Patents by Inventor Hyeon Yoon

Hyeon Yoon 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: 11089176
    Abstract: An image forming device and method for supporting multiple platforms are provided. The image forming device includes a communication device, a processor, a memory, and a user interface device. The processor may request an app server for a list of apps usable by the image forming device, and receive the list from the app server. The processor may determine a first app to be controlled in the list. The processor may obtain information of the second app that provides a same or similar service as a service provided by the first app based on information of the first app, and is supported by a second platform different from a first platform supporting the first app. The processor may perform an operation to control a state of the second app on the second platform based on an operation to control a state of the first app on the first platform.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: August 10, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Jung Hyeon Yoon
  • Publication number: 20210067655
    Abstract: An image forming device and method for supporting multiple platforms are provided. The image forming device includes a communication device, a processor, a memory, and a user interface device. The processor may request an app server for a list of apps usable by the image forming device, and receive the list from the app server. The processor may determine a first app to be controlled in the list. The processor may obtain information of the second app that provides a same or similar service as a service provided by the first app based on information of the first app, and is supported by a second platform different from a first platform supporting the first app. The processor may perform an operation to control a state of the second app on the second platform based on an operation to control a state of the first app on the first platform.
    Type: Application
    Filed: July 19, 2018
    Publication date: March 4, 2021
    Inventor: Jung Hyeon YOON
  • Patent number: 10811147
    Abstract: The present invention provides a passive residual heat removal system and an atomic power plant comprising the same, the passive heat removal system comprising: a plate-type heat exchanger for causing heat exchange between a primary system fluid or a secondary system fluid which, in order to remove sensible heat from an atomic reactor cooling material system and residual heat from a reactor core, has received the sensible heat and the residual heat, and a cooling fluid which has been introduced from outside of a containment unit; and circulation piping for connecting the atomic reactor cooling material system to the plate-type heat exchanger, thereby forming a circulation channel of the primary system fluid, or connecting a steam generator, which is arranged at the boundary between the primary and secondary systems, to the plate-type heat exchanger, thereby forming a circulation channel of the secondary system fluid.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: October 20, 2020
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Keung Koo Kim, Jae Joo Ha, Ju Hyeon Yoon, Young Min Bae, Soo Jai Shin, Hun Sik Han, Kyung Jun Kang, Tae Wan Kim
  • Patent number: 10811152
    Abstract: The present invention relates to a plate heat exchanger and provides a heat exchanger and a nuclear power plant comprising same, the heat exchanger comprising: a plate unit having multiple plates overlapping one another; a flow path unit, which forms flow paths having fluids flowing therein by processing at least parts of the respective plates; and a detection flow path formed between the multiple plates so as to allow the fluids leaking from the flow paths to flow thereinto and formed so as to detect the leakage of the fluids from the flow paths.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: October 20, 2020
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Keung Koo Kim, Ju Hyeon Yoon, Suhn Choi, Hun Sik Han, Han Ok Kang
  • Patent number: 10706974
    Abstract: The present invention discloses a passive cooling system of a containment building, to which a plate-type heat exchanger is applied. A passive cooling system of a containment building comprises: a containment building; a plate-type heat exchanger provided to at least one of the inside and the outside of the containment building and comprising channels respectively provided to the both sides of a plate so as to be arranged dividedly from each other such that the plate-type heat exchanger carries out mutual heat exchange between the internal atmosphere of the containment building and a heat exchange fluid while maintaining a pressure boundary; and a pipe connected to the plate-type heat exchanger by penetrating the containment building so as to form the path of the internal atmosphere of the containment building or the heat exchange fluid.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: July 7, 2020
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Cheon Tae Park, Seung Yeob Ryu, Young Min Bae, Joo Hyung Moon, Soo Jai Shin, Hun Sik Han, Kyung Jun Kang, Young Soo Kim, Tae Wan Kim, Ju Hyeon Yoon, Keung Koo Kim, Jae Joo Ha
  • Patent number: 10325688
    Abstract: The present invention relates to a passive heat removal system which circulates cooling fluid to a steam generator via a main water supply line connected to the lower inlet of the steam generator, and a main steam pipe connected to the top outlet of the steam generator, to remove sensible heat of a nuclear reactor coolant system and residual heat of a core. The heat removal system comprises supplementary equipment for receiving surplus cooling fluid or for supplying supplementary cooling fluid in order to maintain the flow rate of the cooling fluid within a predetermined range. The supplementary equipment comprises: a supplementary tank, installed at a height between the lower inlet and the top outlet of the steam generator; a first connection pipe, connected to the main steam pipe and the supplementary tank; and a second connection pipe, connected to the supplementary tank and the main water supply pipe.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: June 18, 2019
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Keung Koo Kim, Ju Hyeon Yoon, Jae Joo Ha, Tae Wan Kim, Cheon Tae Park, Seung Yeob Ryu, Han Ok Kang, Young Min Bae, Joo Hyung Moon, Hun Sik Han, Kyung Jun Kang, Soo Jai Shin, Seo Yoon Jung, Young Soo Kim
  • Patent number: 10319481
    Abstract: Provided is a passive containment spray system including: a spray coolant storage unit that communicates with a containment accommodating a reactor vessel and maintains equilibrium of pressure between the spray coolant storage unit and the containment; a spray pipe that is installed within the containment in such a manner that when an accident occurs, a coolant supplied from the spray coolant storage unit is sprayed into the containment through the spray pipe due to an increase in pressure within the containment; and a connection pipe one end of which is inserted into the spray coolant storage unit in such a manner as to provide a flow path along which the coolant flows and the other end of which is connected to the spray pipe in such a manner that the coolant is passively supplied to the spray pipe through the connection pipe therein.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: June 11, 2019
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Soo Jai Shin, Han Ok Kang, Keung Koo Kim, Ju Hyeon Yoon, Tae Wan Kim, Jae Joo Ha
  • Patent number: 10276270
    Abstract: The present invention discloses a nuclear reactor coolant pump that does not rely on an electric motor, but is operated by means of driving force generated inside a nuclear power plant, so a to be capable of maintaining the safety of the nuclear reactor when the nuclear reactor is operating normally and also in the event of an accident in the nuclear reactor. The nuclear reactor coolant pump comprises: a pump impeller rotatably installed in a first fluid passage of a nuclear reactor coolant system to circulate a first fluid inside the nuclear reactor coolant system; a drive unit receiving steam from a steam generator to generate driving force to rotate the pump impeller, and rotating about the same rotating shaft as the pump impeller to transfer the generated driving force to the pump impeller; and a steam supplying unit forming a passage between the steam generator and the drive unit to supply at least a portion of the steam released from the steam generator to the drive unit.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: April 30, 2019
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young Soo Kim, Young In Kim, Cheon Tae Park, Ju Hyeon Yoon, Tae Wan Kim, Keung Koo Kim, Jae Joo Ha
  • Patent number: 10229762
    Abstract: The present disclosure provides a cooling system of an emergency cooling tank, which enables long-term cooling without refilling cooling water, in case of the change in a quantity of heat transferred to the emergency cooling tank according to a lapse of time upon an occurrence of an accident of a nuclear reactor, and a nuclear power plant having the same. The emergency cooling tank cooling system includes an emergency cooling tank, a heat exchanging device installed to be exposed to an outside of the emergency cooling tank to operate in air, and configured to externally emit such that the operation of the emergency cooling tank is continued even without refilling the cooling water, and an opening and closing unit installed at an upper portion of the emergency cooling tank to be located higher than a water level of the cooling water.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: March 12, 2019
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Keung Koo Kim, Young Min Bae, Ju Hyeon Yoon, Jae Joo Ha, Won Jae Lee, Tae Wan Kim
  • Patent number: 10164470
    Abstract: A wireless power transmission/reception system includes a wireless power transmission circuit and a wireless power reception circuit. The wireless power transmission circuit includes an oscillator, a DC-AC converter that converts a direct current to an alternating current and is turned on/off in response to a control signal, a power transmission coil that transmits AC power, a signal reception coil, and a signal receiver that transfers the control signal to the DC-AC converter. The wireless power reception circuit includes a power reception coil, a rectifier that converts an alternating current to a direct current and is turned on or off in response to the control signal, an control signal generator that generates the control signal, a signal transmission coil, and a signal transmitter that transmits the control signal through the signal transmission coil.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: December 25, 2018
    Assignees: SK HYNIX INC., SOONGSIL UNIVERSITY FOUNDATION OF UNIVERSITY-INDUSTRY COOPERATION
    Inventors: Chang-Kun Park, Chang-Hyun Lee, Suk-Hyeon Yoon, Hyung-Jun Cho, Jun-Gi Choi, Jin-Ho Yoo
  • Patent number: 10115488
    Abstract: The present invention provides passive safety equipment, comprising: a cooling part formed to cool a first fluid, which is emitted from a reactor coolant system or a steam generator, and a second fluid in a housing; and a circulation induction sprayer which is formed to spray the first fluid emitted from the reactor coolant system or the steam generator into the cooling part, has at least part thereof open to the inside of the housing such that the second fluid flows thereinto according to a drop in pressure caused by the spraying of the first fluid, and sprays the second fluid with the inflown first fluid.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: October 30, 2018
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Hun Sik Han, Young In Kim, Kyung Jun Kang, Sung Jae Yi, Keung Koo Kim, Ju Hyeon Yoon, Jae Joo Ha, Suhn Choi, Cheon Tae Park, Seung Yeob Ryu, Joo Hyung Moon
  • Patent number: 10062462
    Abstract: The present invention provides a facility for reducing radioactive material comprising: a cooling water storage unit installed inside a containment and formed to store cooling water; a boundary unit forming a boundary of radioactive material inside the containment and surrounding a reactor coolant system installed inside the containment to prevent a radioactive material from releasing from the reactor coolant system or a pipe connected with the reactor coolant system to the containment; a connecting pipe connected with an inner space of the boundary unit and the cooling water storage unit to guide a flow of a fluid caused by a pressure difference between the boundary unit and the cooling water storage unit from the boundary unit to the cooling water storage unit; and a sparging unit disposed to be submerged in the cooling water stored in the cooling water storage unit and connected with the connecting pipe to sparge the fluid that has passed through the connecting pipe and the radioactive material contained i
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: August 28, 2018
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Kyung Jun Kang, Keung Koo Kim, Hun Sik Han, Ju Hyeon Yoon, Jae Joo Ha, Dae Hyun Hwang, Suhn Choi, Joo Hyung Moon, Soo Jai Shin
  • Patent number: 10025469
    Abstract: An apparatus is disclosed, including a first display and a second display and a controller operatively coupled to the first display and the second display, the controller configured to receive an input, identify a function associated with the input, present first information associated with a first function via the first display operatively coupled to the electronic device if the identified function is the first function, and present second information associated with a second function via the second display operatively coupled to the electronic device if the identified function is the second function.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: July 17, 2018
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Sang Hyeon Yoon
  • Patent number: 9905320
    Abstract: A separate type safety injection tank comprises: a coolant injection unit connected to a reactor coolant system by a safety injection pipe such that coolant stored therein is injected into the reactor coolant system by a pressure difference from the reactor coolant system when a loss-of-coolant-accident (LOCA) occurs; a gas injection unit connected to the coolant injection unit, and configured to pressurize the coolant injected into the reactor coolant system, by introducing gas stored therein to an upper part of the coolant injection unit in the loss-of-coolant-accident; and a choking device disposed between the coolant injection unit and the gas injection unit, and configured to contract a flow cross-sectional area of the gas introduced to the coolant injection unit, and configured to maintain a flow velocity and a flow rate of the gas introduced to the coolant injection unit as a critical flow velocity and a critical flow rate when a pressure difference between the coolant injection unit and the gas inject
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: February 27, 2018
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Young Min Bae, Ju Hyeon Yoon, Keung Koo Kim
  • Patent number: 9899671
    Abstract: Provided herein is a method for preparing a metal oxide nanoparticle/graphene composite using a supercritical fluid and the metal oxide nanoparticle/graphene composite prepared thereby, the method including preparing a dispersed solution by dispersing graphene oxide and a metal oxide precursor in an organic solvent and forming the metal oxide nanoparticle/graphene composite by reacting the dispersed solution under a supercritical condition, thereby uniformly dispersing the metal oxide nanoparticles on a graphene sheet.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: February 20, 2018
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Jaehoon Kim, Do Hyeon Yoon, Wenying Li, Ji Eun Hwang
  • Patent number: 9859027
    Abstract: The present disclosure may disclose a multi stage safety injection device, including a safety injection tank formed to contain coolant to be injected into a reactor vessel by a gravitational head of water when an accident occurs in which the pressure or water level of the reactor vessel is decreased, a pressure balance line connected to the reactor vessel and safety injection tank to form a pressure balance between the reactor vessel and the safety injection tank, and a set of safety injection lines connected to the safety injection tank and the reactor vessel to inject coolant to the reactor vessel in a pressure balance state between the reactor vessel and the safety injection tank, and connected to the safety injection tank with different heights to reduce a flow rate of coolant injected into the reactor vessel step by step according to the water level reduction of the safety injection tank in order to inject coolant to the reactor vessel at multi stages.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: January 2, 2018
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Won Jae Lee, Cheon Tae Park, Keung Koo Kim, Soo Jai Shin, Seung Yeop Yoo, Young Min Bae, Joo Hyung Moon, Ju Hyeon Yoon
  • Publication number: 20170309354
    Abstract: The present invention relates to a plate heat exchanger and provides a heat exchanger and a nuclear power plant comprising same, the heat exchanger comprising: a plate unit having multiple plates overlapping one another; a flow path unit, which forms flow paths having fluids flowing therein by processing at least parts of the respective plates; and a detection flow path formed between the multiple plates so as to allow the fluids leaking from the flow paths to flow thereinto and formed so as to detect the leakage of the fluids from the flow paths.
    Type: Application
    Filed: September 10, 2015
    Publication date: October 26, 2017
    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In KIM, Keung Koo KIM, Ju Hyeon YOON, Suhn CHOI, Hun Sik HAN, Han Ok KANG
  • Patent number: 9761334
    Abstract: The present disclosure may disclose a multi stage safety injection device and a passive safety injection system having the same, including a safety injection tank formed to contain coolant to be injected into a reactor vessel by a gravitational head of water when an accident occurs in which the pressure or water level of the reactor vessel is decreased, a pressure balance line connected to the reactor vessel and safety injection tank to form a pressure balance state between the reactor vessel and the safety injection tank, a safety injection line connected to a lower end portion of the safety injection tank and the reactor vessel to inject coolant to the reactor vessel in a pressure balance state between the reactor vessel and the safety injection tank, and a flow control line extended from the safety injection line to an inner portion of the safety injection tank, and provided with safety injection ports into which coolant is injected at predetermined heights, respectively, to reduce the flow rate of coolant
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: September 12, 2017
    Assignee: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In Kim, Keung Koo Kim, Cheon Tae Park, Seung Yeop Yoo, Young Min Bae, Joo Hyung Moon, Soo Jai Shin, Han Ok Kang, Jun Lee, Won Jae Lee, Tae Wan Kim, Keun Bae Park, Ju Hyeon Yoon
  • Publication number: 20170148533
    Abstract: The present invention relates to a passive heat removal system which circulates cooling fluid via a main water supply line, connected to the lower inlet of a steam generator, and a main steam pipe, connected to the top outlet of the steam generator, to the steam generator, in order to remove sensible heat of a reactor coolant system and residual heat of a core, the passive heat removal system comprising: supplementary equipment for receiving surplus cooling fluid or supplying supplementary cooling fluid in order to maintain the flow rate of the cooling fluid within a predetermined range, wherein the supplementary equipment comprises: a supplementary tank, installed at a predetermined height between the lower inlet and the top outlet of the steam generator, for receiving the surplus cooling fluid or supplying the supplementary cooling fluid, passively, depending on the flow rate of the cooling fluid; a first connection pipe, connected to the main steam pipe and the supplementary tank, for forming a flow path t
    Type: Application
    Filed: July 22, 2015
    Publication date: May 25, 2017
    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Young In KIM, Keung Koo KIM, Ju Hyeon YOON, Jae Joo HA, Tae Wan KIM, Cheon Tae PARK, Seung Yeob RYU, Han Ok KANG, Young Min BAE, Joo Hyung MOON, Hun Sik HAN, Kyung Jun KANG, Soo Jai SHIN, Seo Yoon JUNG, Young Soo KIM
  • Publication number: 20170047779
    Abstract: A wireless power transmission/reception system includes a wireless power transmission circuit and a wireless power reception circuit. The wireless power transmission circuit includes an oscillator, a DC-AC converter that converts a direct current to an alternating current and is turned on/off in response to a control signal, a power transmission coil that transmits AC power, a signal reception coil, and a signal receiver that transfers the control signal to the DC-AC converter. The wireless power reception circuit includes a power reception coil, a rectifier that converts an alternating current to a direct current and is turned on or off in response to the control signal, an control signal generator that generates the control signal, a signal transmission coil, and a signal transmitter that transmits the control signal through the signal transmission coil.
    Type: Application
    Filed: October 26, 2016
    Publication date: February 16, 2017
    Inventors: Chang-Kun PARK, Chang-Hyun LEE, Suk-Hyeon YOON, Hyung-Jun CHO, Jun-Gi CHOI, Jin-Ho YOO