Patents by Inventor Moo Hwan Kim

Moo Hwan Kim 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: 20210225620
    Abstract: Disclosed is a plasma device which includes: a base including a power supply unit configured to receive electric power and form an AC signal, a gas flow rate adjustment unit configured to receive gas and control a flow rate of output gas, an input unit configured to receive an input of a user, and a controller configured to control the power supply unit and the gas flow rate adjustment unit according to the input; and a handpiece including a boosting transformer configured to boost the AC signal, an electrode structure configured to receive the boosted AC signal and the gas and form plasma, a switch configured to receive a plasma discharge signal of the user, and a nozzle configured to discharge the formed plasma, wherein the handpiece is connected to the base via a connector and is exchangeable.
    Type: Application
    Filed: November 24, 2020
    Publication date: July 22, 2021
    Applicant: FEMTO SCIENCE INC
    Inventors: Moo Hwan KIM, Yeon Sook CHANG
  • Publication number: 20200083023
    Abstract: The present disclosure relates to a portable plasma device which is convenient to carry and has excellent performance and is capable of simply, uniformly, and locally treating an inner surface of a microstructure such as a microwell plate by easily adjusting a plasma flame.
    Type: Application
    Filed: August 15, 2019
    Publication date: March 12, 2020
    Inventors: MOO HWAN KIM, YEON SOOK CHANG
  • Patent number: 9434620
    Abstract: The present invention relates to a foam-shaped graphene structure and, more particularly, to a method for producing a foam-shaped graphene structure by boiling, and to a foam-shaped graphene structure using same. Provided is a method for producing a foam-shaped graphene structure by boiling, which includes the steps of: preparing a base substrate (S1); placing the base substrate in a reduced graphene oxide (RGO) colloid solution (S2); applying a heat flux to the base substrate using an exothermic body so as to cause boiling (S3); and generating the foam-shaped graphene structure on the base substrate as bubbles generated by the boiling become overlapped (S4).
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: September 6, 2016
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Moo Hwan Kim, Ho Seon Ahn, Ji Wook Jang, Jae Sung Lee
  • Patent number: 9346031
    Abstract: A sodium-nanoliquid reactivity experiment apparatus includes: a storage tank that stores liquid sodium; a mixing tank that is connected to the storage tank through a first transport line to receive supply of the liquid sodium and that injects nanoparticles to mix the nanoparticles with the liquid sodium; and a reactor that is connected to the mixing tank through a second transport line to receive supply of a sodium-nanoparticle mixture and that injects water to react the water with the sodium-nanoparticle mixture.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: May 24, 2016
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Moo Hwan Kim, Ho Seon Ahn, Gunyeop Park, Soojae Kim
  • Publication number: 20150251912
    Abstract: The present invention relates to a foam-shaped graphene structure and, more particularly, to a method for producing a foam-shaped graphene structure by boiling, and to a foam-shaped graphene structure using same. Provided is a method for producing a foam-shaped graphene structure by boiling, which includes the steps of: preparing a base substrate (S1); placing the base substrate in a reduced graphene oxide (RGO) colloid solution (S2); applying a heat flux to the base substrate using an exothermic body so as to cause boiling (S3); and generating the foam-shaped graphene structure on the base substrate as bubbles generated by the boiling become overlapped (S4).
    Type: Application
    Filed: May 10, 2013
    Publication date: September 10, 2015
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Moo Hwan Kim, Ho Seon Ahn, Ji Wook Jang, Jae Sung Lee
  • Publication number: 20150151270
    Abstract: A sodium-nanoliquid reactivity experiment apparatus includes: a storage tank that stores liquid sodium; a mixing tank that is connected to the storage tank through a first transport line to receive supply of the liquid sodium and that injects nanoparticles to mix the nanoparticles with the liquid sodium; and a reactor that is connected to the mixing tank through a second transport line to receive supply of a sodium-nanoparticle mixture and that injects water to react the water with the sodium-nanoparticle mixture.
    Type: Application
    Filed: March 6, 2012
    Publication date: June 4, 2015
    Inventors: Moo Hwan Kim, Ho Seon Ahn, Gunyeop Park, Soojae Kim
  • Publication number: 20150068910
    Abstract: Provided is an apparatus for anodizing an internal surface of a tube including an electrolyte container storing an electrolyte solution, a first solution conduit connected with the electrolyte container to receive the electrolyte solution, a first jig configured to fix one end of a targeted tube to a downstream end of the first solution conduit, a second solution conduit in which the other end of the targeted tube is connected to an upstream end to discharge the electrolyte solution flowing into the targeted tube, a second jig configured to fix the other end of the targeted tube to an upstream end of the second solution conduit, and a cathode rod inserted from the second jig and extended to the first jig through the inner portion of the targeted tube, in which, while the electrolyte solution passes through the inner portion of the targeted tube, a cathode is applied to the cathode rod and an anode is applied to the targeted tube to perform an anodizing process.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 12, 2015
    Inventors: Joonwon Kim, Moo Hwan Kim, Kyong Bo Eom, Kanghoon Kim, Ho Seon Ahn, Chan Lee
  • Publication number: 20120045030
    Abstract: A method for forming roughness on an outer surface of cladding of a fuel nuclear rod including zirconium includes: positioning the cladding of the nuclear fuel rod at a first electrode and connecting a positive electrode thereto, and positioning a conductive plate at a second electrode and connecting a negative electrode thereto; putting the cladding of the nuclear fuel rod in an electrolyte solution; and applying voltage to the positive electrode and the negative electrode to cause oxidation on the outer surface of the cladding of the nuclear fuel rod. In this case, the electrolyte solution is maintained at 10° C. or lower.
    Type: Application
    Filed: May 4, 2009
    Publication date: February 23, 2012
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Joon-Won Kim, Moo-Hwan Kim, Chan Lee, Hyung-Mo Kim
  • Publication number: 20090294113
    Abstract: Disclosed is a heat exchanger. The heat exchanger includes a plurality of plates superimposed on one another, and a plurality of heat transfer fins formed on the plurality of plates, and shaped into an airfoil, wherein a channel of a fluid between the superimposed plates is formed to perform a heat exchange.
    Type: Application
    Filed: April 17, 2009
    Publication date: December 3, 2009
    Applicants: KOREA ATOMIC ENERGY RESEARCH INSTITUTE, KOREA HYDRO & NUCLEAR POWER CO., LTD.
    Inventors: Jae-Eun Cha, Seong-O Kim, Dong-Eok Kim, Moo-Hwan Kim
  • Patent number: 7624588
    Abstract: The present invention relates to hybrid absorption chiller, which uses high-temperature steam and medium-temperature water generated in industrial processes as a heat source, the hybrid absorption chiller including a high temperature generator that uses the high-temperature steam as a heat source so that the heat exchange with refrigerant is carried out; a low temperature generator that uses the heat of condensation of the refrigerant steam, generated in the high temperature generator, as a heat source so that the heat exchange with refrigerant is once again carried out; a generator for medium temperature water that uses the medium-temperature water as a heat source so that the heat exchange with refrigerant is carried out; a hybrid condenser that simultaneously condenses the refrigerants which are respectively heat-exchanged in the high temperature generator, the low temperature generator, and the generator for medium temperature water; an evaporator that uses latent heat of vaporization of the refrigerant c
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: December 1, 2009
    Assignees: Postech Academy Industry Corp., Posco
    Inventors: Moo Hwan Kim, Jae Dal Lee
  • Patent number: 7168851
    Abstract: An apparatus for measuring heat dissipation of a target heating element includes a reference heating element for emitting heat; a control unit; and a pair of temperature measuring devices for measuring representative temperatures of the target and the reference heating element and transmitting to the control unit signals indicating the representative temperatures. The reference heating element has an outer configuration and sizes substantially identical to those of the target heating element. The control unit controls the reference heating element such that the representative temperature of the reference heating element becomes substantially identical to that of the target heating element.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: January 30, 2007
    Assignee: Postech Foundation
    Inventors: Moo Hwan Kim, Jeong Seob Shin
  • Patent number: 6644389
    Abstract: A fin tube heat exchanger includes plate-shaped elongated fin members spaced at regular intervals, in parallel with one another. Each fin member has a fin base, through-holes in two rows in a longitudinal direction of the fin member, and raised portions with legs. Heat exchanger tubes are inserted into the through-holes. Each fin member has flat areas at a front and middle regions of a front half and a middle region of a rear half. The raised portion disposed at a rear region of the front half and a front region of the rear half has the legs inclined by a predetermined angle with respect to a traverse centerline which passes through the center of an adjacent through-hole of the front row. The distance from the centerline generally increases with a direction of airflow. A larger volume of air can be directed toward the vicinity of the tubes of the rear row. Each fin member has a front edge and a rear edge.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: November 11, 2003
    Assignee: Pohang University of Science and Technology Foundation
    Inventors: Hie-chan Kang, Moo-hwan Kim
  • Patent number: D935022
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 2, 2021
    Assignee: FEMTO SCIENCE INC
    Inventors: Moo Hwan Kim, Yeon Sook Chang