Patents by Inventor Seok-Soon Lee

Seok-Soon 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).

  • Patent number: 12237770
    Abstract: A 3-level buck-boost converter includes: an inductor connected in series between a switching node and a ground terminal; an output capacitor connected between an output terminal from which an output voltage is output and a ground terminal; a first switch connected between an input terminal to which an input voltage is input and a top plate node; a second switch connected between the top plate node and the switching node; a third switch connected between the switching node and a bottom plate node; a fourth switch connected between the bottom plate node and the output terminal; a flying capacitor connected between the top plate node and the bottom plate node; balancing switches connected between the switching node and the balancing node; a top balancing capacitor connected between the input terminal and the balancing node; and a bottom balancing capacitor connected between the balancing node and the output terminal.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: February 25, 2025
    Assignee: SILICON MITUS, INC.
    Inventors: Jae Soon Choi, Hak Hee Lee, Seok Mun Choi
  • Patent number: 12219821
    Abstract: A display device includes a substrate, a thin film transistor on the substrate, an interlayer insulating layer on the thin film transistor, an electrode on the interlayer insulating layer, the electrode including an emission region, a contact region overlapping the thin film transistor, and a dummy region protruding from the emission region in a direction different from the contact region, and an emission layer on the electrode, the emission region of the electrode overlapping the emission layer.
    Type: Grant
    Filed: June 21, 2023
    Date of Patent: February 4, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun-Kyu Joo, In Seok Song, Keun Chan Oh, Byung-Chul Kim, In Ok Kim, Gak Seok Lee, Chang-Soon Jang
  • Patent number: 11883634
    Abstract: An electrohydraulic microjet drug delivery device includes: a discharge body provided with a power supply unit in which electric energy is stored; and a medicinal fluid delivery body detachably attached to the discharge body, the medicinal fluid delivery body including a pressure generation unit configured to store a pressure generation liquid, a medicinal fluid storage unit configured to store a medicinal fluid, an elastic separation membrane installed between the pressure generation unit and the medicinal fluid storage unit and configured to separate the pressure generation liquid and the medicinal fluid, a discharger installed inside the pressure generation unit so as to be submerged in the pressure generation liquid and configured to generate a spark using the electric energy stored in the power supply unit, and a nozzle kept in communication with the medicinal fluid storage unit.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: January 30, 2024
    Assignee: MEDIJET CO., LTD.
    Inventors: Seok Soon Lee, Jin Kyu Choi, Han Bin Kang, Seung Min Tak, In Seok Baek
  • Publication number: 20210023304
    Abstract: An electrohydraulic microjet drug delivery device includes: a discharge body provided with a power supply unit in which electric energy is stored; and a medicinal fluid delivery body detachably attached to the discharge body, the medicinal fluid delivery body including a pressure generation unit configured to store a pressure generation liquid, a medicinal fluid storage unit configured to store a medicinal fluid, an elastic separation membrane installed between the pressure generation unit and the medicinal fluid storage unit and configured to separate the pressure generation liquid and the medicinal fluid, a discharger installed inside the pressure generation unit so as to be submerged in the pressure generation liquid and configured to generate a spark using the electric energy stored in the power supply unit, and a nozzle kept in communication with the medicinal fluid storage unit, wherein when the spark is generated in the discharger, a part of the pressure generation liquid is vaporized and expanded to d
    Type: Application
    Filed: April 4, 2019
    Publication date: January 28, 2021
    Inventors: Seok Soon LEE, Jin Kyu CHOI, Han Bin KANG, Seung Min TAK, In Seok BAEK
  • Patent number: 8695523
    Abstract: Provided is an apparatus for reducing the pitching and rolling motion of a vessel, the apparatus including a plurality of buoyancy members spaced apart from each other and vertically slidably mounted on a vessel, a plurality of hydraulic cylinders that are connected to the upper end portions of the respective buoyancy members and receive the locomotive power of the buoyancy members that rise from waves, and a hydraulic connection line provided in such a manner that the hydraulic pressures of the hydraulic cylinders are interconnected, so that the hydraulic pressures, which are generated from the rise of the hydraulic cylinders due to the rise of the buoyancy members located at the peaks of the waves, can be supplied to the hydraulic cylinders located at the troughs of the waves to cause the buoyancy members to fall, thereby increasing the buoyancy of the vessel and restraining the pitching and rolling thereof.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: April 15, 2014
    Assignee: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventor: Seok-Soon Lee
  • Patent number: 8667918
    Abstract: Provided is an apparatus for reducing the pitching and rolling motion of a vessel, the apparatus including a plurality of buoyancy members spaced apart from each other and vertically slidably mounted on a vessel, a plurality of hydraulic cylinders that are connected to the upper end portions of the respective buoyancy members and receive the locomotive power of the buoyancy members that rise from waves, and a hydraulic connection line provided in such a manner that the hydraulic pressures of the hydraulic cylinders are interconnected, so that the hydraulic pressures, which are generated from the rise of the hydraulic cylinders due to the rise of the buoyancy members located at the peaks of the waves, can be supplied to the hydraulic cylinders located at the troughs of the waves to cause the buoyancy members to fall, thereby increasing the buoyancy of the vessel and restraining the pitching and rolling thereof.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: March 11, 2014
    Assignee: Industry-Academic Cooperation Foundation Gyeongsang National University
    Inventor: Seok-Soon Lee
  • Publication number: 20120137946
    Abstract: Provided is an apparatus for reducing the pitching and rolling motion of a vessel, the apparatus including a plurality of buoyancy members spaced apart from each other and vertically slidably mounted on a vessel, a plurality of hydraulic cylinders that are connected to the upper end portions of the respective buoyancy members and receive the locomotive power of the buoyancy members that rise from waves, and a hydraulic connection line provided in such a manner that the hydraulic pressures of the hydraulic cylinders are interconnected, so that the hydraulic pressures, which are generated from the rise of the hydraulic cylinders due to the rise of the buoyancy members located at the peaks of the waves, can be supplied to the hydraulic cylinders located at the troughs of the waves to cause the buoyancy members to fall, thereby increasing the buoyancy of the vessel and restraining the pitching and rolling thereof.
    Type: Application
    Filed: March 14, 2011
    Publication date: June 7, 2012
    Inventor: Seok-Soon Lee