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).
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Publication number: 20240097161Abstract: 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: ApplicationFiled: December 30, 2021Publication date: March 21, 2024Inventors: Jung Kun HER, Do Woo KIM, Woong Jeon AN, Kyoung Ju KIM
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Publication number: 20240088410Abstract: 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: ApplicationFiled: March 8, 2022Publication date: March 14, 2024Inventors: Jung Kun HER, Do Woo KIM, Woong Jeon AN, Kyoung Ju Kim
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Publication number: 20240079619Abstract: 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: ApplicationFiled: January 24, 2022Publication date: March 7, 2024Inventors: Jung Kun HER, Kyoung Ju KIM, Woong Jeon AHN, Hyoung Mo YANG
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Publication number: 20240079613Abstract: 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: ApplicationFiled: March 3, 2022Publication date: March 7, 2024Inventors: Jung Kun HER, Do Woo KIM, Woong Jeon AN, Kyoung Ju KIM
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Publication number: 20240079612Abstract: 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: ApplicationFiled: March 7, 2022Publication date: March 7, 2024Inventors: Jung Kun HER, Do Woo KIM, Woong Jeon AN, Kyoung Ju KIM
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Publication number: 20160265061Abstract: 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: ApplicationFiled: September 4, 2014Publication date: September 15, 2016Applicant: EWHA UNIVERSITY - INDUSTRY COLLABORATION FOUNDATIONInventors: Jung-Hyuck AHN, Woong JU, Hye-Youn SUNG
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Publication number: 20160217833Abstract: 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: ApplicationFiled: June 5, 2015Publication date: July 28, 2016Inventors: Kyu Nam LIM, Woong Ju JANG
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Patent number: 9401185Abstract: 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: GrantFiled: June 5, 2015Date of Patent: July 26, 2016Assignee: SK hynix Inc.Inventors: Kyu Nam Lim, Woong Ju Jang
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Publication number: 20160132860Abstract: 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: ApplicationFiled: August 28, 2015Publication date: May 12, 2016Inventors: Young Su KO, Woong Ju JEONG, Soo Young KIM, Dong Bin OH, Sung Sik KANG, Eun Hee KIM, Seh Wha HONG
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Patent number: 8971142Abstract: 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: GrantFiled: December 13, 2012Date of Patent: March 3, 2015Assignee: SK Hynix Inc.Inventor: Woong-Ju Jang
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Publication number: 20140243218Abstract: 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: ApplicationFiled: February 20, 2014Publication date: August 28, 2014Applicant: Ewha University - Industry Collaboration FoundationInventors: Jung-Hyuck AHN, Hye-Youn Sung, Woong Ju
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Patent number: 8743639Abstract: 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: GrantFiled: June 12, 2012Date of Patent: June 3, 2014Assignee: SK Hynix Inc.Inventors: Woong Ju Jang, Kyu Nam Lim
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Patent number: 8699282Abstract: 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: GrantFiled: July 31, 2012Date of Patent: April 15, 2014Assignee: SK Hynix Inc.Inventors: Kyu Nam Lim, Woong Ju Jang
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Publication number: 20140064005Abstract: 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: ApplicationFiled: December 13, 2012Publication date: March 6, 2014Applicant: SK HYNIX INC.Inventor: Woong-Ju JANG
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Publication number: 20130176802Abstract: 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: ApplicationFiled: June 12, 2012Publication date: July 11, 2013Applicant: SK HYNIX INC.Inventors: Woong Ju JANG, Kyu Nam LIM
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Publication number: 20130155784Abstract: 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: ApplicationFiled: July 31, 2012Publication date: June 20, 2013Applicant: SK HYNIX INC.Inventors: Kyu Nam LIM, Woong Ju JANG
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Publication number: 20120193758Abstract: 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: ApplicationFiled: August 27, 2011Publication date: August 2, 2012Applicant: HYNIX SEMICONDUCTOR INC.Inventors: Mi Hyeon Jo, Woong Ju JANG, Ki Myung KYUNG