Patents by Inventor Young Woo Choi

Young Woo 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: 20140172910
    Abstract: A music recommendation system and method is provided and include a processor that is configured to collect kinetic information and control information of a vehicle. In addition, the processor is configured to generate stress information of a driver by processing the kinetic information and the control information and extract physical properties of a music by performing an audio signal process on the a music file and extract an emotional property that corresponds to the physical properties of the music. The processor is further configured to connect and store the music information of the music file and the emotional property of the music and search music that corresponds to the stress information to recommend the music for the driver.
    Type: Application
    Filed: November 18, 2013
    Publication date: June 19, 2014
    Applicant: Hyundai Motor Company
    Inventors: Woochul Jung, Young Woo Choi
  • Patent number: 8720252
    Abstract: A quality control apparatus for a gas diffusion layer includes a support, at least one first pressure device, a plate provided below the first pressure device and supporting the pressure applied to the gas diffusion layer sample, a first controller controlling the compression of the first pressure device, a thickness gauge measuring the thickness of the gas diffusion layer sample, a flow channel formed in the sample compressing portion to discharge a gas to the gas diffusion layer sample, a gas supply controller, a gas supply source, a pressure gauge, two fixing devices, a third controller controlling the compression of the fixing devices, two second pressure, a second controller controlling the compression of the second pressure device, a stopper, a protrusion, and a load cell.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: May 13, 2014
    Assignee: Korea Institute of Energy Research
    Inventors: Gu-Gon Park, Minjin Kim, Young-Jun Sohn, Young-Woo Choi, Seok-Hee Park, Sung-Dae Yim, Tae-Hyun Yang, Young-Gi Yoon, Won-Yong Lee, Chang-Soo Kim
  • Patent number: 8685590
    Abstract: An apparatus for pre-activation of a polymer electrolyte fuel cell includes a first plate and a second plate hot pressing the unit cell stack, each having a flow channel supplying water vapor to opposing inner surfaces with the unit cell stack therebetween and including a resistor producing heat, a compressor, a temperature controller and a water vapor supplier connected to the flow channels of the plates. The apparatus for pre-activating a polymer electrolyte fuel cell may be used to prepare a prep-activated integrated body of a polymer electrolyte fuel cell membrane electrode assembly and gas diffusion layers by performing hot pressing while supplying water vapor to the unit cell stack to hydrate the polymer electrolyte membrane.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 1, 2014
    Assignee: Korea Institute of Energy Research
    Inventors: Gu-Gon Park, Minjin Kim, Young-Jun Sohn, Young-Woo Choi, Seok-Hee Park, Sung-Dae Yim, Tae-Hyun Yang, Young-Gi Yoon, Won-Yong Lee, Chang-Soo Kim
  • Publication number: 20140080022
    Abstract: Provided are an apparatus and a method for managing a fuel cell vehicle system, and more particularly, an apparatus and a method for managing a fuel cell vehicle system capable of optimally maintaining a driving method based on environmental information and product information.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: Korea Institute of Energy Research
    Inventors: Min Jin Kim, Young-Jun Sohn, Gu-Gon Park, Byung Chan Bae, Sung-Dae Yim, Young-Woo Choi, Seok-Hee Park, Young-Gi Yoon, Tae-Hyun Yang, Won-Yong Lee, Chang-Soo Kim
  • Publication number: 20140080023
    Abstract: Provided are an apparatus and a method for managing a stationary fuel cell system, and more particularly, an apparatus and a method for managing a stationary fuel cell system capable of optimally maintaining a driving method based on environmental information and product information.
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: Korea Institute of Energy Research
    Inventors: Min Jin Kim, Young-Jun Sohn, Gu-Gon Park, Byung Chan Bae, Sung-Dae Yim, Young-Woo Choi, Seok-Hee Park, Young-Gi Yoon, Tae-Hyun Yang, Won-Yong Lee, Chang-Soo Kim
  • Publication number: 20140023952
    Abstract: Provided are a method for preparing a catalyst layer by an in-situ sol-gel reaction of tetraethoxysilane, and a fuel cell including the catalyst layer prepared thereby. Addition of silica mitigates specific adsorption of sulfonate groups contained in a Nafion ionomer on a Pt catalyst layer in a high-voltage region where the role of a catalyst predominates, resulting in improvement of ORR performance.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 23, 2014
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Sung-Dae Yim, Taeyoung Kim, Seok-Hee Park, Young-Gi Yoon, Gu-Gon Park, Tae-Hyun Yang, Young-Woo Choi, Byung-Chan Bae, Young-Jun Son, Min-Jin Kim, Chang-Soo Kim
  • Publication number: 20130288157
    Abstract: An anion exchange composite membrane is filled with crosslinked polymer electrolytes for fuel cells.
    Type: Application
    Filed: August 17, 2012
    Publication date: October 31, 2013
    Inventors: Young Woo Choi, Mi Soon Lee, Tae Hyun Yang, Chang Soo Kim, Young Gi Yoon, Seok Hee Park, Sung Dae Yim, Gu Gon Park, Young Jun Sohn, Minjin Kim, Byungchan Bae
  • Publication number: 20130253080
    Abstract: The present disclosure relates to a method for preparing sulfonated polyarylene ether sulfone copolymer used in fabricating an electrolyte polymer membrane which is core material, the method comprising: A) mixing monomers, 4,4?-dihydroxydiphenyl; bis(4-chlorophenyl)sulfone or bis(4-fluorophenyl)sulfone; and 3,3?-disulfonated-4,4?-chlorodiphenyl sulfone with K2CO3; B) dissolving said mixture in a reaction solvent, i.e. N,N-Dimethylacetamide; C) reacting said dissolved mixture for 16˜20 hours at a temperature of 160˜190° C.; and D) precipitating, cleaning and filtering, and then drying said reactant.
    Type: Application
    Filed: August 17, 2012
    Publication date: September 26, 2013
    Inventors: Mi Soon LEE, Young Woo Choi, Tae Hyun Yang, Chang Soo Kim, Young Gi Yoon, Seok Hee Park, Sung Dae Yim, Gu Gon Park, Young Jun Sohn, Minjin Kim, Byungchan Bae
  • Patent number: 8430598
    Abstract: Provided is a method of remediating cyanide-contaminated soil. The method is provided to remediate soil contaminated with cyanide and treat the cyanide, which includes collecting the soil contaminated with first cyanide in a solid state and second cyanide in a gaseous or dissolved state, dissociating cyanide by mixing the soil with an alkali washing solution, dissolving the first cyanide in a solid state in the washing solution, and transferring the second cyanide in a dissolved state dissociated from the soil to the washing solution, dissociating the soil from the washing solution, precipitating the first cyanide in a solid state by acidifying the washing solution containing the cyanide, and performing post-treatment on the first cyanide after the first cyanide precipitated in a solid state is dissociated from the washing solution.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: April 30, 2013
    Assignee: Korea Institute of Geoscience and Mineral Resources (KIGAM)
    Inventors: Jae-Gon Kim, Jung-Hwa Lee, Young-Woo Choi, Yong-Chan Cho
  • Publication number: 20110271742
    Abstract: A quality control apparatus for a gas diffusion layer includes a support, at least one first pressure device, a plate provided below the first pressure device and supporting the pressure applied to the gas diffusion layer sample, a first controller controlling the compression of the first pressure device, a thickness gauge measuring the thickness of the gas diffusion layer sample, a flow channel formed in the sample compressing portion to discharge a gas to the gas diffusion layer sample, a gas supply controller, a gas supply source, a pressure gauge, two fixing devices, a third controller controlling the compression of the fixing devices, two second pressure, a second controller controlling the compression of the second pressure device, a stopper, a protrusion, and a load cell.
    Type: Application
    Filed: October 18, 2010
    Publication date: November 10, 2011
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Gu-Gon Park, Minjin Kim, Young-Jun Sohn, Young-Woo Choi, Seok-Hee Park, Sung-Dae Yim, Tae-Hyun Yang, Young-Gi Yoon, Won-Yong Lee, Chang-Soo Kim
  • Publication number: 20110236774
    Abstract: An apparatus for pre-activation of a polymer electrolyte fuel cell includes a first plate and a second plate hot pressing the unit cell stack, each having a flow channel supplying water vapor to opposing inner surfaces with the unit cell stack therebetween and including a resistor producing heat, a compressor, a temperature controller and a water vapor supplier connected to the flow channels of the plates. The apparatus for pre-activating a polymer electrolyte fuel cell may be used to prepare a prep-activated integrated body of a polymer electrolyte fuel cell membrane electrode assembly and gas diffusion layers by performing hot pressing while supplying water vapor to the unit cell stack to hydrate the polymer electrolyte membrane.
    Type: Application
    Filed: January 14, 2011
    Publication date: September 29, 2011
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Gu-Gon Park, Minjin Kim, Young-Jun Sohn, Young-Woo Choi, Seok-Hee Park, Sung-Dae Yim, Tae-Hyun Yang, Young-Gi Yoon, Won-Yong Lee, Chang-Soo Kim
  • Publication number: 20110176873
    Abstract: Provided is a method of remediating cyanide-contaminated soil. The method is provided to remediate soil contaminated with cyanide and treat the cyanide, which includes collecting the soil contaminated with first cyanide in a solid state and second cyanide in a gaseous or dissolved state, dissociating cyanide by mixing the soil with an alkali washing solution, dissolving the first cyanide in a solid state in the washing solution, and transferring the second cyanide in a dissolved state dissociated from the soil to the washing solution, dissociating the soil from the washing solution, precipitating the first cyanide in a solid state by acidifying the washing solution containing the cyanide, and performing post-treatment on the first cyanide after the first cyanide precipitated in a solid state is dissociated from the washing solution.
    Type: Application
    Filed: April 8, 2010
    Publication date: July 21, 2011
    Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOUCES (KIGAM)
    Inventors: Jae-Gon KIM, Jung-Hwa LEE, Young-Woo CHOI, Yong-Chan CHO
  • Publication number: 20110081587
    Abstract: Provided is an apparatus for detecting leak in fuel cells. The apparatus includes: a detection gas intake unit connected to a detection gas storage; a supply unit supplying detection gas to supply manifolds of the fuel cells; a recovering unit connected to exhaust manifolds of the fuel cells; and a measuring unit measuring pressure of the detection gas supplied to the fuel cells, wherein in the fuel cells, a product and cooling fluid are exhausted through the exhaust manifolds after cathode/anode reaction gas and cooling fluid are supplied to the inside through the supply manifolds to generate an electrochemical reaction. Accordingly, presence of leak and leaked portions of the entire fuel cells are detected by using an inert detection gas.
    Type: Application
    Filed: August 27, 2010
    Publication date: April 7, 2011
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Gu-Gon Park, Minjin Kim, Young-Jun Sohn, Young-Woo Choi, Seok-Hee Park, Sung-Dae Yim, Tae-Hyun Yang, Young-Gi Yoon, Won-Yong Lee, Chang-Soo Kim
  • Publication number: 20110059387
    Abstract: A highly proton conductive polymer electrolyte composite membrane for a fuel cell is provided. The composite membrane includes crosslinked polyvinylsulfonic acid. The composite membrane is produced by impregnating a mixed solution of vinylsulfonic acid as a monomer, a hydroxyl group-containing bisacrylamide as a crosslinking agent and a photoinitiator or thermal initiator into a microporous polymer support, polymerizing the monomer, and simultaneously thermal-crosslinking or photo-crosslinking the polymer to form a chemically crosslinked polymer electrolyte membrane which is also physically crosslinked with the porous support. Further provided is a method for producing the composite membrane in a simple manner at low cost as well as a fuel cell using the composite membrane.
    Type: Application
    Filed: December 23, 2008
    Publication date: March 10, 2011
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Young Woo Choi, Jin Soo Park, Chang Soo Kim, Gu Gon Park, Seok Hee Park, Sung Dae Lim, Tae Hyun Yang, Young Gi Yoon, Min Jin Kim, Kyoung Youn Kim, Young Jun Sohn, Won Yong Lee
  • Publication number: 20110055832
    Abstract: A host device includes a communication interface unit to be connected to a workform performing device, a workform generation unit to perform a job and generate a workform to which a universal plug-in is applied, a storage unit to store at least one of the workform generated by the workform generation unit and a workform transmitted from an external device, and a control unit to control the communication interface unit to transmit the at least one stored workform to the workform performing device according to a command to perform a job.
    Type: Application
    Filed: February 18, 2010
    Publication date: March 3, 2011
    Applicant: Samsung Electronics Co., Ltd
    Inventor: Young-woo Choi
  • Patent number: 7839395
    Abstract: A flat panel display device may improve picture quality by compensating a panel defect by use of a circuit and a picture quality controlling method. A flat panel display device includes a display panel. A memory stores a location information and a compensation value for a panel defect location on the display panel. A first converter calculates a brightness and color difference signals from red, green, blue video signals to be displayed in the display panel. The first converter expands the number of data bits of the brightness signal to generate the expanded brightness signal. A compensating part generates a compensated brightness signal by increasing or decreasing the expanded brightness signal of the video signal to be displayed in the panel defect location. A second converter calculates the red, green, blue signals from the color difference signal and the compensated brightness signal, and generates the compensated video signal by reducing the number of bits of the calculated red, green, blue signals.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: November 23, 2010
    Assignee: LG. Display Co., Ltd.
    Inventors: In Jae Chung, Chul Sang Jang, Young Woo Choi, Jong Hee Hwang
  • Publication number: 20100058310
    Abstract: A workform management apparatus and method, an image forming apparatus, and a workform management system are provided. In the workform management apparatus, a workform storage unit stores one or more workforms, an update execution unit updates the stored workforms in accordance with a preset workform update option, and a main control unit controls the workform storage unit to store the updated workforms.
    Type: Application
    Filed: June 5, 2009
    Publication date: March 4, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Young-woo CHOI
  • Patent number: 7574505
    Abstract: A home server for service convergence and energy-saving, and a method for controlling the same are disclosed to provide broadcast services, Internet services, game platform services, and a broadband network distribution function required by each home network. The home server includes a broadcast processor, a service, a network distribution, a power-supply unit for providing a power-supply signal to each module of the home server, and a power-supply controller. The power-supply controller controls on/off operations of the power-supply signal transmitted from the power-supply unit to each module of the home server according to services and operation states of the service processor and the network distribution unit.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: August 11, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Wan Ki Park, Chang Sic Choi, Young Woo Choi, Youn Kwae Jeong
  • Publication number: 20060119884
    Abstract: An image forming device, a host device connected to the image forming device, an image forming system, and a controlling method thereof. The image forming device includes a customer replaceable unit memory (CRUM) provided to a recording material storage medium to store latest version information of firmware of the image forming device, and a controller to collect present version information of the firmware of the image forming device and to provide an old version notification message if the present version information of the firmware of the image forming device is old compared to the latest version information. Accordingly, a user can update the firmware or software conveniently.
    Type: Application
    Filed: November 8, 2005
    Publication date: June 8, 2006
    Inventor: Young-woo Choi