Patents by Inventor Ji Won Yu

Ji Won Yu 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: 20240368221
    Abstract: The present invention relates to an Impatiens balsamina-derived anti-bacterial peptide and an anti-bacterial composition comprising same. Specifically, six types of peptide derivatives were prepared on the basis of the sequence of a conventional Impatiens balsamina-derived peptide Ib-AMP4 known to have anti-fungal activity, and a peptide derivative exhibiting anti-bacterial and anti fungal activity better than that of Ib-AMP4 and having weak cytotoxicity and hemolytic properties has been identified, and thus the peptide derivative, which is an Impatiens balsamina-derived anti-bacterial peptide, can be used, in the fields of medicine, cosmetics and food, as an anti-bacterial or anti-fungal pharmaceutical composition, antibiotic, food preservative, cosmetic preservative, pharmaceutical preservative or feed additive preservative, and the like.
    Type: Application
    Filed: October 15, 2021
    Publication date: November 7, 2024
    Applicant: V&CO CO., LTD.
    Inventors: Sang Do CHA, Min Seok CHO, Won Seok CHOI, Jang Hee CHO, Ji Won YU
  • Patent number: 11111579
    Abstract: A deposition equipment is provided. The deposition equipment includes: a reaction chamber including an upper plate and a container body, the upper plate including a gas supplier for injecting a processing gas; a wafer chuck including an upper surface on which a wafer is loaded, in the reaction chamber, with the upper surface of the wafer chuck facing the upper plate; and a processing gas shielding section which prevents the processing gas from being adsorbed to the upper surface of the wafer chuck and is disposed between the upper plate and the wafer chuck in a state in which the wafer is removed from the wafer chuck. The processing gas shielding section includes a shutter which is plate-like, and the shutter includes a region including a gas discharge section for jetting a purging gas toward the wafer chuck.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: September 7, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sun Yong Hwang, Hyun Su Kim, Eun-Ok Lee, Taek Jung Kim, Hyo Jung Noh, Ji Won Yu
  • Publication number: 20210101237
    Abstract: A tool changing system of a machining center for machining a workpiece of a vehicle includes a machining unit including a jig portion for loading the workpiece and a tool loading device for loading a tool for machining the workpiece, a first magazine for storing a plurality of first tools, a second magazine for storing a plurality of second tools, and a controller configured to manage changing of the first tool between the machining unit and the first magazine and changing of the second tool between the machining unit.
    Type: Application
    Filed: March 31, 2020
    Publication date: April 8, 2021
    Inventors: Moo Hyun Kim, Jekwang Cho, Ji Won Yu
  • Patent number: 10886555
    Abstract: An apparatus for activating a membrane electrode assembly (MEA) for fuel cells includes: a frame. A plurality of separation plates are disposed on an upper side of a base plate, which is disposed on a top portion of the frame, to move straightly in a length direction. The plurality of separation plates are spaced apart from each other with the MEA interposed therebetween in the direction in which the separation plates move. A tilt unit, which is connected to the frame and the base plate, upwardly tilt the base plate with respect to the frame and remove a coolant generated when the MEA is activated.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: January 5, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Nam Doo Lee, Ji Won Yu
  • Publication number: 20190345606
    Abstract: A deposition equipment is provided. The deposition equipment includes: a reaction chamber including an upper plate and a container body, the upper plate including a gas supplier for injecting a processing gas; a wafer chuck including an upper surface on which a wafer is loaded, in the reaction chamber, with the upper surface of the wafer chuck facing the upper plate; and a processing gas shielding section which prevents the processing gas from being adsorbed to the upper surface of the wafer chuck and is disposed between the upper plate and the wafer chuck in a state in which the wafer is removed from the wafer chuck. The processing gas shielding section includes a shutter which is plate-like, and the shutter includes a region including a gas discharge section for jetting a purging gas toward the wafer chuck.
    Type: Application
    Filed: April 17, 2019
    Publication date: November 14, 2019
    Inventors: Sun Yong Hwang, Hyun Su Kim, Eun-Ok Lee, Taek Jung Kim, Hyo Jung Noh, Ji Won Yu
  • Publication number: 20180301732
    Abstract: An apparatus for activating a membrane electrode assembly (MEA) for fuel cells includes: a frame. A plurality of separation plates are disposed on an upper side of a base plate, which is disposed on a top portion of the frame, to move straightly in a length direction. The plurality of separation plates are spaced apart from each other with the MEA interposed therebetween in the direction in which the separation plates move. A tilt unit, which is connected to the frame and the base plate, upwardly tilt the base plate with respect to the frame and remove a coolant generated when the MEA is activated.
    Type: Application
    Filed: June 20, 2018
    Publication date: October 18, 2018
    Inventors: Nam Doo LEE, Ji Won YU
  • Patent number: 10026985
    Abstract: An apparatus for activating a membrane electrode assembly (MEA) for fuel cells includes: a frame. A plurality of separation plates are disposed on an upper side of a base plate, which is disposed on a top portion of the frame, to move straightly in a length direction. The plurality of separation plates are spaced apart from each other with the MEA interposed therebetween in the direction in which the separation plates move. A tilt unit, which is connected to the frame and the base plate, upwardly tilt the base plate with respect to the frame and remove a coolant generated when the MEA is activated.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 17, 2018
    Assignee: Hyundai Motor Company
    Inventors: Nam Doo Lee, Ji Won Yu
  • Publication number: 20160322664
    Abstract: An apparatus and method are provided for fastening a fuel cell stack capable of significantly enhancing assembly characteristics and productivity of a stack by preventing insulating plates, when assembled, from being interfered or hampered by other components, while maintaining the stack pressed with appropriate pressure applied thereto. The apparatus includes a loading jig into which a stack is loaded and a press block that is configured to press the stack. Additionally, a pressing maintaining unit is configured to maintain the stack in a pressed state by the press block.
    Type: Application
    Filed: November 18, 2015
    Publication date: November 3, 2016
    Inventors: Joo Ok Park, Ji Won Yu
  • Publication number: 20160111745
    Abstract: An apparatus for activating a membrane electrode assembly (MEA) for fuel cells includes: a frame. A plurality of separation plates are disposed on an upper side of a base plate, which is disposed on a top portion of the frame, to move straightly in a length direction. The plurality of separation plates are spaced apart from each other with the MEA interposed therebetween in the direction in which the separation plates move. A tilt unit, which is connected to the frame and the base plate, upwardly tilt the base plate with respect to the frame and remove a coolant generated when the MEA is activated.
    Type: Application
    Filed: September 29, 2015
    Publication date: April 21, 2016
    Inventors: Nam Doo LEE, Ji Won YU
  • Patent number: 7096352
    Abstract: A security protocol structure for a Wireless Application Protocol (WAP) standard structure is disclosed. The security protocol structure provides a data security function in an application layer by providing a secret session having a secured session layer security (SSLS) protocol for providing a secret session interface to an application program between the session layer and the application layer.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: August 22, 2006
    Assignee: LG Electronics Inc.
    Inventors: Kyoung Jin Kang, Ji Won Yu, Jae Hwon Kwon
  • Publication number: 20010016907
    Abstract: A security protocol structure for a Wireless Application Protocol (WAP) standard structure is disclosed. The security protocol structure provides a data security function in an application layer by providing a secret session having a secured session layer security (SSLS) protocol for providing a secret session interface to an application program between the session layer and the application layer.
    Type: Application
    Filed: January 2, 2001
    Publication date: August 23, 2001
    Applicant: LG Electronics, Inc.
    Inventors: Kyoung Jin Kang, Ji Won Yu, Jae Hwon Kwon