Patents by Inventor Han-Jung Kwon

Han-Jung Kwon 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: 20240069535
    Abstract: The present disclosure relates to a simulation apparatus for secondary battery production.
    Type: Application
    Filed: July 14, 2022
    Publication date: February 29, 2024
    Inventors: Shinkyu KANG, Min Yong KIM, Youngduk KIM, Nam Hyuck KIM, Su Ho JEON, Min Hee KWON, Sung Nam CHO, Hyeong Geun CHAE, Gyeong Yun JO, Moon Kyu JO, Kyungchul HWANG, Moo Hyun YOO, Han Seung KIM, Daewoon JUNG, Seungtae KIM, Junhyeok JEON
  • Patent number: 9238854
    Abstract: Disclosed is a method of producing carbide and carbon nitride powders containing a binder, and cermet obtained from the same. The method includes preparing Ti—Ni alloy powders for Ti alloy powders and graphite, planetary-pulverizing the Ti—Ni alloy powders and the graphite, mortar-pulverizing the alloy powders and the graphite which are subject to the planetary-pulverizing, and performing heat treatment for the Ti—Ni alloy powders and the graphite that are pulverized. Cermet, which is made of the composite powders of carbide and carbon nitride/metal including both TiC which is ceramic material and Ni which is metal is provided.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 19, 2016
    Assignee: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
    Inventors: Han-Jung Kwon, Sun-A Jung, Sung-Wook Cho, Dae-Sup Kil, Ji-Woong Kim, Ki-Min Roh, Jae-Won Lim
  • Publication number: 20140207387
    Abstract: A method of analyzing a numeric model for a metal hydride tank, which calculates the temperature change and the change of a reaction rate and the hydrogen concentration in the alloy resulting from a hydrogen reaction based on various user conditions with respect to metal hydride (MH) alloy tanks having various shapes when MH alloy tanks are actually used. The method includes (a) inputting a temperature (T), a real reaction flow rate (QR), and an initial data value of hydrogen concentration (C) for each cell of a model, (b) calculating a possible reaction rate (RP) depending on the temperature (T) and the hydrogen concentration (C) in the metal hydride alloy with respect to each cell, (c) calculating a possible flow rate (QP) with respect to an entire MH alloy region, and (d) calculating a k between the real reaction flow rate (QR) and the possible reaction flow rate (QP).
    Type: Application
    Filed: November 8, 2013
    Publication date: July 24, 2014
    Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
    Inventors: Sung-Wook CHO, Han-Jung KWON, Jeong-Hyun YOO, Ji-Woong KIM, Kyung-Woo YI, Sang-Kun O
  • Publication number: 20140114626
    Abstract: Disclosed is a method of calculating a numeric model for interpretation of a metal hydride tank. The best possible simpljfied algorithm is applied through a simple measuring process, thereby calculating a numeric model for various metal hydride tank systems storing hydrogen, so that temperature variation depending on the reaction with hydrogen and the reacted. quantity of the hydrogen. are calculated with respect to the various metal hydride tank systems by calculating only the numeric model. The method. includes (a) charging a metal hydride (MH) alloy in a metal hydride tank system under a preset temperature condition, (b) measuring temperature variation and a reaction rate between MH alloy and hydrogen, and concentration of the hydrogen of the MH alloy by supplying or emitting the hydrogen, and (c) calculating a numeric model for the temperature variation, the reaction rate, and the concentration of the hydrogen based on data measured through step (b).
    Type: Application
    Filed: May 22, 2013
    Publication date: April 24, 2014
    Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
    Inventors: Sung-Wook CHO, Han-Jung KWON, Jeong-Hyun YOO, Ji-Woong KIM, Kyung-Woo YI, Sang-Kun O
  • Patent number: 8303681
    Abstract: A mixed powder and a sintered body obtained by sintering the mixed powder. The mixed powder includes a solid-solution powder with complete solid-solution phase. The solid-solution powder includes a carbide or a carbonitride of at least two metals selected, including Ti, from metals of Groups IVa, Va and VIa of the periodic table, or a mixture thereof. A mixed cermet powder and a cermet obtained by sintering the mixed cermet powder are also disclosed. The mixed cermet powder includes at least a cermet powder with complete solid-solution phase. The cermet powder includes a carbide or a carbonitride of at least two metals selected, including Ti, from metals of Groups IVa, Va and VIa of the periodic table, or a mixture thereof, and at least one metal selected from the group consisting of Ni, Co and Fe. Also disclosed are a sintered body and a fabrication method of a cermet.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: November 6, 2012
    Assignee: Seoul National University Industry Foundation
    Inventors: Shin-Hoo Kang, Jin-Kwan Jung, Han-Jung Kwon
  • Publication number: 20100184582
    Abstract: A mixed powder and a sintered body obtained by sintering the mixed powder. The mixed powder includes a solid-solution powder with complete solid-solution phase. The solid-solution powder includes a carbide or a carbonitride of at least two metals selected, including Ti, from metals of Groups IVa, Va and VIa of the periodic table, or a mixture thereof. A mixed cermet powder and a cermet obtained by sintering the mixed cermet powder are also disclosed. The mixed cermet powder includes at least a cermet powder with complete solid-solution phase. The cermet powder includes a carbide or a carbonitride of at least two metals selected, including Ti, from metals of Groups IVa, Va and VIa of the periodic table, or a mixture thereof, and at least one metal selected from the group consisting of Ni, Co and Fe. Also disclosed are a sintered body and a fabrication method of a cermet.
    Type: Application
    Filed: August 8, 2007
    Publication date: July 22, 2010
    Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Shin-Hoo Kang, Jin-Kwan Jung, Han-Jung Kwon