Patents by Inventor Sung Ryong LEE

Sung Ryong 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: 20210054742
    Abstract: A compressor vane is provided. The compressor vane may include a first surface directed toward air introduced into a compressor, a second surface directed in a direction opposite to the first surface, and two tangent lines in which the first and second surfaces meet, wherein a rate of change, with respect to a height of the compressor vane, of a maximum separation distance, between the first surface and the second surface, divided by a distance from one to the other of the two tangent lines in a cross-section at one position of the height of the compressor vane in a direction starting from a portion of the compressor vane closest to a center tie rod and toward a compressor housing varies with the height of the compressor vane away from the portion of the compressor vane closest to the center tie rod.
    Type: Application
    Filed: June 8, 2020
    Publication date: February 25, 2021
    Inventors: Young Jin JUNG, Jun Hyuk SEO, Sung Ryong LEE, Jae Woo CHOI
  • Patent number: 10908674
    Abstract: An electronic device includes a resistance element coupled between a supply terminal of a first voltage and an output terminal of an output signal, a driving element coupled between the output terminal of the output signal and a supply terminal of a second voltage, and suitable for operating based on a control signal, and a controller suitable for generating the control signal based on an input signal of the controller to the driving element. The controller drives an output terminal of the control signal with a first driving force during an initial period of a first transition period of the control signal, and drives the output terminal of the control signal with a second driving force different from the first driving force during the remaining period of the first transition period. The initial period is determined depending on a threshold voltage of the driving element.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: February 2, 2021
    Assignee: SK hynix Inc.
    Inventor: Sung-Ryong Lee
  • Patent number: 10673227
    Abstract: A system level electrostatic discharge (ESD) detection device includes a phase detection unit including at least one phase detector suitable for detecting a phase difference between a plurality of supply voltages or between a plurality of input signals; a storage unit suitable for shifting between a first and a second state, the second state indicating a phase difference detected by the phase detection unit; and an output unit suitable for outputting a system level electrostatic discharge (ESD) detection signal according to the first or second state of the storage unit.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: June 2, 2020
    Assignee: SK hynix Inc.
    Inventors: Sung-Ryong Lee, Kang-Bong Seo, Ik-Seok Yang
  • Publication number: 20200050254
    Abstract: An electronic device includes a resistance element coupled between a supply terminal of a first voltage and an output terminal of an output signal, a driving element coupled between the output terminal of the output signal and a supply terminal of a second voltage, and suitable for operating based on a control signal, and a controller suitable for generating the control signal based on an input signal of the controller to the driving element. The controller drives an output terminal of the control signal with a first driving force during an initial period of a first transition period of the control signal, and drives the output terminal of the control signal with a second driving force different from the first driving force during the remaining period of the first transition period. The initial period is determined depending on a threshold voltage of the driving element.
    Type: Application
    Filed: December 13, 2018
    Publication date: February 13, 2020
    Inventor: Sung-Ryong LEE
  • Patent number: 10178760
    Abstract: A flexible cable may include: a flexible substrate having a first surface and a second surface that are on opposite sides of the flexible substrate; a first conductive line formed on the first surface of the flexible substrate, and structured to transmit a signal having a first frequency; a second conductive line formed on the first surface of the flexible substrate, and structured to transmit a signal having a second frequency lower than the first frequency; and a ground line formed on the second surface of the flexible substrate, and comprising a first region overlapping the first conductive line and a second region overlapping the second conductive line. The first and second regions may have different shapes.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: January 8, 2019
    Assignee: SK hynix Inc.
    Inventors: Sung-Ryong Lee, Sung-Jin Lee
  • Publication number: 20180062378
    Abstract: A system level electrostatic discharge (ESD) detection device includes a phase detection unit including at least one phase detector suitable for detecting a phase difference between a plurality of supply voltages or between a plurality of input signals; a storage unit suitable for shifting between a first and a second state, the second state indicating a phase difference detected by the phase detection unit; and an output unit suitable for outputting a system level electrostatic discharge (ESD) detection signal according to the first or second state of the storage unit.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 1, 2018
    Inventors: Sung-Ryong LEE, Kang-Bong SEO, Ik-Seok YANG
  • Publication number: 20170366003
    Abstract: A semiconductor circuit protection device for protecting an input/output circuit include an ultra-low electrostatic discharging block suitable for discharging ultra-low electrostatic charges before migrating to the input/output circuit.
    Type: Application
    Filed: March 7, 2017
    Publication date: December 21, 2017
    Inventors: Sung-Ryong LEE, Ik-Seok YANG, Kang-Bong SEO
  • Patent number: 9670839
    Abstract: A gas turbine apparatus may include one or more driving shafts; a compressor configured to receive power from the one or more driving shafts, suck air, and compress the sucked air at high pressure. The gas turbine may include a combustor configured to mix the compressed air with fuel, and combust the fuel mixture to generate combustion gas. A turbine is connected to the one or more driving shafts and is configured to rotate while the combustion gas passes through the turbine. The turbine may include one or more first turbine blades configured to rotate in a first direction and one or more second turbine blades configured to rotate in a second direction opposite to the first direction. The one or more first turbine blades and the one or more second turbine blades may be alternately arranged along an axial direction of the turbine.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: June 6, 2017
    Assignee: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
    Inventors: Sung Ryong Lee, Jae Wook Song
  • Publication number: 20140290209
    Abstract: A gas turbine apparatus may include one or more driving shafts; a compressor configured to receive power from the one or more driving shafts, suck air, and compress the sucked air at high pressure. The gas turbine may include a combustor configured to mix the compressed air with fuel, and combust the fuel mixture to generate combustion gas. A turbine is connected to the one or more driving shafts and is configured to rotate while the combustion gas passes through the turbine. The turbine may include one or more first turbine blades configured to rotate in a first direction and one or more second turbine blades configured to rotate in a second direction opposite to the first direction. The one or more first turbine blades and the one or more second turbine blades may be alternately arranged along an axial direction of the turbine.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 2, 2014
    Applicant: DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD.
    Inventors: Sung Ryong LEE, Jae Wook SONG