Patents by Inventor Chang Ho Ahn
Chang Ho 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: 11967734Abstract: An electrode assembly includes a radical unit in which electrodes and separators are alternately stacked, the radical unit having a structure in which one electrode is stacked at the uppermost end. An auxiliary unit is provided with a separation sheet disposed at the uppermost end side of the radical unit. The separation sheet includes a separation part disposed at the uppermost end side of the radical unit and a side surface protection part connected to each of side surfaces of the separation part and folded to contact a side portion of the radical unit to cover the side portion of the radical unit.Type: GrantFiled: November 27, 2019Date of Patent: April 23, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Kwan Bo Lee, Chang Bum Ahn, Seung Ho Na, Su Ho Lee, Hak Soo Lee
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Publication number: 20240094248Abstract: An electrically conductive contact pin which prevents a fatigue fracture in a void part by distributing stress concentration in the void part is provided. The electrically conductive contact pin includes: a first surface; a second surface facing the first surface; a lateral surface for connecting the first surface and the second surface; and a void part formed inside the electrically conductive contact pin by passing through the first surface and the second surface along the length direction of the electrically conductive contact pin. The void part includes: a center void part; and an end void part communicating with the center void part and extending toward an end side of the electrically conductive contact pin, wherein the width of the end void part is narrower than the width of the center void part.Type: ApplicationFiled: January 27, 2022Publication date: March 21, 2024Applicant: POINT ENGINEERING CO., LTD.Inventors: Bum Mo AHN, Seung Ho PARK, Chang Hee HONG
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Patent number: 10696548Abstract: Disclosed is a method of preparing an oxide for hydrogen storage, including (a) mixing and calcining vanadium oxide and titanium oxide to provide an oxide, (b) impregnating the oxide obtained in step (a) with a noble metal precursor aqueous solution, and (c) subjecting the oxide obtained in step (b) to heat treatment in a reducing atmosphere, wherein the oxide obtained in step (a) has the composition of Chemical Formula (1) below and is composed of a single-phase TiO2 crystal phase: V1-xTixO2,??Chemical Formula (1) where 0.05?x?0.95.Type: GrantFiled: October 11, 2018Date of Patent: June 30, 2020Assignee: Korea Research Institute of Standards and ScienceInventors: Seung Wook Baek, Jung Hyun Kim, Chang Ho Ahn, Mee Kyung Kim, Gyo Ri Park, Sun Woong Song, Ki Chae Jung
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Publication number: 20190300363Abstract: Disclosed is a method of preparing an oxide for hydrogen storage, including a) mixing and calcining vanadium oxide and titanium oxide, b) impregnating the oxide obtained in step a) with a noble metal precursor aqueous solution, and c) subjecting the oxide obtained in step b) to heat treatment in a reducing atmosphere, wherein the oxide obtained in step a) has the composition of Chemical Formula 1 below and is composed of a single-phase TiO2 crystal phase: V1-xTixO2??[Chemical Formula 1] (in Chemical Formula 1, 0.05?x?0.95).Type: ApplicationFiled: October 11, 2018Publication date: October 3, 2019Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCEInventors: Seung Wook Baek, Jung Hyun Kim, Chang Ho Ahn, Mee Kyung Kim, Gyo Ri Park, Sun Woong Song, Ki Chae Jung
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Patent number: 10307490Abstract: Described is a lipid nanoparticle composition that includes a macromolecule conjugated to a polymer and a targeting agent. The composition can include a therapeutic agent. The therapeutic agent can be an antisense oligonucleotide (ASO). Exemplary ASOs are targeted to a portion of a nucleic acid encoding Akt-1, and which modulates the expression of Akt-1; or targeted to a portion of a nucleic acid encoding HIF-1, and which modulates the expression of HIF-1. Also described is a lipid nanoparticle composition that includes a macromolecule conjugated to a polymer and a therapeutic agent that is an ASO such as an ASO targeted to a portion of a nucleic acid encoding Akt-1, and which modulates the expression of Akt-1 or an ASO targeted to a portion of a nucleic acid encoding HIF-1, and which modulates the expression of HIF-1. Pharmaceutical formulations, methods of making the lipid nanoparticles, and methods of using the lipid nanoparticles, for example for treating cancers, are also disclosed.Type: GrantFiled: May 23, 2013Date of Patent: June 4, 2019Assignee: The Ohio State UniversityInventors: Robert J. Lee, Young Bok Lee, Deog Joong Kim, Chang Ho Ahn
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Patent number: 10052321Abstract: The present invention relates to storage stable nanoparticulate compositions of piperazine compounds. The pharmaceutical compositions comprising the nanoparticulate compositions that are useful for the treatment and prevention of proliferative diseases including cancer are also described.Type: GrantFiled: July 26, 2017Date of Patent: August 21, 2018Assignee: REXAHN PHARMACEUTICALS, INC.Inventors: Young Bok Lee, Chang-Ho Ahn, Deog Joong Kim
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Patent number: 9905185Abstract: A column driver of a display device provides a high slew rate with lowered power requirements by using external switches connected to upper and bottom output buffers. The upper output buffer is driven between a first voltage rail and a second voltage rail, and outputs a first output signal in response to a first input signal and a second input signal. The bottom output buffer is driven between the second voltage rail and a third voltage rail, and outputs a second output signal in response to a third input signal and a fourth input signal. A first switch group selectively provides input for the upper output buffer and the bottom output buffer. A second switch group feeds back the first and the second output signals to the first or the second input terminal of each of the upper output buffer and the bottom output buffer.Type: GrantFiled: July 25, 2017Date of Patent: February 27, 2018Assignee: Magnachip Semiconductor, Ltd.Inventors: Chang Ho Ahn, Byung Jae Nam, Sang Hyun Park, Jae Hong Ko, Hyun Jin Shin
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Publication number: 20180008601Abstract: The present invention relates to storage stable nanoparticulate compositions of piperazine compounds. The pharmaceutical compositions comprising the nanoparticulate compositions that are useful for the treatment and prevention of proliferative diseases including cancer are also described.Type: ApplicationFiled: July 26, 2017Publication date: January 11, 2018Applicant: Rexahn Pharmaceuticals, Inc.Inventors: Young Bok Lee, Chang-Ho Ahn, Deog Joong Kim
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Publication number: 20170323614Abstract: A column driver of a display device provides a high slew rate with lowered power requirements by using external switches connected to upper and bottom output buffers. The upper output buffer is driven between a first voltage rail and a second voltage rail, and outputs a first output signal in response to a first input signal and a second input signal. The bottom output buffer is driven between the second voltage rail and a third voltage rail, and outputs a second output signal in response to a third input signal and a fourth input signal. A first switch group selectively provides input for the upper output buffer and the bottom output buffer. A second switch group feeds back the first and the second output signals to the first or the second input terminal of each of the upper output buffer and the bottom output buffer.Type: ApplicationFiled: July 25, 2017Publication date: November 9, 2017Applicant: MagnaChip Semiconductor, Ltd.Inventors: Chang Ho AHN, Byung Jae NAM, Sang Hyun PARK, Jae Hong KO, Hyun Jin SHIN
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Patent number: 9767749Abstract: A column driver of a display device provides a high slew rate with lowered power requirements by using external switches connected to upper and bottom output buffers. The upper output buffer is driven between a first voltage rail and a second voltage rail, and outputs a first output signal in response to a first input signal and a second input signal. The bottom output buffer is driven between the second voltage rail and a third voltage rail, and outputs a second output signal in response to a third input signal and a fourth input signal. A first switch group selectively provides input for the upper output buffer and the bottom output buffer. A second switch group feeds back the first and the second output signals to the first or the second input terminal of each of the upper output buffer and the bottom output buffer.Type: GrantFiled: March 5, 2014Date of Patent: September 19, 2017Assignee: Magnachip Semiconductor, Ltd.Inventors: Chang Ho Ahn, Byung Jae Nam, Sang Hyun Park, Jae Hong Ko, Hyun Jin Shin
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Patent number: 9744167Abstract: The present invention relates to storage stable nanoparticulate compositions of piperazine compounds. The pharmaceutical compositions comprising the nanoparticulate compositions that are useful for the treatment and prevention of proliferative diseases including cancer are also described.Type: GrantFiled: June 27, 2014Date of Patent: August 29, 2017Assignee: Rexahn Pharmaceuticals, Inc.Inventors: Young B. Lee, Chang-Ho Ahn, Deog J. Kim
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Patent number: 9713615Abstract: Tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone derivatives represented by formula (I), pharmacologically acceptable salts thereof, and compositions containing such compounds are described. Methods for treating hyperproliferative disorders by administering the compounds are also described. 1,2,3,4-tetrahydroisoquinoline derivatives for making tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone compounds are also described.Type: GrantFiled: October 21, 2015Date of Patent: July 25, 2017Assignee: Rexahn Pharmaceuticals, Inc.Inventors: Young Bok Lee, Jae Min Kim, Deog Joong Kim, Chang-Ho Ahn
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Patent number: 9711074Abstract: An apparatus and a method that quickly detect an error that may occur due to an external noise occurrence during display of image data on a screen of an image display device, and that control a strobe signal output to prevent a screen defect from being displayed on the display device screen.Type: GrantFiled: March 18, 2015Date of Patent: July 18, 2017Assignee: MagnaChip Semiconductor, Ltd.Inventors: Jae Hong Ko, Shin Yoon, Byung Jae Nam, Chang Ho Ahn, Sang Hyun Park
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Publication number: 20160136166Abstract: Tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone derivatives represented by formula (I), pharmacologically acceptable salts thereof, and compositions containing such compounds are described. Methods for treating hyperproliferative disorders by administering the compounds are also described. 1,2,3,4-tetrahydroisoquinoline derivatives for making tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone compounds are also described.Type: ApplicationFiled: October 21, 2015Publication date: May 19, 2016Inventors: Young Bok Lee, Jae Min Kim, Deog Joong Kim, Chang-Ho Ahn
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Publication number: 20160104401Abstract: An apparatus and a method that quickly detect an error that may occur due to an external noise occurrence during display of image data on a screen of an image display device, and that control a strobe signal output to prevent a screen defect from being displayed on the display device screen.Type: ApplicationFiled: March 18, 2015Publication date: April 14, 2016Inventors: Jae Hong KO, Shin YOON, Byung Jae NAM, Chang Ho AHN, Sang Hyun PARK
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Patent number: 9193707Abstract: Tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone derivatives represented by formula (I), pharmacologically acceptable salts thereof, and compositions containing such compounds are described. Methods for treating hyperproliferative disorders by administering the compounds are also described. 1,2,3,4-tetrahydroisoquinoline derivatives for making tetrahydroisoquinolin-2-yl-(quinazolin-4-yl)methanone compounds are also described.Type: GrantFiled: March 14, 2014Date of Patent: November 24, 2015Assignee: Rexahn Pharmaceuticals, Inc.Inventors: Young Bok Lee, Jae Min Kim, Deog Joong Kim, Chang-Ho Ahn
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Patent number: 9007104Abstract: There is provided an apparatus for output buffering having a half-swing rail-to-rail structure. The apparatus provides output buffering by using a switch structure in order to attain a high slew rate and low power characteristics, thereby reducing current consumption. The provided apparatus for output buffering having a half-swing rail-to-rail structure includes a first output buffer, driven between a first voltage rail and a second voltage rail and outputting a first output signal in response to a first input signal and a second input signal, and a second output buffer, driven between the first and the second voltage rails and a third voltage rail and outputting a second output signal in response to a third input signal and a fourth input signal.Type: GrantFiled: March 6, 2014Date of Patent: April 14, 2015Assignee: MagnaChip Semiconductor, Ltd.Inventors: Chang Ho Ahn, Byung Jae Nam, Sang Hyun Park, Jae Hong Ko, Hyun Jin Shin
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Publication number: 20150004234Abstract: The present invention relates to storage stable nanoparticulate compositions of piperazine compounds. The pharmaceutical compositions comprising the nanoparticulate compositions that are useful for the treatment and prevention of proliferative diseases including cancer are also described.Type: ApplicationFiled: June 27, 2014Publication date: January 1, 2015Inventors: Young Bok Lee, Chang-Ho Ahn, Deog Joong Kim
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Publication number: 20140312949Abstract: There is provided an apparatus for output buffering having a half-swing rail-to-rail structure. The apparatus provides output buffering by using a switch structure in order to attain a high slew rate and low power characteristics, thereby reducing current consumption. The provided apparatus for output buffering having a half-swing rail-to-rail structure includes a first output buffer, driven between a first voltage rail and a second voltage rail and outputting a first output signal in response to a first input signal and a second input signal, and a second output buffer, driven between the first and the second voltage rails and a third voltage rail and outputting a second output signal in response to a third input signal and a fourth input signal.Type: ApplicationFiled: March 6, 2014Publication date: October 23, 2014Applicant: MAGNACHIP SEMICONDUCTOR, LTD.Inventors: Chang Ho AHN, Byung Jae NAM, Sang Hyun PARK, Jae Hong KO, Hyun Jin SHIN
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Publication number: 20140313114Abstract: A column driver of a display device provides a high slew rate with lowered power requirements by using external switches connected to upper and bottom output buffers. The upper output buffer is driven between a first voltage rail and a second voltage rail, and outputs a first output signal in response to a first input signal and a second input signal. The bottom output buffer is driven between the second voltage rail and a third voltage rail, and outputs a second output signal in response to a third input signal and a fourth input signal. A first switch group selectively provides input for the upper output buffer and the bottom output buffer. A second switch group feeds back the first and the second output signals to the first or the second input terminal of each of the upper output buffer and the bottom output buffer.Type: ApplicationFiled: March 5, 2014Publication date: October 23, 2014Applicant: MAGNACHIP SEMICONDUCTOR, LTD.Inventors: Chang Ho AHN, Byung Jae NAM, Sang Hyun PARK, Jae Hong KO, Hyun Jin SHIN