Patents by Inventor Suk Won Cha

Suk Won Cha 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: 20240063401
    Abstract: A method of manufacturing a conductive electrolyte layer according to various embodiments of the present disclosure for achieving the objects is disclosed. The method includes loading a substrate into a sputter chamber, connecting a plurality of targets to the chamber, injecting a mixed gas into the chamber, supplying power to each of the plurality of targets and forming a conductive electrolyte layer on one surface of the substrate, and sintering the conductive electrolyte layer at a set sintering temperature.
    Type: Application
    Filed: August 18, 2023
    Publication date: February 22, 2024
    Applicants: Seoul National University R&DB Foundation, Foundation of Soongsil University-Industry Cooperation
    Inventors: Suk Won CHA, Jaewon HWANG, Inwon CHOI, Taehyun PARK
  • Publication number: 20240063415
    Abstract: A method of forming a conductive electrolyte layer according to various embodiments of the present disclosure for achieving the objects is disclosed. The method includes loading a substrate into a sputtering chamber, connecting multiple targets to the chamber, injecting a mixed gas into the chamber, supplying power to each of the multiple targets and forming the conductive electrolyte layer on one surface of the substrate, and sintering the conductive electrolyte layer at a set sintering temperature.
    Type: Application
    Filed: August 18, 2023
    Publication date: February 22, 2024
    Applicants: Seoul National University R&DB Foundation, Foundation of Soongsil University-Industry Cooperation
    Inventors: Taehyun PARK, Seokhun JEONG, Suk Won CHA, Jaewon HWANG
  • Patent number: 9714023
    Abstract: A method for controlling a hybrid vehicle is provided. The method includes setting a driving path of the vehicle based on an input destination and current position and predicting a future speed of the vehicle using information regarding the driving path, environmental information, and driving pattern information of a driver. An optimum power distribution map is derived including an optimum SOC trajectory and a power distribution ratio of the engine and the motor using the predicted future speed. Additionally, engine power and motor power is distributed using the optimum SOC trajectory and a power distribution ratio of the engine and the motor.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: July 25, 2017
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Seoul National University R & DB Foundation
    Inventors: Hyunsup Kim, Seok Joon Kim, Hyun Sub Lee, Jong Ryeol Jeong, Hee Yun Lee, Suk-Won Cha
  • Publication number: 20170036663
    Abstract: A method for controlling a hybrid vehicle is provided. The method includes setting a driving path of the vehicle based on an input destination and current position and predicting a future speed of the vehicle using information regarding the driving path, environmental information, and driving pattern information of a driver. An optimum power distribution map is derived including an optimum SOC trajectory and a power distribution ratio of the engine and the motor using the predicted future speed. Additionally, engine power and motor power is distributed using the optimum SOC trajectory and a power distribution ratio of the engine and the motor.
    Type: Application
    Filed: November 24, 2015
    Publication date: February 9, 2017
    Inventors: Hyunsup Kim, Seok Joon Kim, Hyun Sub Lee, Jong Ryeol Jeong, Hee Yun Lee, Suk-Won Cha
  • Publication number: 20160172687
    Abstract: Disclosed are an oxide-coated metal catalyst for a composite electrode and a method for preparing a composite electrode using the same. The metal catalyst includes oxide particles applied thereto, wherein the oxide particles are applied so as not to overlap one another or are applied as an independent separate layer, and the oxide particles are nanograins having a diameter of 1-500 nm. The oxide applied to the metal catalyst prevents the agglomeration of particles of the metal catalyst even under high-temperature conditions. Accordingly, the present invention overcomes the problem in which particles of a metal catalyst that is used in the anode or cathode of various fuel cells or in various electrode materials agglomerate when the metal catalyst particles reach high-temperature conditions during the fabrication or operation of the fuel cells, thereby reducing the efficiency of the electrode.
    Type: Application
    Filed: July 10, 2015
    Publication date: June 16, 2016
    Inventors: Ik Whang Chang, Suk Won Cha
  • Patent number: 9283957
    Abstract: A hydraulic pressure instruction-learning apparatus of a hybrid vehicle includes a power source including an engine and a motor. The engine clutch is disposed between the engine and the motor. The vehicle controller is configured to output a hydraulic pressure instruction to control engagement/disengagement of the engine clutch. The vehicle controller compares output performance of the engine clutch with predetermined dynamic target performance in a launch control, extracts a performance error function if a difference therebetween exceeds a predetermined allowable error range, and corrects the output performance of the engine clutch, such that the output performance falls within the predetermined allowable error range and is stored as a learned value.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: March 15, 2016
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, SNU R&DB FOUNDATION
    Inventors: Seongwook Moon, Daero Park, Seok Min Jeong, Jae Ho Lee, Jung Un An, Hee Yun Lee, Won Sik Lim, Nam Woong Kim, Kyo Bum Lee, Howon Seo, Suk-Won Cha
  • Publication number: 20150266468
    Abstract: A hydraulic pressure instruction-learning apparatus of a hybrid vehicle includes a power source including an engine and a motor. The engine clutch is disposed between the engine and the motor. The vehicle controller is configured to output a hydraulic pressure instruction to control engagement/disengagement of the engine clutch. The vehicle controller compares output performance of the engine clutch with predetermined dynamic target performance in a launch control, extracts a performance error function if a difference therebetween exceeds a predetermined allowable error range, and corrects the output performance of the engine clutch, such that the output performance falls within the predetermined allowable error range and is stored as a learned value.
    Type: Application
    Filed: November 24, 2014
    Publication date: September 24, 2015
    Inventors: Seongwook MOON, Daero PARK, Seok Min JEONG, Jae Ho LEE, Jung Un AN, Hee Yun LEE, Won Sik LIM, Nam Woong KIM, Kyo Bum LEE, Howon SEO, Suk-Won CHA
  • Publication number: 20150236366
    Abstract: Provided is a flexible fuel cell.
    Type: Application
    Filed: December 19, 2014
    Publication date: August 20, 2015
    Applicants: SNU R&DB Foundation, Global Frontier Center for Multiscale Energy Systems
    Inventors: Ik Whang CHANG, Jin Hwan LEE, Tae Hyun PARK, Suk Won CHA, Seung Hwan KO
  • Publication number: 20150155572
    Abstract: Disclosed herein is a flexible fuel cell, including: (i) an anode comprising an anode end plate structure made of a polymer material and provided with a hydrogen flow channel and a collector made of a metal layer deposited on the anode end plate structure; (ii) a cathode comprising a cathode end plate structure made of a polymer material and provided with an air flow channel having air holes and a collector formed of a metal layer deposited on the cathode end plate structure; and (iii) a membrane electrode assembly (MEA) comprising a polymer electrolyte membrane whose surface is coated with a catalyst layer and a gas diffusion layer (GDL) provided on at least one side thereof, wherein the membrane electrode assembly is interposed and pressed between the anode and the cathode.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Inventors: Ik Whang Chang, Tae Hyun Park, Yoon Ho Lee, Suk Won Cha
  • Patent number: 8895199
    Abstract: Provided is a fuel cell system using waste hydrogen generated from a sea water electrolyzing apparatus, the fuel cell system including: a sea water electrolyzing apparatus carrying out electrolysis of sea water used as cooling water in a nuclear power generation system to produce a chlorine-containing material; a hydrogen conveying line linked to one side of the sea water electrolyzing apparatus to convey waste hydrogen generated during the electrolysis; and a fuel cell linked to the hydrogen conveying line to generate electricity by using the waste hydrogen supplied from the hydrogen conveying line as fuel. The fuel cell system generates electricity by using waste hydrogen, which, otherwise, is totally discarded after being generated secondarily from the sea water electrolyzing apparatus, as fuel for the fuel cell.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: November 25, 2014
    Assignee: XFC Inc.
    Inventors: Ju-Hyung Lee, Jong Won Choi, Suk-Won Cha, Ik Whang Chang
  • Patent number: 8709671
    Abstract: Disclosed is a fuel cell including, a stack having fuel channels through which fuel flows and air channels through which air flows, the fuel channels and air channels being located at both sides of a reaction film, an actuator disposed to be involved in the air channels, the actuator allowing external air of the stack to affect the air channels, and a skirt extending from the stack with communicating with the air channels.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: April 29, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Dae-Young Lee, Seo Young Kim, Young Soo Chang, Young-Sheen Hwang, Hun-Sik Han, Suk-Won Cha
  • Patent number: 8669020
    Abstract: A membrane electrode assembly including an anode that incorporates a porous support and a hydrogen permeable metal thin film disposed on the porous support; a cathode; and a proton conductive solid oxide electrolyte membrane disposed between the anode and the cathode.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: March 11, 2014
    Assignees: Samsung Electronics Co., Ltd., Snu R&DB Foundation
    Inventors: Pil-won Heo, Yoon-ho Lee, Sang-kyun Kang, Jin-su Ha, Suk-won Cha
  • Publication number: 20130260276
    Abstract: Disclosed herein is a flexible fuel cell, including: (i) an anode comprising an anode end plate structure made of a polymer material and provided with a hydrogen flow channel and a collector made of a metal layer deposited on the anode end plate structure; (ii) a cathode comprising a cathode end plate structure made of a polymer material and provided with an air flow channel having air holes and a collector formed of a metal layer deposited on the cathode end plate structure; and (iii) a membrane electrode assembly (MEA) comprising a polymer electrolyte membrane whose surface is coated with a catalyst layer and a gas diffusion layer (GDL) provided on at least one side thereof, wherein the membrane electrode assembly is interposed and pressed between the anode and the cathode.
    Type: Application
    Filed: February 25, 2013
    Publication date: October 3, 2013
    Applicants: XFC Inc., SNU R&DB Foundation
    Inventors: Ik Whang Chang, Tae Hyun Park, Yoon Ho Lee, Suk Won Cha, Ju-Hyung Lee
  • Patent number: 8460840
    Abstract: A separator for a fuel cell is provided. The separator comprises a flow path member and a base separator. The flow path member is made of a graphite foil and has a flow path through which fluids pass. The base separator has a seating recess formed on the surface thereof. The flow path member is mounted in the seating recess. The flow path is formed by pressing the graphite foil. The separator can be produced at reduced processing cost in a short processing time.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: June 11, 2013
    Assignee: XFC Inc.
    Inventors: Ju-Hyung Lee, Yong-Shin Hwang, Suk-Won Cha, Jong-Won Choi
  • Publication number: 20120321990
    Abstract: Provided is an electrolyte membrane for solid oxide fuel cells. The electrolyte membrane for solid oxide fuel cells includes two or more deposited layers, wherein each of the deposited layers independently has an average crystal grain size of 5-100 nm and the deposited layers are different from each other in the average crystal grain.
    Type: Application
    Filed: August 23, 2011
    Publication date: December 20, 2012
    Applicants: XFC INC., SNU R&DB FOUNDATION
    Inventors: Ik Whang Chang, Young Seok Jee, Sang Hoon Ji, Yoon Ho Lee, Suk-Won Cha, Ju-Hyung Lee
  • Publication number: 20120100444
    Abstract: Provided is a fuel cell system using waste hydrogen generated from a sea water electrolyzing apparatus, the fuel cell system including: a sea water electrolyzing apparatus carrying out electrolysis of sea water used as cooling water in a nuclear power generation system to produce a chlorine-containing material; a hydrogen conveying line linked to one side of the sea water electrolyzing apparatus to convey waste hydrogen generated during the electrolysis; and a fuel cell linked to the hydrogen conveying line to generate electricity by using the waste hydrogen supplied from the hydrogen conveying line as fuel. The fuel cell system generates electricity by using waste hydrogen, which, otherwise, is totally discarded after being generated secondarily from the sea water electrolyzing apparatus, as fuel for the fuel cell.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 26, 2012
    Applicant: XFC INC.
    Inventors: Ju-Hyung Lee, Jong Won Choi, Suk-Won Cha, Ik Whang Chang
  • Publication number: 20120094213
    Abstract: A solid oxide electrolyte membrane including a solid oxide electrolyte layer; and an insulating layer formed as a conformal layer on a single surface or two opposite surfaces of the solid oxide electrolyte layer and including nano-grains having a average crystal grain size of 30 nm or less, a method of manufacturing the solid oxide electrolyte membrane, and a fuel cell including the solid oxide electrolyte membrane.
    Type: Application
    Filed: September 7, 2011
    Publication date: April 19, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jin-su HA, Sang-kyun KANG, Pil-won HEO, Yoon-ho LEE, Suk-won CHA, Ik-whang CHANG, Tae-young KIM, Un-jeong KIM
  • Publication number: 20120088180
    Abstract: A membrane electrode assembly including an anode that incorporates a porous support and a hydrogen permeable metal thin film disposed on the porous support; a cathode; and a proton conductive solid oxide electrolyte membrane disposed between the anode and the cathode.
    Type: Application
    Filed: June 29, 2011
    Publication date: April 12, 2012
    Applicants: SNU R&DB Foundation, Samsung Electronics Co., Ltd.
    Inventors: Pil-won HEO, Yoon-ho Lee, Sang-kyun Kang, Jin-su Ha, Suk-won Cha
  • Patent number: 7799453
    Abstract: Water flooding at the cathode of a fuel cell is a common problem in fuel cells. By integrating an electroosmotic (EO) pump to remove product water from the cathode area, fuel cell power can be increased. Integration of EO pumps transforms the designs of air channel and air breathing cathodes, reducing air pumping power loads and increasing oxidant transport. Hydration of gas streams, management of liquid reactants, and oxidant delivery can also be accomplished with integrated electroosmotic pumps. Electroosmotic pumps have no moving parts, can be integrated as a layer of the fuel cell, and scale with centimeter to micron scale fuel cells.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: September 21, 2010
    Assignees: The Board of Trustees of the Leland Stanford Junior University, Honda Motor Co., Ltd.
    Inventors: Juan Santiago, Jonathan Posner, Friedrich B. Prinz, Tibor Fabian, John Eaton, Suk-Won Cha, Cullen Buie, Daejoogn Kim, Hideaki Tsuru, Jun Sasahara, Tadahiro Kubota, Yuji Saito
  • Publication number: 20100190082
    Abstract: Disclosed is a fuel cell including, a stack having fuel channels through which fuel flows and air channels through which air flows, the fuel channels and air channels being located at both sides of a reaction film, an actuator disposed to be involved in the air channels, the actuator allowing external air of the stack to affect the air channels, and a skirt extending from the stack with communicating with the air channels.
    Type: Application
    Filed: January 27, 2010
    Publication date: July 29, 2010
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dae-Young Lee, Seo Young Kim, Young Soo Chang, Young-Sheen Hwang, Hun-Sik Han, Suk-Won Cha