Patents by Inventor Seo Ho Choi

Seo 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).

  • Publication number: 20190172587
    Abstract: Provided is an apparatus for predicting a disease risk of a metabolic disorder. The apparatus includes: a machine learning model generating unit which generates a machine learning model which learns a degree of a relationship between at least one of a plurality of state variables and genetic information and a disease risk of metabolic disorders with the plurality of state variables including a living condition variable and a health condition variable of a patient with a metabolic disorder, generic information, and the disease risk of the metabolic disorders as inputs; an information input unit which receives a subject state variable and subject genetic information of the subject; and a disease risk predicting unit which predicts a subject disease risk of the subject by applying the subject state variable and the subject genetic information of the subject to the machine learning model.
    Type: Application
    Filed: December 31, 2018
    Publication date: June 6, 2019
    Inventors: Sue Kyung PARK, Jong Hyo KIM, Joo Ho TAI, Choong Hyun AHN, Seo Kyung AN, Jeoung Bin CHOI
  • Publication number: 20170147130
    Abstract: A touch control device includes a base including a metal complex; a sensing pattern formed in a pattern groove formed in a touch area of the base and including a conductive material; and a wire arranged in a wire groove outside of the touch area of the base and connecting the sensing pattern and an integrated circuit, the wire including a conductive material.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 25, 2017
    Inventors: Gideok KWON, Jong Bok LEE, Seo Ho CHOI
  • Patent number: 9450258
    Abstract: Disclosed is a device and method for controlling hydrogen concentration of a fuel cell system to maintain the concentration of hydrogen of an anode at a proper level in accordance with the concentration supplied to a fuel cell. More specifically, a hydrogen concentration measuring sensor is directly provided in a hydrogen storage device, the hydrogen concentration and the impurity concentration in an anode channel of the fuel cell system are estimated based on a measured hydrogen concentration, and when it is determined that the hydrogen concentration in the anode channel falls under a reference value at which the fuel cell system can be stably operated, purge control for discharging the gases (hydrogen and impurities) in the anode channel to the outside is performed, so that the hydrogen concentration in the anode channel of the fuel cell system can be maintained equal to or higher than the reference value.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: September 20, 2016
    Assignee: Hyundai Motor Company
    Inventors: Dong Hun Lee, Seo Ho Choi
  • Publication number: 20160179366
    Abstract: A touch input device includes a touch unit to which a user can input a touch gesture, wherein the touch unit includes a gesture input unit positioned at a center of the touch unit and a swiping input unit inclined downward along an edge of the gesture input unit, and the gesture input unit and the swiping input unit receive separate touch signals.
    Type: Application
    Filed: November 13, 2015
    Publication date: June 23, 2016
    Inventors: Jungsang MIN, Nae Seung KANG, Gi Beom HONG, Sung Un KIM, Seo Ho CHOI, Sihyun JOO, Jeong-Eom LEE, Werner PETER, Andy Max PRILL
  • Publication number: 20160137064
    Abstract: A touch input device includes a touch unit to which a user is able to input a touch gesture, wherein the touch unit includes a concave shape, and gradually deepens from an edge portion toward a central portion.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 19, 2016
    Inventors: Jungsang MIN, Nae Seung KANG, Gi Beom HONG, Sung Un KIM, Seo Ho CHOI, Sihyun JOO, Jeong-Eom LEE, Werner PETER, Andy Max PRILL
  • Patent number: 9238418
    Abstract: A method of controlling power of the fuel cell vehicle includes dividing an expected driving path of the fuel cell vehicle into a plurality of sections and setting the plurality of sections according to a gradient, and comparing whether a predicted battery state of charge variation is within a battery charging/discharging allowance range for each of the plurality of divided sections The method further includes comparing predicted power with a predetermined maximum allowance power for each of the plurality of divided sections, and setting the plurality of divided sections as a battery charging/discharging prohibition section and a battery charging/discharging allowance section in advance according to a result of the comparison of the predicted battery state of charge variation and the predicted power.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: January 19, 2016
    Assignees: HYUNDAI MOTOR COMPANY, KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seongpil Ryu, Sang Uk Kwon, Kyuil Lee, Seo Ho Choi, Jihun Han, Youngjin Park
  • Patent number: 8920987
    Abstract: The present invention provides a fuel cell system, which reduces the temperature of exhaust gas discharged from a fuel cell stack to a humidifier to increase the humidity thereof when the fuel cell stack operates at high temperature and high power, and thus improves the humidification performance for air as an oxidant in the humidifier and improves the performance of the fuel cell stack. For this purpose, the present invention provides a fuel cell system in which an intercooler is installed in an exhaust gas pipe, which connects a cathode outlet of the fuel cell stack and the humidifier, to cool the exhaust gas as a water supply source of the humidifier such that the intercooler reduces the temperature of the exhaust gas and, at the same time, increase the humidity thereof, thus improving humidification performance for air as an oxidant in the humidifier.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: December 30, 2014
    Assignee: Hyundai Motor Company
    Inventors: Dong Hun Lee, Seo Ho Choi, Woo Suk Sung
  • Publication number: 20140288737
    Abstract: A method of controlling power of the fuel cell vehicle includes dividing an expected driving path of the fuel cell vehicle into a plurality of sections and setting the plurality of sections according to a gradient, and comparing whether a predicted battery state of charge variation is within a battery charging/discharging allowance range for each of the plurality of divided sections The method further includes comparing predicted power with a predetermined maximum allowance power for each of the plurality of divided sections, and setting the plurality of divided sections as a battery charging/discharging prohibition section and a battery charging/discharging allowance section in advance according to a result of the comparison of the predicted battery state of charge variation and the predicted power.
    Type: Application
    Filed: October 15, 2013
    Publication date: September 25, 2014
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, HYUNDAI MOTOR COMPANY
    Inventors: Seongpil RYU, Sang Uk KWON, Kyuil LEE, Seo Ho CHOI, Jihun HAN, Youngjin PARK
  • Publication number: 20140145500
    Abstract: The present invention provides a power distribution device and method for a fuel cell-supercapacitor hybrid vehicle, which can prevent an initial discharge of a supercapacitor during acceleration of the fuel cell-supercapacitor hybrid vehicle and, at the same time, enable the supercapacitor to provide power assist during high speed and high power operation. The power distribution device includes a relay mounted on a charge/discharge line between a fuel cell and a supercapacitor, a unidirectional buck converter disposed between an output terminal of the supercapacitor and a bus terminal of the fuel cell and outputting supercapacitor energy to the bus terminal of the fuel cell only when power assist is required, and a control means controlling the operation of the relay and the unidirectional buck converter.
    Type: Application
    Filed: October 9, 2009
    Publication date: May 29, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Sang Uk Kwon, Sun Soon Park, Kyu Il Lee, Seo Ho Choi, Soon Il Jeon, Soon Woo Kwon
  • Patent number: 8676416
    Abstract: The present invention provides a system and method for starting a fuel cell vehicle in an emergency, which can start the fuel cell by supplying necessary air to the fuel cell even in the event of a failure or malfunction of a high voltage system, the high voltage system including a high voltage DC-DC converter and a high voltage battery which are generally used as a power source of an air blower during start-up of the fuel cell. In particular, the present invention provides a system and method for starting a fuel cell vehicle in an emergency, in which a controller drives an air blower by a voltage output from a low voltage battery to start the fuel cell in an emergency, if it is determined that there is a failure or malfunction in the high voltage system during start-up of a fuel cell system.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: March 18, 2014
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Gyu Ham, Kyung Won Suh, Seo Ho Choi
  • Patent number: 8518593
    Abstract: The present invention provides a method for controlling the operation of a fuel cell system at low temperature that can suitably prevent flooding in a cathode of a fuel cell stack during low-temperature operation, thus improving the operation stability and durability of the fuel cell stack.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: August 27, 2013
    Assignees: Hyundai Motor Company, Industry-University Cooperation Foundation Hanyang University
    Inventors: Dong Hun Lee, Seo Ho Choi, Sun Soon Park, Myoung Ho Sunwoo, Jung Hwan Ryu, Keon Yup Chu, Ki Chun Jo
  • Patent number: 8486571
    Abstract: The present invention provides a method for controlling output of a fuel cell to improve fuel efficiency of a fuel cell hybrid vehicle, in which the fuel cell is operated at a constant power at a maximum efficiency point, wherein the fuel cell and a storage means are directly connected if the output and energy of the storage means is insufficient, and the power generation of the fuel cell is stopped when the level of energy of the storage means is increased during stopping or during low power operation such that the fuel cell is intensively operated at the maximum efficiency point, thus improving the fuel efficiency of the fuel cell and the efficiency of the fuel cell system.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 16, 2013
    Assignee: Hyundai Motor Company
    Inventors: Seo Ho Choi, Nam Woo Lee, Soon Il Jeon, Sang Uk Kwon, Seong Pil Ryu, Sun Soon Park
  • Publication number: 20130137007
    Abstract: Disclosed is a device and method for controlling hydrogen concentration of a fuel cell system to maintain the concentration of hydrogen of an anode at a proper level in accordance with the concentration supplied to a fuel cell. More specifically, a hydrogen concentration measuring sensor is directly provided in a hydrogen storage device, the hydrogen concentration and the impurity concentration in an anode channel of the fuel cell system are estimated based on a measured hydrogen concentration, and when it is determined that the hydrogen concentration in the anode channel falls under a reference value at which the fuel cell system can be stably operated, purge control for discharging the gases (hydrogen and impurities) in the anode channel to the outside is performed, so that the hydrogen concentration in the anode channel of the fuel cell system can be maintained equal to or higher than the reference value.
    Type: Application
    Filed: May 31, 2012
    Publication date: May 30, 2013
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Dong Hun Lee, Seo-Ho Choi
  • Patent number: 8373370
    Abstract: The present invention provides a position sensorless control method of a high performance permanent magnet synchronous motor during emergency operation, which can accurately detect a magnetic pole position of the synchronous motor based on a position sensorless vector control using an adaptive observer configured based on a permanent magnet synchronous motor model.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: February 12, 2013
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Postech Academy-Industry Foundation
    Inventors: Soon Woo Kwon, Seo Ho Choi, Joon Yong Lee, Kwang Hee Nam, Jin Seok Hong, Sung Yoon Jung, Tae Heon Kim
  • Patent number: 8372560
    Abstract: The present invention provides a separator for a fuel cell, in which a water discharge hole such as a venturi tube or a water discharge means including a metal plate for condensing water is provided on a land of the separator being in contact with a gas diffusion layer (GDL) of a fuel cell so that water generated by a reaction is easily discharged from the GDL through the water discharge means.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: February 12, 2013
    Assignee: Hyundai Motor Company
    Inventors: Sun Soon Park, Seong Pil Ryu, Hee Seok Jeong, Sang Uk Kwon, Nam Woo Lee, Seo Ho Choi
  • Patent number: 8315752
    Abstract: The present invention provides an apparatus and method for controlling motor position and creep of an electric vehicle, in which when a running vehicle is stopped, motor position control for maintaining the vehicle in the stopped position even when a brake pedal is released is performed, and then creep torque control is performed such that the vehicle is prevented from rolling backwards and suddenly starting when the vehicle is restarted after a stop on a slope.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: November 20, 2012
    Assignee: Hyundai Motor Company
    Inventors: Sang Uk Kwon, Seo Ho Choi, Soon Woo Kwon, Kyu Il Lee, Joon Yong Lee
  • Patent number: 8178253
    Abstract: The present invention provides a current collector of an end plate for a fuel cell and a method for controlling the same, in which a plurality of current collector plates having different resistance values is mounted on an end plate so that the current of a fuel cell is consumed during cold start and during low power operation to improve cold startability of the fuel cell and, further, the durability of a membrane electrode assembly (MEA) is improved due to an increase in voltage during low power operation.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: May 15, 2012
    Inventors: Seong Pil Ryu, Sun Soon Park, Nam Woo Lee, Sang Uk Kwon, Seo Ho Choi, Duck Whan Kim
  • Publication number: 20120053766
    Abstract: The present invention provides a system and method for starting a fuel cell vehicle in an emergency, which can start the fuel cell by supplying necessary air to the fuel cell even in the event of a failure or malfunction of a high voltage system, the high voltage system including a high voltage DC-DC converter and a high voltage battery which are generally used as a power source of an air blower during start-up of the fuel cell. In particular, the present invention provides a system and method for starting a fuel cell vehicle in an emergency, in which a controller drives an air blower by a voltage output from a low voltage battery to start the fuel cell in an emergency, if it is determined that there is a failure or malfunction in the high voltage system during start-up of a fuel cell system.
    Type: Application
    Filed: November 17, 2010
    Publication date: March 1, 2012
    Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANY
    Inventors: Sung Gyu Ham, Kyung Won Suh, Seo Ho Choi
  • Patent number: 8119297
    Abstract: The present invention provides an idle stop-start control method of a fuel cell hybrid vehicle including a fuel cell as a main power source and a storage means as an auxiliary power source, in which air and hydrogen supply is cut off during low power operation where the efficiency of the fuel cell is low and during regenerative braking such that residual oxygen and hydrogen are consumed to drop the voltage of a fuel cell stack, thus stopping the operation of the fuel cell.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: February 21, 2012
    Assignee: Hyundai Motor Company
    Inventors: Sang Uk Kwon, Seo Ho Choi, Nam Woo Lee, Seong Pil Ryu, Sun Soon Park
  • Publication number: 20110070515
    Abstract: The present invention provides a method for controlling the operation of a fuel cell system at low temperature that can suitably prevent flooding in a cathode of a fuel cell stack during low-temperature operation, thus improving the operation stability and durability of the fuel cell stack.
    Type: Application
    Filed: June 7, 2010
    Publication date: March 24, 2011
    Applicants: Hyundai Motor Company, Industry-University Cooperation Foundation Hanyang University
    Inventors: Dong Hun Lee, Seo Ho Choi, Sun Soon Park, Myoung Ho Sunwoo, Jung Hwan Ryu, Keon Yup Chu, Ki Chun Jo