Patents by Inventor Woong Ju

Woong Ju 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: 20240097161
    Abstract: The present disclosure provides a fuel cell membrane humidifier capable of regulating dry gas pressure in the fuel cell membrane humidifier by discharging dry gas to an outside according to the dry gas pressure in the membrane humidifier and a fuel cell system including the same, and the fuel cell membrane humidifier according to an embodiment of the present disclosure includes: a mid-case; a cap fastened to the mid-case and having a dry gas discharge hole through which dry gas is discharged; and a pressure regulator formed in the cap and partially opening the dry gas discharge hole according to pressure of dry gas in the cap to regulate the pressure of the dry gas in the cap.
    Type: Application
    Filed: December 30, 2021
    Publication date: March 21, 2024
    Inventors: Jung Kun HER, Do Woo KIM, Woong Jeon AN, Kyoung Ju KIM
  • Publication number: 20240088410
    Abstract: The present invention relates to a fuel cell membrane humidifier, which improves binding force between a potting part and an inner case, and thus can maintain the binding force even if a fuel cell is repeatedly operated and stopped. A fuel cell membrane humidifier according to an embodiment of the present invention comprises: a humidification module for humidifying air, supplied from the outside, with the moisture of exhaust gas discharged from a fuel cell stack; and caps, which are each coupled to the both ends of the humidification module. The humidification module comprises at least one cartridge comprising: an inner case; a plurality of hollow fiber membranes placed inside the inner case; and a potting part which fixes the ends of the plurality of hollow fiber membranes, and which is filled in and coupled to the end part of the inner case.
    Type: Application
    Filed: March 8, 2022
    Publication date: March 14, 2024
    Inventors: Jung Kun HER, Do Woo KIM, Woong Jeon AN, Kyoung Ju Kim
  • Publication number: 20240079619
    Abstract: Disclosed is a fuel cell system. The fuel cell system of the present invention is characterized by a gas-liquid separator for removing foreign substances in air between a stack and an air supply unit. So the present invention can therefore prevent the foreign substances from being supplied to the stack and improve the function and extend the lifetime of the stack.
    Type: Application
    Filed: January 24, 2022
    Publication date: March 7, 2024
    Inventors: Jung Kun HER, Kyoung Ju KIM, Woong Jeon AHN, Hyoung Mo YANG
  • Publication number: 20240079613
    Abstract: The present invention relates to a membrane humidifier for a fuel cell which can improve humidification efficiency by selectively supplying exhaust gas discharged from a fuel cell stack to each part of a hollow fiber membrane module. A membrane humidifier for a fuel cell according to an embodiment of the present invention comprises: a hollow fiber membrane module, a humidification module, and an active flow control unit formed between a fuel cell stack and the humidification module and automatically controlling the exhaust gas discharged from the fuel cell stack so as to be supplied to at least one selected from among a first and an exhaust gas inlets.
    Type: Application
    Filed: March 3, 2022
    Publication date: March 7, 2024
    Inventors: Jung Kun HER, Do Woo KIM, Woong Jeon AN, Kyoung Ju KIM
  • Publication number: 20240079612
    Abstract: The present invention relates to a fuel cell membrane humidifier having an improved coupling force between a potting portion and an inner case so that the coupling force can be maintained even when a fuel cell is repeatedly driven and stopped, the fuel cell membrane humidifier according to an embodiment of the present invention comprising: a humidification module for humidifying, with the moisture in exhaust gas discharged from a fuel cell stack, the air supplied from the outside; and caps respectively coupled to both ends of the humidification module. The humidification module comprises at least one cartridge including an inner case, a plurality of hollow-fiber membranes arranged in the inner case, the potting portion fixing the ends of the plurality of hollow-fiber membranes, and a laser bonding surface which is formed between the inner case and the potting portion through a laser bonding.
    Type: Application
    Filed: March 7, 2022
    Publication date: March 7, 2024
    Inventors: Jung Kun HER, Do Woo KIM, Woong Jeon AN, Kyoung Ju KIM
  • Publication number: 20160265061
    Abstract: The present invention relates to a composition, a kit and a method for diagnosing ovarian cancer metastasis or predicting risk of the metastasis by detecting methylation levels at CpG sites of one or more genes selected from the group consisting of ADAM12 (a disintegrin and metalloproteinase 12), NTN4 (netrin 4), and PTGS2 (prostaglandin-endoperoxide synthase 2).
    Type: Application
    Filed: September 4, 2014
    Publication date: September 15, 2016
    Applicant: EWHA UNIVERSITY - INDUSTRY COLLABORATION FOUNDATION
    Inventors: Jung-Hyuck AHN, Woong JU, Hye-Youn SUNG
  • Publication number: 20160217833
    Abstract: A sense amplifier may include an amplifying section configured to amplify data of a segment line pair when an enable signal is activated and output amplified data to a local line pair, and including latches electrically coupled in a cross-coupled type. The sense amplifier may include a switching section configured to selectively electrically couple the segment line pair and the local line pair in response to an input/output switch signal.
    Type: Application
    Filed: June 5, 2015
    Publication date: July 28, 2016
    Inventors: Kyu Nam LIM, Woong Ju JANG
  • Patent number: 9401185
    Abstract: A sense amplifier may include an amplifying section configured to amplify data of a segment line pair when an enable signal is activated and output amplified data to a local line pair, and including latches electrically coupled in a cross-coupled type. The sense amplifier may include a switching section configured to selectively electrically couple the segment line pair and the local line pair in response to an input/output switch signal.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: July 26, 2016
    Assignee: SK hynix Inc.
    Inventors: Kyu Nam Lim, Woong Ju Jang
  • Publication number: 20160132860
    Abstract: Disclosed is a method of processing a payment using an IMS. The method includes obtaining information on a chat room generated through an instant message application between a first user and at least one second user with respect to a payment transaction of the first user, updating a payment account of the first user and a payment account of the at least one second user in response to processing the payment transaction of the first user, and outputting a message associated with the payment transaction of the first user through the chat room.
    Type: Application
    Filed: August 28, 2015
    Publication date: May 12, 2016
    Inventors: Young Su KO, Woong Ju JEONG, Soo Young KIM, Dong Bin OH, Sung Sik KANG, Eun Hee KIM, Seh Wha HONG
  • Patent number: 8971142
    Abstract: A semiconductor memory device includes a bit line pre-sense amplifier configured to sense a potential difference between bit line pair and amplify the voltages of the bit line pair based on the sensed potential difference, a bit line main sense amplifier configured to sense a potential difference between the bit line pair and amplify the voltages of the bit line pair to first and second driving voltages based on the sensed potential difference, and a power supplying controller configured to supply the second driving voltage to the bit line pre-sense amplifier and the bit line main sense amplifier.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: March 3, 2015
    Assignee: SK Hynix Inc.
    Inventor: Woong-Ju Jang
  • Publication number: 20140243218
    Abstract: The present invention relates to a composition, a kit and a method for diagnosing ovarian cancer metastasis or predicting the risk of metastasis by detecting methylation levels at CpG sites of one or more gene promoters selected from the group consisting of AGR2 (anterior gradient 2), CA9 (carbonic adj anhydrase 9), GABRP (gamma-aminobutyric acid receptor pi subunit), IFITM1 (interferon-induced transmembrane 1) and MUC13 (mucin 13).
    Type: Application
    Filed: February 20, 2014
    Publication date: August 28, 2014
    Applicant: Ewha University - Industry Collaboration Foundation
    Inventors: Jung-Hyuck AHN, Hye-Youn Sung, Woong Ju
  • Patent number: 8743639
    Abstract: A semiconductor memory device includes a switching unit coupled between a local sense amplifier and a bit line sense amplifier and configured to be turned on in response to a switching signal which is enabled in synchronization with an enable signal for enabling the local sense amplifier and disabled at a time point where a preset period passes after a first power for enabling the bit line sense amplifier is precharged.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: June 3, 2014
    Assignee: SK Hynix Inc.
    Inventors: Woong Ju Jang, Kyu Nam Lim
  • Patent number: 8699282
    Abstract: A semiconductor memory apparatus includes: a first sense amplification unit including first and second inverters configured to be driven to voltage levels of a power driving signal and a ground driving signal and forming a latch structure between a bit line and a bit line bar; and a second sense amplification unit including first and second transistors configured to be driven to the voltage level of the ground driving signal and forming a latch structure between the bit line and the bit line bar when an activated switching signal is applied, wherein a threshold voltage of the second sense amplification unit is set lower than that of the first sense amplification unit.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: April 15, 2014
    Assignee: SK Hynix Inc.
    Inventors: Kyu Nam Lim, Woong Ju Jang
  • Publication number: 20140064005
    Abstract: A semiconductor memory device includes a bit line pre-sense amplifier configured to sense a potential difference between bit line pair and amplify the voltages of the bit line pair based on the sensed potential difference, a bit line main sense amplifier configured to sense a potential difference between the bit line pair and amplify the voltages of the bit line pair to first and second driving voltages based on the sensed potential difference, and a power supplying controller configured to supply the second driving voltage to the bit line pre-sense amplifier and the bit line main sense amplifier.
    Type: Application
    Filed: December 13, 2012
    Publication date: March 6, 2014
    Applicant: SK HYNIX INC.
    Inventor: Woong-Ju JANG
  • Publication number: 20130176802
    Abstract: A semiconductor memory device includes a switching unit coupled between a local sense amplifier and a bit line sense amplifier and configured to be turned on in response to a switching signal which is enabled in synchronization with an enable signal for enabling the local sense amplifier and disabled at a time point where a preset period passes after a first power for enabling the bit line sense amplifier is precharged.
    Type: Application
    Filed: June 12, 2012
    Publication date: July 11, 2013
    Applicant: SK HYNIX INC.
    Inventors: Woong Ju JANG, Kyu Nam LIM
  • Publication number: 20130155784
    Abstract: A semiconductor memory apparatus includes: a first sense amplification unit including first and second inverters configured to be driven to voltage levels of a power driving signal and a ground driving signal and forming a latch structure between a bit line and a bit line bar; and a second sense amplification unit including first and second transistors configured to be driven to the voltage level of the ground driving signal and forming a latch structure between the bit line and the bit line bar when an activated switching signal is applied, wherein a threshold voltage of the second sense amplification unit is set lower than that of the first sense amplification unit.
    Type: Application
    Filed: July 31, 2012
    Publication date: June 20, 2013
    Applicant: SK HYNIX INC.
    Inventors: Kyu Nam LIM, Woong Ju JANG
  • Publication number: 20120193758
    Abstract: A semiconductor apparatus includes a first capacitor formed in a normal cell area and including a lower electrode coupled to one end of a cell transistor, and a second capacitor formed in a dummy cell area and including a lower electrode coupled to a power terminal.
    Type: Application
    Filed: August 27, 2011
    Publication date: August 2, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Mi Hyeon Jo, Woong Ju JANG, Ki Myung KYUNG