Patents by Inventor Jee-Hoon Choi

Jee-Hoon Choi 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: 20240159713
    Abstract: An apparatus and method are disclosed for detecting a bonding defect occurring during an ultrasonic wire bonding process between a battery cell and a busbar connected to each other by ultrasonic wire bonding. A bonding parameter collector, coupled to an ultrasonic wire bonding machine, may collect ultrasonic bonding parameters continuously during the ultrasonic wire bonding process, machine learning training may be performed by a convolutional neural network, and a bonding defect may be detected based thereon.
    Type: Application
    Filed: August 24, 2022
    Publication date: May 16, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventor: Jee Hoon CHOI
  • Patent number: 8739405
    Abstract: An evaporator for a looped heat pipe (LHP) system, in which a working fluid circulates to cool heat generating electronic components that generate heat during operation, the evaporator including: a body comprising an inlet through which the working fluid enters and an outlet through which the working fluid is discharged; a sintered wick that is included in the body, wherein the sintered wick is formed by sintering a metal powder, and a plurality of pores are formed in the sintered wick; and an additional layer that is formed on a vaporization surface of the sintered wick where evaporation of the working fluid occurs, wherein a plurality of through holes are formed in the additional layer such that the working fluid changed into a vapor state passes through the additional layer after passing the sintered wick.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: June 3, 2014
    Assignee: Zalman Tech Co., Ltd.
    Inventors: Jee Hoon Choi, Jung Hyun Yoo, Byung Ho Sung, Yun Keun Lee, Min Whan Seo
  • Publication number: 20140144609
    Abstract: An evaporator for a looped heat pipe (LHP) system, in which a working fluid circulates to cool a heat generating electronic component that generates heat during operation, the evaporator including: a body including an inlet through which the working fluid enters and an outlet through which the working fluid is discharged; a sintered wick that is included in the body, wherein the sintered wick is formed by sintering a copper powder, and a plurality of pores are formed in the sintered wick; and an additional layer that is formed on a surface of the sintered wick, wherein the additional layer is formed by sintering copper particles having a size smaller than that of the copper powder forming the sintered wick, and the working fluid moved from the sintered wick is changed in a vapor state to be discharged.
    Type: Application
    Filed: February 15, 2013
    Publication date: May 29, 2014
    Applicant: ZALMAN TECH CO., LTD.
    Inventors: Jee Hoon CHOI, Yun Keun LEE, Min Whan SEO, Min Seok HA
  • Publication number: 20130112375
    Abstract: An evaporator for a looped heat pipe (LHP) system, in which a working fluid circulates to cool heat generating electronic components that generate heat during operation, the evaporator including: a body comprising an inlet through which the working fluid enters and an outlet through which the working fluid is discharged; a sintered wick that is included in the body, wherein the sintered wick is formed by sintering a metal powder, and a plurality of pores are formed in the sintered wick; and an additional layer that is formed on a vaporization surface of the sintered wick where evaporation of the working fluid occurs, wherein a plurality of through holes are formed in the additional layer such that the working fluid changed into a vapor state passes through the additional layer after passing the sintered wick.
    Type: Application
    Filed: November 23, 2011
    Publication date: May 9, 2013
    Applicant: ZALMAN TECH CO., LTD.
    Inventors: Jee Hoon CHOI, Jung Hyun YOO, Byung Ho SUNG, Yun Keun LEE, Min Whan SEO
  • Patent number: 8033017
    Abstract: Provided is a method of manufacturing an evaporator for a loop heat pipe system including a condenser, a vapor transport line, and a liquid transport line, and more particularly, to a method of manufacturing an evaporator for a loop heat pipe system which provides a simple manufacturing process capable of improving a contact state between a sintered wick and a heating plate.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: October 11, 2011
    Assignees: Zalman Tech Co., Ltd., Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Chul-Ju Kim, Min-Whan Seo, Byung-Ho Sung, Jung-Hyun Yoo, Jee-Hoon Choi, Jae-Hyung Ki
  • Publication number: 20110073284
    Abstract: An evaporator for a loop heat pipe (LHP) system. The evaporator an evaporator body for accommodating a sintered wick formed by sintering metal powders, a discharging hole for discharging a working fluid filled into voids formed between particles of the sintered wick and changed into a vapor due to being heated, and an inlet hole for introducing the working fluid changed into a liquid; a first chamber portion coupled to a side of the inlet hole, and including an inlet for introducing the working fluid in a liquid phase, and an accommodation space portion for accommodating the working fluid in a liquid phase; and a capillary structure that is porous and that is inserted into the accommodating space portion, wherein the working fluid in a liquid phase introduced through the inlet is introduced to the evaporator body through the capillary structure.
    Type: Application
    Filed: September 23, 2010
    Publication date: March 31, 2011
    Inventors: Jung Hyun YOO, Jee Hoon CHOI, Min Whan SEO
  • Publication number: 20100071880
    Abstract: An evaporator for a looped heat pipe (LHP) system, the evaporator including a plurality of wicks having pores formed therein; a plurality of heat transferring fins respectively having a wick coupler to be coupled to one of the plurality of wicks; a plurality of unit assemblies formed by respectively coupling each of the wicks and each of the heat transferring fins; an assembly structure formed by horizontally disposing the unit assemblies to enable a bottom surface of each of the unit assemblies to be located on a planar surface; a heat transferring plate coupled to a bottom part of the assembly structure; and a covering member coupled to the heat transferring plate.
    Type: Application
    Filed: October 9, 2009
    Publication date: March 25, 2010
    Inventors: Chul-Ju Kim, Min-Whan Seo, Byung-Ho Sung, Jung-Hyun Yoo, Jee-Hoon Choi, Jung Rae Jo
  • Publication number: 20090313828
    Abstract: Provided is a method of manufacturing an evaporator for a loop heat pipe system including a condenser, a vapor transport line, and a liquid transport line, and more particularly, to a method of manufacturing an evaporator for a loop heat pipe system which provides a simple manufacturing process capable of improving a contact state between a sintered wick and a heating plate.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 24, 2009
    Inventors: Chul-Ju Kim, Min-Whan Seo, Byung-Ho Sung, Jung-Hyun Yoo, Jee-Hoon Choi, Jae-Hyung Ki
  • Publication number: 20090314472
    Abstract: Provided is an evaporator for a loop heat pipe system including a condenser, a vapor transport line, and a liquid transport line, and more particularly, to an evaporator having an increased contact area between a sintered wick and a heating plate.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 24, 2009
    Inventors: Chul Ju Kim, Min-Whan Seo, Byung-Ho Sung, Jung-Hyun Yoo, Jee-Hoon Choi, Jae-Hyung Ki