Patents by Inventor Chul June Choi
Chul June Choi 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: 10201920Abstract: The present invention provides an apparatus for forming a polymer, comprising: a chamber having a predetermined pressure and storing a molten polymer resin; a foaming agent injection portion connected to the chamber and supplying a foaming agent, which is supplied from the outside, into the chamber by forming a pressure equal to or higher than the pressure inside the chamber; and a polymer backflow prevention portion provided at the foaming agent injection portion, and through which the supplied foaming agent passes so as to increase a contact surface area with the polymer resin, thereby preventing the backflow of the polymer resin.Type: GrantFiled: December 12, 2013Date of Patent: February 12, 2019Assignee: LG HAUSYS, LTD.Inventors: Byung Joo Jeon, Eung Kee Lee, Chul June Choi, Myeong Hee Kim, Ji Mun Kim, Seung Wook Ji
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Patent number: 10081744Abstract: Disclosed herein is an adhesive composition for an insulator, the adhesive composition including a copolymer formed by using at least one type of phenol-based monomer; at least one type of monomer that is polymerizable by an alkali salt; and at least one type of monomer that is polymerizable by a bisulfate.Type: GrantFiled: October 28, 2014Date of Patent: September 25, 2018Assignee: LG HAUSYS, LTD.Inventors: Ji-Mun Kim, Eung-Kee Lee, Chul-June Choi, Myeong-Hee Kim, Seung-Wook Ji, Byung-Joo Jeon
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Patent number: 9741891Abstract: An EVA sheet for a photovoltaic module comprising microparticles, the main component of which is an ethylene-vinyl acetate resin is provided. A method for manufacturing an EVA sheet for a photovoltaic module comprising the steps of: (a) preparing microparticles, the main component of which is an ethylene-vinyl acetate resin; (b) dispersing the microparticles; and (c) sintering the dispersed microparticles is provided.Type: GrantFiled: December 21, 2012Date of Patent: August 22, 2017Assignee: LG HAUSYS, LTD.Inventors: Ji Yeon Kim, Jong Hun Lee, Chul-June Choi
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Publication number: 20170191264Abstract: Provided is a brick thermal insulation composite including a surface layer and an internal layer, wherein the surface layer is a brick material, the internal layer is formed with a heat curing foam insulation material, and the heat curing foam insulation material includes a foam resin and a fibrous reinforcement material.Type: ApplicationFiled: May 26, 2015Publication date: July 6, 2017Inventors: Myeong-Hee KIM, Eung-Kee LEE, Chul-June CHOI, Min-Hee LEE, Ji-Mun KIM, Seung-Wook JI, Byung-Joo JEON, Gun-Pyo PARK, Kwon-Bin SONG
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Patent number: 9650782Abstract: Disclosed are an exterior insulation mortar for cold weather which may prevent freezing and improve strength at temperatures below 0° C., and an exterior insulation system using the same.Type: GrantFiled: December 3, 2013Date of Patent: May 16, 2017Assignee: LG HAUSYS, LTD.Inventors: Seung Wook Ji, Eung Kee Lee, Chul June Choi, Myeong Hee Kim, Ji Mun Kim, Byung Joo Jeon
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Publication number: 20170043930Abstract: Provided are a foam tray for food packaging including a laminated structure of a first foaming layer having an internal moisture absorbent property, and a second foaming layer having an external moisture barrier property, wherein the first foaming layer and the second foaming layer include a biodegradable polymer, and a method for manufacturing the same.Type: ApplicationFiled: April 1, 2015Publication date: February 16, 2017Inventors: Byung-Joo JEON, Eung-Kee LEE, Chul-June CHOI, Myeong-Hee KIM, Ji-Mun KIM, Seung-Wook JI, Gun-Pyo PARK, Kwon-Bin SONG
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Publication number: 20160319167Abstract: Disclosed herein is an adhesive composition for an insulator, the adhesive composition including a copolymer formed by using at least one type of phenol-based monomer; at least one type of monomer that is polymerizable by an alkali salt; and at least one type of monomer that is polymerizable by a bisulfate.Type: ApplicationFiled: October 28, 2014Publication date: November 3, 2016Inventors: Ji-Mun KIM, Eung-Kee LEE, Chul-June CHOI, Myeong-Hee KIM, Seung-Wook JI, Byung-Joo JEON
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Publication number: 20160208065Abstract: Provided is a polyisocyanurate foam formed by polymerizing and foaming a composition comprising: a polyol-based compound, an isocyanate-based compound and a solid flame retardant, wherein a viscosity of the polyol-based compound is 1,000 cps to 100,000 cps at 25° C. In addition, provided is a preparation method for a polyisocyanurate foam, comprising: (a) mixing and stirring a polyol-based compound having a viscosity of 1,000 cps to 100,000 cps at 25° C. and a solid flame retardant; and (b) mixing and stirring the mixture obtained from step (a) with an isocyanate-based compound to polymerize and foam polyisocyanurate.Type: ApplicationFiled: October 1, 2014Publication date: July 21, 2016Applicant: LG HAUSYS, LTD.Inventors: Ji-Mun KIM, Eung-Kee LEE, Chul-June CHOI, Myeong-Hee KIM, Seung-Wook JI, Gun-Pyo PARK
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Publication number: 20160185020Abstract: The present invention provides an apparatus for forming a polymer, comprising: a chamber having a predetermined pressure and storing a molten polymer resin; a foaming agent injection portion connected to the chamber and supplying a foaming agent, which is supplied from the outside, into the chamber by forming a pressure equal to or higher than the pressure inside the chamber; and a polymer backflow prevention portion provided at the foaming agent injection portion, and through which the supplied foaming agent passes so as to increase a contact surface area with the polymer resin, thereby preventing the backflow of the polymer resin.Type: ApplicationFiled: December 12, 2013Publication date: June 30, 2016Inventors: Byung Joo JEON, Eung Kee Lee, Chul June CHOI, Myeong Hee KIM, Ji Mun KIM, Seung Wook JI
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Publication number: 20150376896Abstract: Disclosed are an exterior insulation mortar for cold weather which may prevent freezing and improve strength at temperatures below 0° C., and an exterior insulation system using the same.Type: ApplicationFiled: December 3, 2013Publication date: December 31, 2015Inventors: Seung Wook JI, Eung Kee LEE, Chul June CHOI, Myeong Hee KIM, Ji Mun KIM, Byung Joo JEON
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Patent number: 9169649Abstract: Provided herein is a sunlight generated power device having an upper fixing frame, a lower fixing frame, a main link, and a sub link, which together form a four bar link, and an actuator. The power device may be used to form a photovoltaic module installed at a building, bridge, park, and the like. Solar cell panels positioned on the power device are easily adjustable to enhance photovoltaic efficiency. The power device may also be constructed to display a luxurious image by providing an elegant appearance.Type: GrantFiled: September 3, 2010Date of Patent: October 27, 2015Assignee: LG HAUSYS, LTD.Inventors: Chul June Choi, Dong Hun No, Hyun Young Cho
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Publication number: 20150013760Abstract: An EVA sheet for a photovoltaic module comprising microparticles, the main component of which is an ethylene-vinyl acetate resin is provided. A method for manufacturing an EVA sheet for a photovoltaic module comprising the steps of: (a) preparing microparticles, the main component of which is an ethylene-vinyl acetate resin; (b) dispersing the microparticles; and (c) sintering the dispersed microparticles is provided.Type: ApplicationFiled: December 21, 2012Publication date: January 15, 2015Inventors: Ji Yeon Kim, Jong Hun Lee, Chul-June Choi
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Patent number: 8835519Abstract: Disclosed is a method for preparing a sheet for a sealing member of a solar cell, wherein the sheet has significantly low thermal shrinkage and high flexibility, and a superior capability of discharging bubbles during the manufacture of a solar cell module. The method for preparing a sheet for a sealing member of a solar cell according to the present invention comprises the following steps: (a) preparing a thermal adhesive resin having an olefin-based resin as a main component; (b) pulverizing the thermal adhesive resin and dispersing the resin powder; and (c) heating the thermal adhesive resin powder at a temperature lower than the melting temperature of the resin powder so as to prepare a sheet having a plurality of voids.Type: GrantFiled: November 22, 2011Date of Patent: September 16, 2014Assignee: LG Hausys, Ltd.Inventors: Jong-Hun Lee, Chul-June Choi, Sung-Yong Kang, Min-Hee Lee
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Patent number: 8678069Abstract: The present invention relates to a building integrated photovoltaic (BIPV) system, and more specifically, to a photovoltaic blind window having a photovoltaic cell applied to an electric blind. The photovoltaic blind window of the invention comprises: a multilayered glass composed of a pair of plate glass sheets that are connected to each other with a spacer to form an inner space between the plate glass sheets; an electric blind placed in the inner space of the multilayered glass, the blind having a plurality of slats elevating or tilting by the rotation of a drive motor; a plurality of photovoltaic cells arranged on at least one side of the slat; and a storage battery for storing electricity that is generated by the photovoltaic cells.Type: GrantFiled: January 12, 2011Date of Patent: March 25, 2014Assignee: LG Hausys, Ltd.Inventors: Chul June Choi, Dong Hun No
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Publication number: 20130245146Abstract: Disclosed is a method for preparing a sheet for a sealing member of a solar cell, wherein the sheet has significantly low thermal shrinkage and high flexibility, and a superior capability of discharging bubbles during the manufacture of a solar cell module. The method for preparing a sheet for a sealing member of a solar cell according to the present invention comprises the following steps: (a) preparing a thermal adhesive resin having an olefin-based resin as a main component; (b) pulverizing the thermal adhesive resin and dispersing the resin powder; and (c) heating the thermal adhesive resin powder at a temperature lower than the melting temperature of the resin powder so as to prepare a sheet having a plurality of voids.Type: ApplicationFiled: November 22, 2011Publication date: September 19, 2013Applicant: LG HAUSYS, LTD.Inventors: Jong-Hun Lee, Chul-June Choi, Sung-Young Kang, Min-Hee Lee
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Publication number: 20120152469Abstract: The present invention relates to a building integrated photovoltaic (BIPV) system, and more specifically, to a photovoltaic blind window having a photovoltaic cell applied to an electric blind. The photovoltaic blind window of the invention comprises: a multilayered glass composed of a pair of plate glass sheets that are connected to each other with a spacer to form an inner space between the plate glass sheets; an electric blind placed in the inner space of the multilayered glass, the blind having a plurality of slats elevating or tilting by the rotation of a drive motor; a plurality of photovoltaic cells arranged on at least one side of the slat; and a storage battery for storing electricity that is generated by the photovoltaic cells.Type: ApplicationFiled: January 12, 2011Publication date: June 21, 2012Applicant: LG HAUSYS, LTD.Inventors: Chul June Choi, Dong Hun No
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Publication number: 20120138549Abstract: Power generation using sunlight comprising: an upper fixing-frame rotatably installed at an upper-shaft attached to a cell-guardrail; a lower fixing-frame rotatably installed at a lower-shaft parallel to a lower-part of the upper-shaft; a main-link including one end installed at the upper-shaft, the other end installed at the lower-shaft; a sub-link including one end installed at the upper fixing-frame, the other end installed at the lower fixing-frame; and an actuator including one end installed at the lower-shaft. A four-bar link is formed with the upper fixing-frame, the lower fixing-frame, the main-link, and the sub-link. A photovoltaic module generating power from sunlight installed at a building, bridge, park, and the like as a result of the configuration above is contemplated herein. The solar cell panel has an angle facing sunlight that can be easily adjusted to enhance photovoltaic efficiency. The construction can display a luxurious image by providing an elegant appearance.Type: ApplicationFiled: September 3, 2010Publication date: June 7, 2012Applicant: LG HAUSYS, LTD.Inventors: Chul June Choi, Dong Hun No, Hyun Young Cho