Patents by Inventor Sung-cheol Kim
Sung-cheol Kim 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: 10967376Abstract: A deterministic lateral displacement array that includes a channel, within a substrate, having a first sidewall, a second sidewall, and a channel length. A condenser portion that includes an entry port and an exit port. A first array of pillars is disposed between the entry port and the exit port of the condenser portion along the channel length, the first array of pillars operative to drive a first material particle and a second material particle towards the first sidewall of the channel. A separator portion that includes an entry port and an exit port, and a second array of pillars disposed between the entry port and the exit port of the separator portion along the channel length, the pillars operative to drive the first material particle towards the second sidewall of the channel.Type: GrantFiled: May 4, 2018Date of Patent: April 6, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Huan Hu, Sung Cheol Kim, Joshua T. Smith, Benjamin H. Wunsch
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Patent number: 10953401Abstract: A deterministic lateral displacement array that includes a channel, within a substrate, having a first sidewall, a second sidewall, and a channel length. A condenser portion that includes an entry port and an exit port. A first array of pillars is disposed between the entry port and the exit port of the condenser portion along the channel length, the first array of pillars operative to drive a first material particle and a second material particle towards the first sidewall of the channel. A separator portion that includes an entry port and an exit port, and a second array of pillars disposed between the entry port and the exit port of the separator portion along the channel length, the pillars operative to drive the first material particle towards the second sidewall of the channel.Type: GrantFiled: May 4, 2018Date of Patent: March 23, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Huan Hu, Sung Cheol Kim, Joshua T. Smith, Benjamin H. Wunsch
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Patent number: 10953402Abstract: A deterministic lateral displacement array that includes a channel, within a substrate, having a first sidewall, a second sidewall, and a channel length. A condenser portion that includes an entry port and an exit port. A first array of pillars is disposed between the entry port and the exit port of the condenser portion along the channel length, the first array of pillars operative to drive a first material particle and a second material particle towards the first sidewall of the channel. A separator portion that includes an entry port and an exit port, and a second array of pillars disposed between the entry port and the exit port of the separator portion along the channel length, the pillars operative to drive the first material particle towards the second sidewall of the channel.Type: GrantFiled: May 4, 2018Date of Patent: March 23, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Huan Hu, Sung Cheol Kim, Joshua T. Smith, Benjamin H. Wunsch
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Patent number: 10946380Abstract: Microfluid chips that comprise one or more microscale and/or mesoscale condenser arrays, which can facilitate particle purification and/or fractionation, are described herein. In one embodiment, an apparatus can comprise a layer of a microfluidic chip. The layer can comprise an inlet that can receive fluid, an outlet that can output a purified version of the fluid, and a condenser array coupled between and in fluid communication with the inlet and the outlet. The condenser array can comprise a plurality of pillars arranged in a plurality of columns. Also, a pillar gap sized to facilitate a throughput rate of the fluid of greater than or equal to about 1.0 nanoliter per hour can be located between a first pillar of the plurality of pillars in a first column of the plurality of columns and a second pillar of the plurality of pillars in the first column.Type: GrantFiled: January 19, 2018Date of Patent: March 16, 2021Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Joshua T. Smith, Stacey M. Gifford, Sung-Cheol Kim, Benjamin H. Wunsch
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Publication number: 20210039101Abstract: An apparatus is provided. The apparatus may comprise a layer of a microfluidic chip. The layer may comprise a nanoscale deterministic lateral displacement (nanoDLD) array. The nanoDLD array may comprise a plurality of pillars arranged in a plurality of columns. Further, the nanoDLD array may separate particles from a purified fluidic sample associated with a bodily materials of an organism. A method for purifying at least one target particle from a sample by utilizing a sized-based separation is provided. The method may include detecting the at least one target particle associated with the sample, by utilizing at least one detector molecule in a nanoDLD array. The method may then include separating the detected at least one target particle and the at least one detector molecule from a bump fraction in the sample based on a size of the detected at least one target particle.Type: ApplicationFiled: August 7, 2019Publication date: February 11, 2021Inventors: Stacey Gifford, Sung-Cheol Kim, Joshua T. Smith, Benjamin Hardy Wunsch
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Patent number: 10835899Abstract: A deterministic lateral displacement array that includes a channel, within a substrate, having a first sidewall, a second sidewall, and a channel length. A condenser portion that includes an entry port and an exit port. A first array of pillars is disposed between the entry port and the exit port of the condenser portion along the channel length, the first array of pillars operative to drive a first material particle and a second material particle towards the first sidewall of the channel. A separator portion that includes an entry port and an exit port, and a second array of pillars disposed between the entry port and the exit port of the separator portion along the channel length, the pillars operative to drive the first material particle towards the second sidewall of the channel.Type: GrantFiled: May 4, 2018Date of Patent: November 17, 2020Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Huan Hu, Sung Cheol Kim, Joshua T. Smith, Benjamin H. Wunsch
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Patent number: 10803367Abstract: A method and an apparatus for recognizing characters using an image are provided. A camera is activated according to a character recognition request and a preview mode is set for displaying an image photographed through the camera in real time. An auto focus of the camera is controlled and an image having a predetermined level of clarity is obtained for character recognition from the images obtained in the preview mode. The image for character recognition is character-recognition-processed so as to extract recognition result data. A final recognition character row is drawn that excludes non-character data from the recognition result data. A first word is combined including at least one character of the final recognition character row and a predetermined maximum number of characters. A dictionary database that stores dictionary information on various languages using the first word is searched, so as to provide the user with the corresponding word.Type: GrantFiled: December 17, 2019Date of Patent: October 13, 2020Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Soo Kim, Seong-Taek Hwang, Sang-Wook Oh, Sang-Ho Kim, Yun-Je Oh, Hee-Won Jung, Sung-Cheol Kim
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Publication number: 20200262698Abstract: An exemplary method includes forming a sacrificial layer along sidewalls of an array of trenches that are indented into a substrate, depositing a fill layer over the sacrificial layer, and then creating an array of gaps between the fill layer and the substrate by removing the sacrificial layer along the sidewalls of the trenches, while maintaining a structural connection between the substrate and the fill layer at the floors of the trenches. The method further includes covering the substrate, the fill layer, and the gaps with a cap layer that seal fluid-tight against the substrate and the fill layer. The method further includes indenting a first reservoir and a second reservoir through the cap layer, and into the substrate and the fill layer, across the lengths of the array of gaps, so that the array of gaps connects the first reservoir in fluid communication with the second reservoir.Type: ApplicationFiled: February 14, 2019Publication date: August 20, 2020Inventors: Joshua T. Smith, Stacey Gifford, Sung-Cheol Kim, Benjamin Wunsch
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Publication number: 20200191067Abstract: A device for reducing total hydrocarbon (THC) contained in exhaust gas in a CNG-diesel dual fuel engine system, includes: an engine providing power for the diesel and outputting exhaust gas due to operation; a MOC (Methane Oxidation Catalyst) oxidizing and discharging CH4 contained in exhaust gas discharged from the engine; an exhaust valve disposed in a pipe connecting the rear end of the engine and the front end of the MOC, and discharging the exhaust gas produced by the engine; a first temperature sensor disposed at the front end of the exhaust valve and measuring the temperature of exhaust gas coming from the engine; a second temperature sensor disposed at the rear end of the exhaust valve and measuring the exhaust gas discharged from the exhaust valve and flowing into the MOC; and an exhaust valve control unit increasing the temperature of exhaust gas flowing into the MOC.Type: ApplicationFiled: June 13, 2019Publication date: June 18, 2020Inventors: Joo Chang PARK, Sung Cheol KIM
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Publication number: 20200166468Abstract: Techniques regarding one or more structures for checking the via formation are provided. For example, one or more embodiments described herein can comprise an apparatus, which can comprise a microfluidic channel positioned on a silicon substrate. The apparatus can also comprise a pattern of material comprised within the microfluidic channel and positioned on a surface of the silicon substrate. Further, the pattern of material can define a future location of a through-silicon via. An advantage of such an apparatus can be that the pattern of material can facilitate checking whether the through-silicon via is fully or partially formed.Type: ApplicationFiled: November 28, 2018Publication date: May 28, 2020Inventors: Benjamin Wunsch, Sung-Cheol Kim, Stacey Gifford, Joshua T. Smith
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Publication number: 20200164367Abstract: Techniques regarding one or more structures that can facilitate automated, multi-stage processing of one or more nanofluidic chips are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a roller positioned adjacent to a microfluidic card comprising a plurality of fluid reservoirs in fluid communication with a plurality of nanofluidic chips. An arrangement of the plurality of nanofluidic chips on the microfluidic card can defines a processing sequence driven by a translocation of the roller across the microfluidic card.Type: ApplicationFiled: November 28, 2018Publication date: May 28, 2020Inventors: Benjamin Wunsch, Joshua T. Smith, Stacey Gifford, Sung-Cheol Kim
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Publication number: 20200122144Abstract: Techniques regarding integrated purification-detection devices for detecting one or more biomarkers are provided. For example, one or more embodiments described herein are directed to an apparatus, comprising a housing and a microfluidic chip contained within the housing. The microfluidic chip comprises a separation unit that separates, using one or more nano deterministic lateral displacement (nanoDLD) arrays, target biological entities having a defined size range from other biological entities included in a biological fluid sample. The microfluidic chip further comprises a detection unit that facilitates detecting presence of one or more biomarkers associated with the target biological entities using one or more detection molecules or macromolecules that chemically reacts with the one or more biomarkers.Type: ApplicationFiled: October 23, 2018Publication date: April 23, 2020Inventors: Joshua T. Smith, Benjamin Wunsch, Stacey Gifford, Sung-Cheol Kim
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Publication number: 20200117962Abstract: A method and an apparatus for recognizing characters using an image are provided. A camera is activated according to a character recognition request and a preview mode is set for displaying an image photographed through the camera in real time. An auto focus of the camera is controlled and an image having a predetermined level of clarity is obtained for character recognition from the images obtained in the preview mode. The image for character recognition is character-recognition-processed so as to extract recognition result data. A final recognition character row is drawn that excludes non-character data from the recognition result data. A first word is combined including at least one character of the final recognition character row and a predetermined maximum number of characters. A dictionary database that stores dictionary information on various languages using the first word is searched, so as to provide the user with the corresponding word.Type: ApplicationFiled: December 17, 2019Publication date: April 16, 2020Inventors: Hyun-Soo KIM, Seong-Taek HWANG, Sang-Wook OH, Sang-Ho KIM, Yun-Je OH, Hee-Won JUNG, Sung-Cheol KIM
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Publication number: 20200064342Abstract: A process for monitoring binding events, a coating compound, and a device for monitoring binding events are disclosed. The process includes providing two reservoirs that contain an electrically conductive fluid, wherein the reservoirs are separated by a membrane having a nanopore. The process also includes selecting a target compound, selecting a ligand based on the selection of the target compound, and preparing a coating that includes the coating compound, wherein the coating compound includes the ligand and a moiety that immobilizes the ligand. Additionally, the process includes applying the coating to the inner surface of the nanopore, adding the target compound to a conductive liquid in the first chamber, establishing a voltage gradient across the membrane, and electrically monitoring translocation of the target molecule. The device includes the reservoirs and the membrane having the coated nanopore.Type: ApplicationFiled: August 24, 2018Publication date: February 27, 2020Inventors: Priscilla Racquel Rogers, Stefan Harrer, Ali Afzali-Ardakani, Jose Miguel Lobez Comeras, Sung Cheol Kim, Natalie J. Gunn
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Publication number: 20190382828Abstract: Techniques regarding detecting one or more defined nucleic acid sequences are provided. For example, one or more embodiments described herein can comprise a method, which can comprise adding a molecular probe to a sample fluid comprising a first deoxyribonucleic acid segment and a second deoxyribonucleic acid segment. The molecular probe can have an affinity to bond to a defined nucleic acid sequence. The method can also comprise separating, via a nanoscale deterministic lateral displacement array, the first deoxyribonucleic acid segment from the second deoxyribonucleic acid segment based on a size of the first deoxyribonucleic acid segment.Type: ApplicationFiled: June 13, 2018Publication date: December 19, 2019Inventors: Stacey Gifford, Sung-Cheol Kim, Joshua T. Smith, Benjamin Wunsch
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Publication number: 20190382821Abstract: Techniques regarding screening for mutations using nanoscale deterministic arrays are provided. For example, one or more embodiments described herein can comprise a method, which can comprise cleaving a deoxyribonucleic acid segment hybridized with a molecular probe to form a sample fluid. The cleaving can occur at a first end and a second end of the molecular probe. Also, the cleaving can comprise a cleaving agent that targets base pair mismatches. The method can also comprise supplying the sample fluid to a nanoscale deterministic lateral displacement array to screen for a single nucleotide polymorphism.Type: ApplicationFiled: June 13, 2018Publication date: December 19, 2019Inventors: Stacey Gifford, Benjamin Wunsch, Joshua T. Smith, Sung-Cheol Kim
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Publication number: 20190381505Abstract: Multistage deterministic lateral displacement devices, methods of forming the devices, and methods of separating a fluid mixture including particles having three or more particle sizes generally include a first module and at least one additional module. Each module includes a condenser portion and a separate portion. The condenser portion is generally configured to focus a streamline of all particles to a center of a channel whereas the separator separates the streamline of all particles into two different streamlines. One of the streamlines focuses the largest particles in the fluid mixture along a sidewall of the channel and the other streamline of smaller particles is between opposing sidewalls that define the channel. Each additional module can be used to further separate the largest particles remaining in the fluid mixture from the smaller particles.Type: ApplicationFiled: June 13, 2018Publication date: December 19, 2019Inventors: Sung-Cheol Kim, Stacey Gifford, Joshua T. Smith, Benjamin Wunsch
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Patent number: 10509989Abstract: A method and an apparatus for recognizing characters using an image are provided. A camera is activated according to a character recognition request and a preview mode is set for displaying an image photographed through the camera in real time. An auto focus of the camera is controlled and an image having a predetermined level of clarity is obtained for character recognition from the images obtained in the preview mode. The image for character recognition is character-recognition-processed so as to extract recognition result data. A final recognition character row is drawn that excludes non-character data from the recognition result data. A first word is combined including at least one character of the final recognition character row and a predetermined maximum number of characters. A dictionary database that stores dictionary information on various languages using the first word is searched, so as to provide the user with the corresponding word.Type: GrantFiled: August 24, 2018Date of Patent: December 17, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Soo Kim, Seong-Taek Hwang, Sang-Wook Oh, Sang-Ho Kim, Yun-Je Oh, Hee-Won Jung, Sung-Cheol Kim
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Publication number: 20190226953Abstract: Microscale and/or mesoscale condenser arrays that can facilitate microfluidic separation and/or purification of mesoscale and/or nanoscale particles and methods of operation are described herein. An apparatus comprises a condenser array comprising pillars arranged in a plurality of columns, wherein a pillar gap greater than or equal to about 0.5 micrometers is located between a first pillar of the pillars in a first column of the columns and a second pillar of the plurality of pillars in the first column, and wherein the first pillar is adjacent to the second pillar. The first ratio can be characterized by Dx/Dy is less than or equal to a first defined value, wherein Dx represents a first distance across the lattice in a first direction, wherein Dy represents a second distance across the lattice in a second direction, and wherein the first direction is orthogonal to the second direction.Type: ApplicationFiled: January 19, 2018Publication date: July 25, 2019Inventors: Benjamin H. Wunsch, Joshua T. Smith, Sung-Cheol Kim, Stacey M. Gifford
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Publication number: 20190224677Abstract: Microfluid chips that comprise one or more microscale and/or mesoscale condenser arrays, which can facilitate particle purification and/or fractionation, are described herein. In one embodiment, an apparatus can comprise a layer of a microfluidic chip. The layer can comprise an inlet that can receive fluid, an outlet that can output a purified version of the fluid, and a condenser array coupled between and in fluid communication with the inlet and the outlet. The condenser array can comprise a plurality of pillars arranged in a plurality of columns. Also, a pillar gap sized to facilitate a throughput rate of the fluid of greater than or equal to about 1.0 nanoliter per hour can be located between a first pillar of the plurality of pillars in a first column of the plurality of columns and a second pillar of the plurality of pillars in the first column.Type: ApplicationFiled: January 19, 2018Publication date: July 25, 2019Inventors: Joshua T. Smith, Stacey M. Gifford, Sung-Cheol Kim, Benjamin H. Wunsch