Patents by Inventor Do Won Ahn
Do Won Ahn 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: 12248947Abstract: A banking processing method according is performed by a processing logic including an application for banking processing implemented on a user terminal and a computer-readable storage medium. The method comprises the steps of: when the application for banking processing is run, searching a hardware security area of the user terminal and confirming the existence of a certificate for confirming an execution history of the application for banking processing; when the existence of the certificate is confirmed, searching the security area and confirming the existence of a token key for identifying whether login information of the user has been set; when the existence of the token key is not confirmed, setting the login information of the user by providing a membership page for setting the login information of the user; and opening an account according to a request of the user whose login information has been set.Type: GrantFiled: March 25, 2019Date of Patent: March 11, 2025Assignee: KAKAOBANK CORP.Inventors: Jung Hee Ko, Tae Ki Ha, Yeun Su Koo, Bo Hyun Oh, Lee Rang Park, Sung Jun Kim, Ji Hong Park, Dong Joon Lee, Jung Min Ahn, Geun Won Mo, Hyeong Jin Jang, Jun Hyuk Yun, Hack Cheon Kim, Eun Jung Gil, Ji Eun Kim, Tae Won Kim, Seung Jin Lee, Do Young Lee
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Patent number: 10340404Abstract: Provided is a multilayer film including inorganic particles having a band gap energy of 3.3 eV or more and inorganic particles having a band gap energy of less than 3.3 eV in different layers. Here, the layer including inorganic particles having band gap energy of 3.3 eV or more is disposed at an upper portion than the layer including inorganic particles having a band gap energy of less than 3.3 eV. Accordingly, the layer including inorganic particles having a band gap energy of 3.3 eV or more is included close to incident light to increase a reflectance in UV region and induce internal reflection, thereby enhancing energy conversion efficiency of a cell. At the same time, the multilayer film may include a lower encapsulant layer or backsheet including inorganic particles having a band gap energy of 3.3 eV or more, thereby increasing reflectances in visible and IR regions and thus reducing a loss of the incident light.Type: GrantFiled: November 8, 2013Date of Patent: July 2, 2019Assignee: LG Chem, Ltd.Inventors: Hyun Cheol Kim, Je Sik Jung, Do Won Ahn
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Patent number: 9379264Abstract: A multilayered film, a back sheet for a photovoltaic cell, methods of manufacturing the film and cell, and a photovoltaic module including the film and cell are provided. The multilayered film includes a resin layer formed on a substrate, and the resin layer contains a fluorine-based polymer and a reactive functional group having an equivalent weight of 30,000 or less. The resin layer containing the fluorine-based polymer has good durability and weatherability and is highly adhesive to the substrate at an interface between the resin layer and the substrate. Also, since a drying process may be performed at a low temperature during manufacture of the multilayered film, manufacturing costs may be reduced, productivity may be increased, and degradation in the quality of products due to thermal deformation or thermal shock may be prevented. The multilayered film may be effectively used as, for example, a back sheet for various photovoltaic modules.Type: GrantFiled: May 9, 2013Date of Patent: June 28, 2016Assignee: LG CHEM, LTD.Inventors: Hyun Cheol Kim, Yoon Kyung Kwon, Hyun Seong Ko, Hyo Soon Park, Do Won Ahn
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Patent number: 9312415Abstract: Provided are a multi-layered sheet, a backsheet for a photovoltaic cell, a method of preparing the same and a photovoltaic module. The multi-layered sheet in which a resin layer including a fluorine-based resin has excellent durability and weather resistance, and also exhibits strong interfacial adhesion to a substrate or polymer coating layer is provided. When a drying process is performed at a low temperature in preparation of the multi-layered sheet, production cost can be reduced, producibility can be increased, and degradation in the quality of a product caused by thermal deformation or thermal shock can be prevented. Such a multi-layered sheet may be effectively used as a backsheet for various photovoltaic cells.Type: GrantFiled: April 29, 2011Date of Patent: April 12, 2016Assignee: LG CHEM, LTD.Inventors: Hyun Cheol Kim, Hyun Seong Ko, Hyo Soon Park, Yoon Kyung Kwon, Do Won Ahn
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Publication number: 20140137926Abstract: Provided is a multilayer film including inorganic particles having a band gap energy of 3.3 eV or more and inorganic particles having a band gap energy of less than 3.3 eV in different layers. Here, the layer including inorganic particles having band gap energy of 3.3 eV or more is disposed at an upper portion than the layer including inorganic particles having a band gap energy of less than 3.3 eV. Accordingly, the layer including inorganic particles having a band gap energy of 3.3 eV or more is included close to incident light to increase a reflectance in UV region and induce internal reflection, thereby enhancing energy conversion efficiency of a cell. At the same time, the multilayer film may include a lower encapsulant layer or backsheet including inorganic particles having a band gap energy of 3.3 eV or more, thereby increasing reflectances in visible and IR regions and thus reducing a loss of the incident light.Type: ApplicationFiled: November 8, 2013Publication date: May 22, 2014Applicant: LG CHEM LTD.Inventors: Hyun Cheol KIM, Je Sik JUNG, Do Won AHN
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Publication number: 20130247984Abstract: A multilayered film, a back sheet for a photovoltaic cell, methods of manufacturing the film and cell, and a photovoltaic module including the film and cell are provided. The multilayered film includes a resin layer formed on a substrate, and the resin layer contains a fluorine-based polymer and a reactive functional group having an equivalent weight of 30,000 or less. The resin layer containing the fluorine-based polymer has good durability and weatherability and is highly adhesive to the substrate at an interface between the resin layer and the substrate. Also, since a drying process may be performed at a low temperature during manufacture of the multilayered film, manufacturing costs may be reduced, productivity may be increased, and degradation in the quality of products due to thermal deformation or thermal shock may be prevented. The multilayered film may be effectively used as, for example, a back sheet for various photovoltaic modules.Type: ApplicationFiled: May 9, 2013Publication date: September 26, 2013Applicant: LG CHEM, LTD.Inventors: Hyun Cheol KIM, Yoon Kyung Kwon, Hyun Seong Ko, Hyo Soon Park, Do Won Ahn
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Publication number: 20130171447Abstract: Provided are a multi-layered sheet, a backsheet for a photovolatic cell, a method of preparing the same and a photovoltaic module. The multi-layered sheet in which a resin layer including a fluorine-based resin has excellent durability and weather resistance, and also exhibits strong interfacial adhesion to a substrate or polymer coating layer is provided. When a drying process is performed at a low temperature in preparation of the multi-layered sheet, production cost can be reduced, producibility can be increased, and degradation in the quality of a product caused by thermal deformation or thermal shock can be prevented. Such a multi-layered sheet may be effectively used as a backsheet for various photovoltaic cells.Type: ApplicationFiled: April 29, 2011Publication date: July 4, 2013Applicant: LG CHEM, LTD.Inventors: Hyun Cheol Kim, Hyun Seong Ko, Hyo Soon Park, Yoon Kyung Kwon, Do Won Ahn