Patents by Inventor Jae Heon Choe

Jae Heon Choe 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: 11787448
    Abstract: Provided is a hypertube transport system. Specifically, provided are a magnetically-levitated train and an infrastructure-system in which same travels, comprising: refrigerant for cooling compressed air of a hypertube train, and a compressed air cooling system utilizing the refrigerant; an apparatus and method for controlling trains operating in a vacuum tube; superconducting switches for superconducting magnets for magnetic levitation; a driving stability apparatus for the hypertube transport system; a control apparatus for trains of the hypertube transport system; and an energy harvester.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: October 17, 2023
    Assignee: KRRI
    Inventors: Kwan Sup Lee, Young Jun Jang, Jae Hoon Kim, Chang Young Lee, Lee Hyeon Kim, Min Hwan Ok, Jeong Min Jo, Jin Ho Lee, Jung Youl Lim, Jae Heon Choe, Su Yong Choi
  • Patent number: 11320070
    Abstract: A tube infrastructure includes a first tube; a second tube that is coupled to the first tube; and a fluid tank that is disposed to surround a coupling region of the first tube and the second tube and is filled with a fluid to seal the coupling region, wherein the fluid tank allows negative pressure to be maintained inside the first tube and the second tube.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: May 3, 2022
    Assignee: KOREA RAILROAD RESEARCH INSTITUTE
    Inventors: Jae Heon Choe, Kwan Sup Lee, Su Yong Choi, Chang Young Lee, Jung Youl Lim, Jin Ho Lee, Yong Jun Jang, Jeong Min Jo, Min Hwan Ok, Jae Hoon Kim
  • Publication number: 20200362995
    Abstract: A tube infrastructure includes a first tube; a second tube that is coupled to the first tube; and a fluid tank that is disposed to surround a coupling region of the first tube and the second tube and is filled with a fluid to seal the coupling region, wherein the fluid tank allows negative pressure to be maintained inside the first tube and the second tube.
    Type: Application
    Filed: July 19, 2018
    Publication date: November 19, 2020
    Inventors: Jae Heon CHOE, Kwan Sup LEE, Su Yong CHOI, Chang Young LEE, Jung Youl LIM, Jin Ho LEE, Yong Jun JANG, Jeong Min JO, Min Hwan OK, Jae Hoon KIM
  • Publication number: 20200239036
    Abstract: Provided is a hypertube transport system. Specifically, provided are a magnetically-levitated train and an infrastructure-system in which same travels, comprising: refrigerant for cooling compressed air of a hypertube train, and a compressed air cooling system utilizing the refrigerant; an apparatus and method for controlling trains operating in a vacuum tube; superconducting switches for superconducting magnets for magnetic levitation; a driving stability apparatus for the hypertube transport system; a control apparatus for trains of the hypertube transport system; and an energy harvester.
    Type: Application
    Filed: August 28, 2018
    Publication date: July 30, 2020
    Inventors: Kwan Sup LEE, Young Jun JANG, Jae Hoon KIM, Chang Young LEE, Lee Hyeon KIM, Min Hwan OK, Jeong Min JO, Jin Ho LEE, Jung Youl LIM, Jae Heon CHOE, Su Yong CHOI
  • Publication number: 20180131014
    Abstract: The present invention discloses a composite material separation plate for a fuel cell and a method for manufacturing the same. The disclosed composite material separation plate for a fuel cell according to the present invention is a composite material separation plate for a fuel cell including carbon materials covered with a polymer matrix, and is characterized in that the carbon materials are exposed to the surface of the composite material separation plate. Therefore, the present invention is advantageous in that the physical contact between a sacrificial layer, which is made of a soft material, and the separation plate exposes the carbon materials of the separation plate, thereby lowering the electric contact resistance of the separation plate.
    Type: Application
    Filed: September 1, 2015
    Publication date: May 10, 2018
    Inventors: Dai Gil Lee, Dong Young Lee, Jun Woo Lim, Jae Heon Choe, Min Kook Kim, Soo Hyun Nam