applicant: CHEIL INDUSTRIES INC.Inventors: Gyu Hong MIN, Fufang ZHA
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Publication number: 20140183132Abstract: A separation membrane cleaning system and a separation membrane cleaning method. A separation membrane cleaning system includes: a membrane filtration bath; a treated water storage bath configured to store treated water produced by the membrane filtration bath and discharge the treated water during reverse cleaning or chemical cleaning; a chemical storage bath configured to supply a chemical; a first pipe fluidically communicated between the membrane filtration bath and the treated water storage bath to transport the treated water produced by the membrane filtration bath to the treated water storage bath, and a fourth pipe fluidically communicated with the first pipe to transport the chemical to the membrane filtration bath; a second pipe to transport the treated water from the treated water storage bath; and a third pipe fluidically communicated with the fourth pipe to transport the chemical from the chemical storage bath.Type: ApplicationFiled: December 27, 2013Publication date: July 3, 2014Applicant: CHEIL INDUSTRIES INC.Inventors: Pyung Kyu PARK, Tai Kwang YOON, Chang Min PARK, Byung Kook HWANG, Jae Seok JO, Sung Ho HONG, Gyu Hong MIN, Jong Sang PARK
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Publication number: 20140076806Abstract: An aerator device, a filter system including an aerator device, and a method of aerating a filter using an aerator device. An aerator device includes a housing having an interior cavity; a first plate in the interior cavity and defining a first cavity portion and a second cavity portion thereof, the first plate being spaced apart from a top wall of the housing to define a first opening through which the first cavity portion and the second cavity portion are in communication; and a second plate defining a first chamber and a second chamber of the second cavity portion, the first chamber and the second chamber being in communication with each other below a lower end of the second plate, the housing having an inlet opening in communication with the first cavity portion, and an outlet opening through the top wall and in communication with the second chamber.Type: ApplicationFiled: March 15, 2013Publication date: March 20, 2014Applicant: CHEIL INDUSTRIES INC.Inventors: Gyu Hong MIN, Jin Min KIM, Young Lim KOO, Byung Kook HWANG, Daniel Eumine SUK, Jong Sang PARK, Fufang ZHA, Jihye KIM