Patents by Inventor Seung-Ho Choi
Seung-Ho 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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Publication number: 20140227809Abstract: A method of forming nanocrystals and a method of manufacturing an organic light-emitting display apparatus that includes a metal compound thin film having the nanocrystals. The method of forming nanocrystals includes forming a metal compound thin film under a first pressure by using a reactive sputtering process, and forming the nanocrystals in the metal compound thin film under a second pressure that is lower than the first pressure by using the reactive sputtering process.Type: ApplicationFiled: August 9, 2013Publication date: August 14, 2014Inventors: Myung-Soo Huh, Cheol-Lae Roh, Seung-Ho Choi
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Patent number: 8802488Abstract: A substrate depositing system and a method of using a substrate depositing system. A substrate depositing system includes a load-lock chamber for loading and unloading a substrate, at least one transfer chamber connected to the load-lock chamber and including a substrate transfer device configured to vertically transfer the substrate, and a pair of depositing chambers connected to opposite sides of the at least one transfer chamber and including a depositing source and a pair of substrate fixing devices, the substrate transfer device including a pair of substrate installing members.Type: GrantFiled: July 8, 2011Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Jeong-Ho Yi, Suk-Won Jung, Seung-Ho Choi
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Patent number: 8802489Abstract: A device for depositing an organic material includes a substrate; a mask having an opening portion and a shield portion; a fixing member for fixing the substrate and the mask to each other; a deposition source comprising a plurality of nozzles arranged in a first direction and configured to spray the organic material; and a plurality of shield plates near the plurality of nozzles on the deposition source. An angle ? between the substrate and a line extended from a distal end of one of the nozzles to a center of a distal end of a corresponding one of the shield plates is greater than or equal to a taper angle ? of the shield portion of the mask.Type: GrantFiled: July 20, 2011Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Seung-Ho Choi, Hyun Choi, Sung-Gon Kim, Min-Gyu Seo
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Patent number: 8778115Abstract: A method of efficiently manufacturing a large-sized mask is disclosed. In one embodiment, the method includes: 1) providing a first mask member comprising i) a first pattern unit having a plurality of slits, ii) a first buffer unit spaced apart from the first pattern unit, and iii) a first bonding unit interconnecting the first pattern unit and the first buffer unit and 2) providing a second mask member comprising i) a second pattern unit having a plurality of slits, ii) a second buffer unit spaced apart from the second pattern unit, and iii) a second bonding unit interconnecting the second pattern unit and the second buffer unit. The method may further include contacting the first bonding unit and the second bonding unit; and connecting the first mask member to the second mask member while tensile forces are applied to the first mask member and the second mask member.Type: GrantFiled: December 15, 2010Date of Patent: July 15, 2014Assignee: Samsung Display Co., Ltd.Inventors: Choong-Ho Lee, Yoon-Chan Oh, Seung-Ho Choi, Suk-Won Jung, Jung-Soo Rhee
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Publication number: 20140168024Abstract: Embodiments of the invention provide a dielectric waveguide antenna including a dielectric waveguide transmitting a signal applied from a power feeder, a dielectric waveguide radiator radiating the signal transmitted from the dielectric waveguide to the air through a first aperture, and a matching unit formed in a portion of the dielectric waveguide and controlling a serial reactance and a parallel reactance to thereby perform impedance matching between the dielectric waveguide radiator and the air, in order to reduce reflection generated in the first aperture during the radiation of the signal through the first aperture. Reflection in the aperture is reduced through the matching unit having various structures, thereby making it possible to improve characteristics of the dielectric waveguide antenna.Type: ApplicationFiled: February 20, 2014Publication date: June 19, 2014Applicants: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jung Aun LEE, Myeong Woo HAN, Chul Gyun PARK, Moonil KIM, Seung Ho CHOI, Kook Joo LEE
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Patent number: 8749434Abstract: A dielectric resonator antenna is disclosed that includes a multi-layer substrate on which a plurality of insulating layers and conductor layers are alternately stacked. The dielectric resonator antenna also includes a first conductor plate that has an opening part on the upper portion of the top insulating layer of the multi-layer substrate and a second conductor plate that is formed on the lower portion of the bottom insulating layer from the first conductor plate. The insulating layer is formed with at least two stacked layers and is disposed at a position corresponding to the opening part. The dielectric resonator antenna also includes a plurality of first metal via holes, a feeding part and a matching substrate that is stacked on the opening part and is stacked with at least one insulating layer.Type: GrantFiled: July 22, 2010Date of Patent: June 10, 2014Assignees: Samsung Electro-Mechanics Co., Ltd., Korea University Research and Business FoundationInventors: Myeong Woo Han, Jung Aun Lee, Chul Gyun Park, Seung Ho Choi, Moonil Kim, Kook Joo Lee
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Patent number: 8692731Abstract: Disclosed herein is a dielectric waveguide antenna including: a dielectric waveguide transmitting a signal applied from a power feeder; a dielectric waveguide radiator radiating the signal transmitted from the dielectric waveguide to the air through a first aperture; and a matching unit formed in a portion of the dielectric waveguide and controlling a serial reactance and a parallel reactance to thereby perform impedance matching between the dielectric waveguide radiator and the air, in order to reduce reflection generated in the first aperture during the radiation of the signal through the first aperture. Reflection in the aperture is reduced through the matching unit having various structures, thereby making it possible to improve characteristics of the dielectric waveguide antenna.Type: GrantFiled: April 21, 2011Date of Patent: April 8, 2014Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jung Aun Lee, Myeong Woo Han, Chul Gyun Park, Moonil Kim, Seung Ho Choi, Kook Joo Lee
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Publication number: 20130171248Abstract: A composition for oral delivery of a poorly absorbed drug is disclosed. The composition includes the drug, an enhancer for increasing absorption of the drug through the intestinal mucosa, a promoter, which further increases the absorption of the drug in the presence of the enhancer, and optionally a protector for protecting the drug from physical or chemical decomposition or inactivation in the gastrointestinal tract. Illustrative enhancers include sucrose fatty acid esters, and illustrative promoters include aminosugars and amino acid derivatives, such as poly(amino acids). Illustrative protectors include methylcellulose, poly(vinyl alcohol), and poly(vinyl pyrrolidone).Type: ApplicationFiled: September 14, 2012Publication date: July 4, 2013Applicant: PROCARRIER, INC.Inventors: Seung-Ho Choi, Seong-Wan Cho
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Patent number: 8382966Abstract: A sputtering system is disclosed.Type: GrantFiled: June 28, 2010Date of Patent: February 26, 2013Assignee: Samsung Display Co., Ltd.Inventors: Seung-Ho Choi, Suk-Won Jung, Young-Mook Choi, Hyun-Keun Song
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Patent number: 8303989Abstract: The present invention provides compositions and methods for increasing absorption of antibacterial agents, particularly third generation cephalosporin antibacterial agents, in oral dosage solid and/or suspension forms. Specifically, the composition is comprised of a biopolymer that is preferably swellable and/or mucoadhesive, a antimicrobial agent, and a cationic binding agent contained within the biopolymer such that the binding agent is ionically bound or complexed to at least one member selected from the group consisting of the biopolymer and the antimicrobial agent.Type: GrantFiled: April 16, 2009Date of Patent: November 6, 2012Inventors: Seung-Ho Choi, Jeoung-Soo Lee, Dennis Keith
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Publication number: 20120206311Abstract: Disclosed herein is a dielectric waveguide antenna including: a dielectric waveguide transmitting a signal applied from a power feeder; a dielectric waveguide radiator radiating the signal transmitted from the dielectric waveguide to the air through a first aperture; and a matching unit formed in a portion of the dielectric waveguide and controlling a serial reactance and a parallel reactance to thereby perform impedance matching between the dielectric waveguide radiator and the air, in order to reduce reflection generated in the first aperture during the radiation of the signal through the first aperture. Reflection in the aperture is reduced through the matching unit having various structures, thereby making it possible to improve characteristics of the dielectric waveguide antenna.Type: ApplicationFiled: April 21, 2011Publication date: August 16, 2012Applicants: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jung Aun LEE, Myeong Woo HAN, Chul Gyun PARK, Moonil KIM, Seung Ho CHOI, Kook Joo LEE
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Publication number: 20120064728Abstract: A substrate depositing system and a method of using a substrate depositing system. A substrate depositing system includes a load-lock chamber for loading and unloading a substrate, at least one transfer chamber connected to the load-lock chamber and including a substrate transfer device configured to vertically transfer the substrate, and a pair of depositing chambers connected to opposite sides of the at least one transfer chamber and including a depositing source and a pair of substrate fixing devices, the substrate transfer device including a pair of substrate installing members.Type: ApplicationFiled: July 8, 2011Publication date: March 15, 2012Inventors: Jeong-Ho Yi, Suk-Won Jung, Seung-Ho Choi
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Publication number: 20120064663Abstract: A device for depositing an organic material includes a substrate; a mask having an opening portion and a shield portion; a fixing member for fixing the substrate and the mask to each other; a deposition source comprising a plurality of nozzles arranged in a first direction and configured to spray the organic material; and a plurality of shield plates near the plurality of nozzles on the deposition source. An angle ? between the substrate and a line extended from a distal end of one of the nozzles to a center of a distal end of a corresponding one of the shield plates is greater than or equal to a taper angle ? of the shield portion of the mask.Type: ApplicationFiled: July 20, 2011Publication date: March 15, 2012Inventors: Seung-Ho Choi, Hyun Choi, Sung-Gon Kim, Min-Gyu Seo
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Publication number: 20110248891Abstract: Disclosed herein is a dielectric resonator antenna using a matching substrate in order to improve a bandwidth. The dielectric resonator antenna includes: a dielectric resonator body part that is embedded in a multi-layer substrate and has an opening part on the upper portion thereof; and at least one matching substrate that is stacked on the opening part and includes an an insulating layer having a dielectric constant smaller than that of the multi-layer substrate but larger than that of air, thereby making it possible to improve the bandwidth without adjusting the size of the dielectric resonator body part and to prevent loss and change in the radiation pattern due to the substrate mode.Type: ApplicationFiled: July 22, 2010Publication date: October 13, 2011Applicants: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Myeong Woo HAN, Jung Aun LEE, Chul Gyun PARK, Seung Ho CHOI, Moonil KIM, Kook Joo LEE
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Publication number: 20110168553Abstract: A sputtering system is disclosed.Type: ApplicationFiled: June 28, 2010Publication date: July 14, 2011Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Seung-Ho Choi, Suk-Won Jung, Young-Mook Choi, Hyun-Keun Song
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Publication number: 20110146575Abstract: An evaporation source is disclosed. In one embodiment, the evaporation source includes: i) a crucible being open on one side thereof and configured to store a deposition material and ii) a nozzle section located on the open side of the crucible and comprising a plurality of nozzles, wherein each of the nozzles has a sidewall configured to spray the deposition material therethrough, wherein the side wall has an inclined portion. The evaporation source also includes i) a heater configured to heat the crucible and ii) a housing configured to accommodate the crucible, the nozzle section, and the heater, wherein the nozzle section has a maximum spray angle less than about 60°.Type: ApplicationFiled: December 17, 2010Publication date: June 23, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Seung-Ho Choi, Suk-Won Jung, Seung-Ho Myoung, Cheol-Lae Roh
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Publication number: 20110139365Abstract: Provided is a mask for an evaporation apparatus, which includes a first division mask and a second division mask. The first and second division masks are directly bonded to each other by welding, thereby forming welding portion between the first and the second division masks. A method and apparatus for manufacturing a mask for evaporation are also provided. The division masks according to the embodiment do not use subframes, and are directly bonded to one another by welding, so that a shadow effect does not occur. The apparatus for manufacturing a mask for evaporation includes a work stage, a clamp fixing a first division mask and a second division mask to the work stage, and a laser welding part welding the first division mask to the second division mask. The apparatus may further include a first roller leading the laser welding part and a second roller following the laser welding part.Type: ApplicationFiled: December 9, 2010Publication date: June 16, 2011Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Joon-Hyung Kim, Young-Geun Cho, Eui-Shin Shin, Jong-Heon Kim, Seung-Ho Choi, Cheol-Lae Roh, Chang-Mog Jo, Jae-Seok Park
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Publication number: 20110139357Abstract: A method of efficiently manufacturing a large-sized mask is disclosed. In one embodiment, the method includes: 1) providing a first mask member comprising i) a first pattern unit having a plurality of slits, ii) a first buffer unit spaced apart from the first pattern unit, and iii) a first bonding unit interconnecting the first pattern unit and the first buffer unit and 2) providing a second mask member comprising i) a second pattern unit having a plurality of slits, ii) a second buffer unit spaced apart from the second pattern unit, and iii) a second bonding unit interconnecting the second pattern unit and the second buffer unit. The method may further include contacting the first bonding unit and the second bonding unit; and connecting the first mask member to the second mask member while tensile forces are applied to the first mask member and the second mask member.Type: ApplicationFiled: December 15, 2010Publication date: June 16, 2011Applicant: Samsung Mobile Display Co. Ltd.Inventors: Choong-Ho Lee, Yoon-Chan Oh, Seung-Ho Choi, Suk-Won Jung, Jung-Soo Rhee
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Publication number: 20110129595Abstract: A deposition source includes a first deposition source section, the first deposition source section being configured to store a deposition material, a second deposition source section, the second deposition source section being separate from the first deposition source section and being configured to store the deposition material, the first and second deposition source sections being configured to alternately supply the deposition material while heating or cooling the deposition material, a feed section configured to receive evaporated deposition material from the first and second deposition source sections, and a nozzle section configured to receive the deposition material from the feed section.Type: ApplicationFiled: November 29, 2010Publication date: June 2, 2011Inventors: Suk-Won Jung, Seung-Ho Choi, Kang-Il Lee, Hyun-Keun Song, Cheol-Lae Roh
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Publication number: 20110045029Abstract: A composition for oral delivery of a poorly absorbed drug is disclosed. The composition includes the drug, an enhancer for increasing absorption of the drug through the intestinal mucosa, a promoter, which further increases the absorption of the drug in the presence of the enhancer, and optionally a protector for protecting the drug from physical or chemical decomposition or inactivation in the gastrointestinal tract. Illustrative enhancers include sucrose fatty acid esters, and illustrative promoters include aminosugars and amino acid derivatives, such as poly(amino acids). Illustrative protectors include methylcellulose, poly(vinyl alcohol), and poly(vinyl pyrrolidone).Type: ApplicationFiled: February 23, 2010Publication date: February 24, 2011Applicant: ProCarrier, Inc.Inventors: Seung-Ho Choi, Seong-Wan Cho