Patents by Inventor Hyung-Chul Choi
Hyung-Chul 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: 20240150331Abstract: The present invention relates to a pidolate salt and malate salt of a compound represented by a formula 1 with an excellent liquid-phase stability, solid-phase stability, water solubility, precipitation stability and hygroscopicity all together as a compound for preventing and treating diseases mediated by an acid pump antagonistic activity, as well as a method for preparing the same.Type: ApplicationFiled: January 16, 2024Publication date: May 9, 2024Applicant: HK INNO.N CORPORATIONInventors: Eun Sun KIM, Min Kyoung LEE, Sung Ah LEE, Kwang Do CHOI, Jae Sun KIM, Hyung Chul YOO
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Patent number: 11912690Abstract: The present invention relates to a pidolate salt and malate salt of a compound represented by a formula 1 with an excellent liquid-phase stability, solid-phase stability, water solubility, precipitation stability and hygroscopicity all together as a compound for preventing and treating diseases mediated by an acid pump antagonistic activity, as well as a method for preparing the same.Type: GrantFiled: November 21, 2022Date of Patent: February 27, 2024Assignee: HK INNO.N CORPORATIONInventors: Eun Sun Kim, Min Kyoung Lee, Sung Ah Lee, Kwang Do Choi, Jae Sun Kim, Hyung Chul Yoo
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Patent number: 11434959Abstract: A propeller shaft for a vehicle in which a tube yoke is connected to a main tube via an adapter and tapered splines are formed at the contact regions between a tube yoke and the main tube to transmit the power output from a transmission to a rear wheel. The tube yoke and the main tube are displaced relative to each other at the tapered splines to break the adapter. The tube yoke and the main tube are thus separated from each other by virtue of the breakage of the adapter.Type: GrantFiled: September 22, 2020Date of Patent: September 6, 2022Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Hyung Chul Choi
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Publication number: 20210332859Abstract: A propeller shaft for a vehicle is provided in which a tube yoke is connected to a main tube via an adapter and tapered splines are formed at the contact regions between a tube yoke and the main tube to transmit the power output from a transmission to a rear wheel. The tube yoke and the main tube are displaced relative to each other at the tapered splines to break the adapter. The tube yoke and the main tube are thus separated from each other by virtue of the breakage of the adapter to efficiently absorb impact energy.Type: ApplicationFiled: September 22, 2020Publication date: October 28, 2021Inventor: Hyung Chul Choi
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Patent number: 7303809Abstract: Substantially transparent electrodes are formed upon a substrate by forming on the substrate, in order, a high index layer, a metallic conductive layer, and a conductive or semi-conductive top layer; and patterning the top layer and the conductive layer, preferably by laser ablation, to form a plurality of discrete electrodes from the metallic conductive layer. Conductors can be attached directly to the top layer, without requiring removal of this layer to expose the metallic conductive layer. The high index layer, conductive layer and top layer can all be formed by sputtering or similar processes which do not require high temperatures, so that plastic substrates can be used. The electrodes can be used, for example, in flat panel displays and in touch screen displays.Type: GrantFiled: September 17, 2001Date of Patent: December 4, 2007Assignee: 3M Innovative Properties CompanyInventors: Hyung-Chul Choi, Yi Zhi Chu, Linda S. Heath, William K. Smyth
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Patent number: 6815056Abstract: An antireflection coating comprises one or more inorganic antireflection layers (typically metal oxide or silica layers) and a polymer layer cured in situ, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 to 700 nm and a thickness of from about 20 to about 200 nm. The polymer layer provides good scratch and fingerprint protection, and also enables the thicknesses of the inorganic antireflection layers to be reduced, thereby reducing the cost of the coating.Type: GrantFiled: September 23, 2002Date of Patent: November 9, 2004Assignee: 3M Innovative Properties CompanyInventors: Hyung-Chul Choi, Robert L. Jones, Pradnya V. Nagarkar, William K. Smyth, Xiaojia Z. Wang
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Patent number: 6761788Abstract: There is described a nanoporous receiver element for use in thermal mass transfer imaging applications. The receiver element comprises a substrate carrying an image-receiving layer comprising particulate material and a binder material. The substrate may comprise a material having a compressibility of at least 1% under a pressure of 1 Newton per mm2 (1 MPa). Optionally, there may be provided, between the substrate and the nanoporous receiving layer, a layer having a thickness of less than about 50 &mgr;m which is comprised entirely of a material having a compressibility of less than about 1% under a pressure of 1 MPa. Alternatively, the substrate may comprise only the material having a compressibility of less than about 1% under a pressure of 1 MPa, provided that the thickness of the substrate does not exceed about 50 &mgr;m.Type: GrantFiled: May 30, 2002Date of Patent: July 13, 2004Assignee: Polaroid CorporationInventors: Anemarie DeYoung, James A. Foley, Alfredo G. Kniazzeh, Edward P. Lindholm, Stephen J. Telfer, William T. Vetterling, Michael S. Viola, Hyung-Chul Choi
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Patent number: 6632513Abstract: An article includes an antireflection composite material, a substrate, and an inorganic layer deposited onto the substrate. The inorganic layer has a thickness of from about 1 nm to about 10 nm. The article includes a polymer layer in contact with the inorganic layer to form an outer surface of the antireflection composite material. The polymer layer has a thickness of from about 70 nm to about 120 nm.Type: GrantFiled: May 15, 2000Date of Patent: October 14, 2003Assignee: 3M Innovative Properties CompanyInventors: Hyung Chul Choi, Edward P. Lindholm, William K. Smyth, Pradnya V. Nagarkar
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Publication number: 20030113518Abstract: There is described a nanoporous receiver element for use in thermal mass transfer imaging applications. The receiver element comprises a substrate carrying an image-receiving layer comprising particulate material and a binder material. The substrate may comprise a material having a compressibility of at least 1% under a pressure of 1 Newton per mm2 (1 MPa). Optionally, there may be provided, between the substrate and the nanoporous receiving layer, a layer having a thickness of less than about 50 &mgr;m which is comprised entirely of a material having a compressibility of less than about 1% under a pressure of 1 MPa. Alternatively, the substrate may comprise only the material having a compressibility of less than about 1% under a pressure of 1 MPa, provided that the thickness of the substrate does not exceed about 50 &mgr;m.Type: ApplicationFiled: May 30, 2002Publication date: June 19, 2003Inventors: Anemarie DeYoung, James A. Foley, Alfredo G. Kniazzeh, Edward P. Lindholm, Stephen J. Telfer, William T. Vetterling, Michael S. Viola, Hyung-Chul Choi
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Publication number: 20030021972Abstract: An antireflection coating comprises one or more inorganic antireflection layers (typically metal oxide or silica layers) and a polymer layer cured in situ, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 to 700 nm and a thickness of from about 20 to about 200 nm. The polymer layer provides good scratch and fingerprint protection, and also enables the thicknesses of the inorganic antireflection layers to be reduced, thereby reducing the cost of the coating.Type: ApplicationFiled: September 23, 2002Publication date: January 30, 2003Inventors: Hyung-Chul Choi, Robert L. Jones, Pradnya V. Nagarkar, William K. Smyth, Xiaojia Z. Wang
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Patent number: 6493015Abstract: A thermal transfer recording system wherein an area of a thermal transfer imaging medium is heated imagewise while in contact only with a thermal printing head and the imaged area of the thermal transfer recording medium subsequently transferred to a receiver material.Type: GrantFiled: March 29, 2001Date of Patent: December 10, 2002Assignee: Polaroid CorporationInventors: Jayprakash C. Bhatt, Hyung-Chul Choi, F. Richard Cottrell, Anemarie De Young
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Publication number: 20020155265Abstract: An antireflection coating comprises one or more inorganic antireflection layers (typically metal oxide or silica layers) and a polymer layer cured in situ, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 to 700 nm and a thickness of from about 20 to about 200 nm. The polymer layer provides good scratch and fingerprint protection, and also enables the thicknesses of the inorganic antireflection layers to be reduced, thereby reducing the cost of the coating.Type: ApplicationFiled: February 19, 1998Publication date: October 24, 2002Inventors: HYUNG-CHUL CHOI, ROBERT L. JONES, PRADNYA V NAGARKAR, WILLIAM K SMYTH, XIAOJIA Z WANG, YEE HO CHIA
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Patent number: 6464822Abstract: An antireflection coating includes one or more inorganic antireflection layers (typically metal oxide or silica layers) and a polymer layer cured in situ, the polymer layer having a refractive index not greater than about 1.53 over the wavelength range of 400 to 700 nm and a thickness of from about 20 to about 200 nm. The polymer layer provides good scratch and fingerprint protection, and also enables the thicknesses of the inorganic antireflection layers to be reduced, thereby reducing the cost of the coating.Type: GrantFiled: February 19, 1998Date of Patent: October 15, 2002Assignee: 3M Innovative Properties CompanyInventors: Hyung-Chul Choi, Robert L. Jones, Pradnya V. Nagarkar, William K. Smyth, Xiaojia Z. Wang, Yee Ho Chia
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Publication number: 20020140798Abstract: A thermal transfer recording system wherein an area of a thermal transfer imaging medium is heated imagewise while in contact only with a thermal printing head and the imaged area of the thermal transfer recording medium subsequently transferred to a receiver material.Type: ApplicationFiled: March 29, 2001Publication date: October 3, 2002Inventors: Jayprakash C. Bhatt, Hyung-Chul Choi, F. Richard Cottrell, Anemarie DeYoung
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Publication number: 20020114901Abstract: Substantially transparent electrodes are formed upon a substrate by forming on the substrate, in order, a high index layer, a metallic conductive layer, and a conductive or semi-conductive top layer; and patterning the top layer and the conductive layer, preferably by laser ablation, to form a plurality of discrete electrodes from the metallic conductive layer. Conductors can be attached directly to the top layer, without requiring removal of this layer to expose the metallic conductive layer. The high index layer, conductive layer and top layer can all be formed by sputtering or similar processes which do not require high temperatures, so that plastic substrates can be used. The electrodes can be used, for example, in flat panel displays and in touch screen displays.Type: ApplicationFiled: September 17, 2001Publication date: August 22, 2002Inventors: Hyung-Chul Choi, Yi Zhi Chu, Linda S. Heath, William K. Smyth
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Patent number: 6379509Abstract: Substantially transparent electrodes are formed upon a substrate by forming on the substrate, in order, a high index layer, a metallic conductive layer, and a conductive or semi-conductive top layer; and patterning the top layer and the conductive layer, preferably by laser ablation, to form a plurality of discrete electrodes from the metallic conductive layer. Conductors can be attached directly to the top layer, without requiring removal of this layer to expose the metallic conductive layer. The high index layer, conductive layer and top layer can all be formed by sputtering or similar processes which do not require high temperatures, so that plastic substrates can be used. The electrodes can be used, for example, in flat panel displays and in touch screen displays.Type: GrantFiled: January 20, 1998Date of Patent: April 30, 2002Assignee: 3M Innovative Properties CompanyInventors: Hyung-Chul Choi, Yi Zhu Chu, Linda S. Heath, William K. Smyth
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Patent number: 6379788Abstract: An antireflection film comprises a transparent substrate carrying on one surface a polymeric antireflection layer, this antireflection layer having a refractive index at least about 0.02 lower than that of the substrate and being formed from a cured polymer comprising repeating units derived from a fluoroalkene, an alkyl acrylate or methacrylate and a polyfunctional acrylate monomer. No inorganic antireflection layer is present between the substrate and the polymeric antireflection layer.Type: GrantFiled: November 20, 1998Date of Patent: April 30, 2002Assignee: 3M Innovative Properties CompanyInventors: Hyung-Chul Choi, Robert L. Jones, Pradnya V. Nagarkar, William K. Smyth
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Publication number: 20010050222Abstract: Substantially transparent electrodes are formed upon a substrate by forming on the substrate, in order, a high index layer, a metallic conductive layer, and a conductive or semi-conductive top layer; and patterning the top layer and the conductive layer, preferably by laser ablation, to form a plurality of discrete electrodes from the metallic conductive layer. Conductors can be attached directly to the top layer, without requiring removal of this layer to expose the metallic conductive layer. The high index layer, conductive layer and top layer can all be formed by sputtering or similar processes which do not require high temperatures, so that plastic substrates can be used. The electrodes can be used, for example, in flat panel displays and in touch screen displays.Type: ApplicationFiled: January 20, 1998Publication date: December 13, 2001Inventors: HYUNG-CHUL CHOI, YI ZHI CHU, LINDA S HEATH, WILLIAM K SMYTH
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Publication number: 20010049024Abstract: An antireflection film comprises a transparent substrate carrying on one surface a polymeric antireflection layer, this antireflection layer having a refractive index at least about 0.02 lower than that of the substrate and being formed from a cured polymer comprising repeating units derived from a fluoroalkene, an alkyl acrylate or methacrylate and a polyfunctional acrylate monomer. No inorganic antireflection layer is present between the substrate and the polymeric antireflection layer.Type: ApplicationFiled: November 20, 1998Publication date: December 6, 2001Inventors: HYUNG-CHUL CHOI, ROBERT L. JONES, PRADNYA V. NAGARKAR, WILLIAM K. SMYTH