Patents by Inventor Woo-Seok Lee

Woo-Seok Lee 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: 20240194903
    Abstract: A fuel supply control apparatus of an electrochemical cell uniformly distributes fuel supplied to the electrochemical cell. The fuel supply control apparatus includes a separator configured to have a fuel inlet, a fuel outlet, and a plurality of fuel channels arranged between the fuel inlet and the fuel outlet, and a fuel supply control plate stacked between the separator and a solid oxide cell and configured to uniformly distribute and supply fuel, flowing into the fuel channels, to the solid oxide cell, and the fuel supply control plate has a plurality of slits configured to extend in a direction orthogonal to the fuel channels and to be arranged in a length direction of the fuel channels.
    Type: Application
    Filed: May 16, 2023
    Publication date: June 13, 2024
    Inventors: In Chang Chu, Jong Sup Hong, Jang Hyun Lim, Woo Seok Lee, Joon Hoon Cho
  • Publication number: 20240196548
    Abstract: Electric equipment comprises: a housing; a printed circuit board disposed in the housing and including a first hole; and a cover coupled to the upper surface of the housing and including a second hole, wherein the housing comprises: a first region arranged to pass through the first hole; a second region disposed above the first region and arranged to pass through the second hole; and a third region disposed above the second region and placed on the upper surface of the cover.
    Type: Application
    Filed: April 8, 2022
    Publication date: June 13, 2024
    Inventors: Min Oak KIM, Min Jung SHIN, Woo Seok LEE, Ki Eun YOON
  • Publication number: 20230145403
    Abstract: A fuel cell stack including a separator having a gas equal distribution structure includes a cell formed by sequentially stacking an air electrode, an electrolyte, and a fuel electrode, an air electrode current collector, an air electrode separator, a fuel electrode current collector, and a fuel electrode separator. The air path or the fuel path includes a first channel through which the air or the fuel is introduced from the outside and which is formed to extend to a predetermined length, an auxiliary channel branched off from the first channel so that the air or the fuel moves from the first channel, and a second channel connected to an end portion of the auxiliary channel and formed to extend to a predetermined length so that the air or the fuel moved from the auxiliary channel is moved and discharged to the outside.
    Type: Application
    Filed: November 11, 2022
    Publication date: May 11, 2023
    Inventors: Jong Sup Hong, Woo Seok Lee
  • Patent number: 11646430
    Abstract: The present disclosure relates to a fuel cell hot box for improving the system efficiency of a fuel cell, wherein all of a fuel cell stack part, an afterburner, a reformer, and an air-heat exchange unit are provided inside a main chamber, fuel may be reformed and preheated using heat of the fuel cell stack part and heat of combustion gas generated by the afterburner, and at the same time, air may be also preheated. Thus, wasting energy can be prevented, the lifetime of the entire system can be increased by cooling the fuel cell stack part and increasing the durability of the fuel cell stack part against thermal stress, and a plurality of fuel cell stack parts share the center chamber, thereby simplifying a configuration of the fuel cell hot box.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: May 9, 2023
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Jong Sup Hong, Ji Young Kim, Woo Seok Lee, Dong Young Yoon
  • Patent number: 11557776
    Abstract: A fuel cell hot box for improving the system efficiency of a fuel cell. Fuel cell stack parts, an after burner, a reformer, an air pre-heating zone, and a fuel-heat exchanger are provided in a housing allowing heat of the fuel cell stack parts and heat of combustion gas generated in the after burner to be used for reforming, preheating fuel and preheating air at the same time to avoid wasting energy. The fuel cell stack parts under thermal stress can be cooled to improve durability of the stack parts to increase a lifetime of a total system, and the stack parts can share the central chamber part to simplify a structure of the fuel cell hot box. In addition, the reformer includes an opening and closing unit to properly distribute the high-temperature combustion gas so that a reforming ratio is adjustable according to an operating condition of the fuel.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: January 17, 2023
    Assignee: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
    Inventors: Jong Sup Hong, Ji Young Kim, Woo Seok Lee, Dong Young Yoon
  • Publication number: 20220407104
    Abstract: Disclosed herein are a fuel cell manifold and a fuel cell stack including the same. The manifold may include a cover plate, an air guide plate configured to guide a flow of air in the manifold, a fuel guide plate configured to guide a flow of fuel in the manifold, and an auxiliary plate providing a passage for inflow of air and outflow of fuel.
    Type: Application
    Filed: December 7, 2021
    Publication date: December 22, 2022
    Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jong Ho LEE, Kyung Joong YOON, Sang Hyeok LEE, Min Jun OH, Jong Sup HONG, Woo Seok LEE
  • Publication number: 20220077478
    Abstract: The present disclosure relates to a fuel cell hot box for improving the system efficiency of a fuel cell, wherein all of a fuel cell stack part, an afterburner, a reformer, and an air-heat exchange unit are provided inside a main chamber, fuel may be reformed and preheated using heat of the fuel cell stack part and heat of combustion gas generated by the afterburner, and at the same time, air may be also preheated. Thus, wasting energy can be prevented, the lifetime of the entire system can be increased by cooling the fuel cell stack part and increasing the durability of the fuel cell stack part against thermal stress, and a plurality of fuel cell stack parts share the center chamber, thereby simplifying a configuration of the fuel cell hot box.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 10, 2022
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Jong Sup HONG, Ji Young KIM, Woo Seok LEE, Dong Young YOON
  • Publication number: 20220006107
    Abstract: A fuel cell hot box for improving the system efficiency of a fuel cell. Fuel cell stack parts, an after burner, a reformer, an air pre-heating zone, and a fuel-heat exchanger are provided in a housing allowing heat of the fuel cell stack parts and heat of combustion gas generated in the after burner to be used for reforming, preheating fuel and preheating air at the same time to avoid wasting energy. The fuel cell stack parts under thermal stress can be cooled to improve durability of the stack parts to increase a lifetime of a total system, and the stack parts can share the central chamber part to simplify a structure of the fuel cell hot box. In addition, the reformer includes an opening and closing unit to properly distribute the high-temperature combustion gas so that a reforming ratio is adjustable according to an operating condition of the fuel.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Inventors: Jong Sup Hong, Ji Young Kim, Woo Seok Lee, Dong Young Yoon
  • Patent number: 10859450
    Abstract: The present disclosure discloses a strain sensor and a method of fabricating the same. The strain sensor according to an embodiment of the present disclosure includes an X-axis sensor formed on a flexible insulating substrate and responsible for sensing X-axis strain; a Y-axis sensor formed on the flexible insulating substrate to be orthogonal to the X-axis sensor and responsible for sensing Y-axis strain; a metal electrode formed on a region of the flexible insulating substrate where the X-axis sensor and the Y-axis sensor are not formed; and an encapsulation layer formed on the X-axis sensor, the Y-axis sensor, and the metal electrode. In this case, the X-axis sensor and the Y-axis sensor have a metal-insulator heterostructure.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: December 8, 2020
    Assignee: Korea University Research and Business Foundation
    Inventors: Soong Ju Oh, Woo Seok Lee, Dong Gyu Kim
  • Publication number: 20200256748
    Abstract: The present disclosure discloses a strain sensor and a method of fabricating the same. The strain sensor according to an embodiment of the present disclosure includes an X-axis sensor formed on a flexible insulating substrate and responsible for sensing X-axis strain; a Y-axis sensor formed on the flexible insulating substrate to be orthogonal to the X-axis sensor and responsible for sensing Y-axis strain; a metal electrode formed on a region of the flexible insulating substrate where the X-axis sensor and the Y-axis sensor are not formed; and an encapsulation layer formed on the X-axis sensor, the Y-axis sensor, and the metal electrode. In this case, the X-axis sensor and the Y-axis sensor have a metal-insulator heterostructure.
    Type: Application
    Filed: September 9, 2019
    Publication date: August 13, 2020
    Applicant: Korea University Research and Business Foundation
    Inventors: Soong Ju OH, Woo Seok LEE, Dong Gyu KIM
  • Patent number: 9864010
    Abstract: An interconnection evaluation system according to the present disclosure includes a switchboard including at least one endpoint, at least one endpoint contact tester configured to transmit a digital input signal obtained from each endpoint, an automation tester configured to output a preset digital output signal to the switchboard, and to generate interconnection information at each endpoint by reflecting the digital output signal and digital input signal, and an interface unit configured to generate a switchboard status information of switchboard by reflecting the interconnection information.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: January 9, 2018
    Assignee: LSIS CO., LTD.
    Inventors: Woo Seok Lee, Yong Gee Cho
  • Patent number: 9735627
    Abstract: An input driver includes a power converting unit and a level adjusting unit. The power converting unit is configured to generate a first power and a second power having an anti-phase relationship based on input power, and process the first power and the second power as differential inputs to output a third power. The level adjusting unit is configured to adjust a voltage level of the third power and output the adjusted power as an input to a power amplifier.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: August 15, 2017
    Assignees: Samsung Electro-Mechanics Co., Ltd., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Si Hyung Kim, Woo Seok Lee, Youngoo Yang, Hwi Seob Lee, Chul Gyun Park, Sung Uk Lee
  • Publication number: 20160241198
    Abstract: An input driver includes a power converting unit and a level adjusting unit. The power converting unit is configured to generate a first power and a second power having an anti-phase relationship based on input power, and process the first power and the second power as differential inputs to output a third power. The level adjusting unit is configured to adjust a voltage level of the third power and output the adjusted power as an input to a power amplifier.
    Type: Application
    Filed: January 20, 2016
    Publication date: August 18, 2016
    Applicants: Samsung Electro-Mechanics Co., Ltd., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Si Hyung KIM, Woo Seok LEE, Youngoo YANG, Hwi Seob LEE, Chul Gyun PARK, Sung Uk LEE
  • Patent number: 9243982
    Abstract: Provided is a measuring apparatus and method of train wheel wear, the apparatus including a speed measuring unit measuring speed of a train, a position measuring unit measuring a position of the train, and a calculation unit calculating abrasiveness of a train wheel on a train based on the measured speed and position of the train, whereby status of the train wheel can be accurately learned to minimize the number of devices that may be additionally installed, and to quickly measure abrasiveness of the train wheel as well.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: January 26, 2016
    Assignee: LSIS Co., Ltd.
    Inventors: Woo Seok Lee, Yong Gee Cho
  • Patent number: D740281
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: October 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Moon Kim, Woo-Seok Lee
  • Patent number: D748090
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: January 26, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Moon Kim, Woo-Seok Lee
  • Patent number: D749570
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: February 16, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Woo-Seok Lee
  • Patent number: D751558
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: March 15, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Woo-Seok Lee
  • Patent number: D752579
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: March 29, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Woo-Seok Lee
  • Patent number: D754124
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: April 19, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Moon Kim, Woo-Seok Lee