Patents by Inventor Min Hwan Ok

Min Hwan Ok 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: 20200241137
    Abstract: The present disclosure provides a hypertube system for detecting a position of a hypertube vehicle, including a hypertube vehicle, a tube configured to surround a travel path of the hypertube vehicle, At least one LiDAR sensor each mounted on an inner wall of the tube and including a laser transmitter configured to irradiate a laser beam toward the hypertube vehicle and a laser receiver configured to detect a laser, and a reflector configured to reflect the laser irradiated from the LiDAR sensor, wherein the reflector may be disposed in the hypertube vehicle, and wherein the laser beam reflected from the reflector reaches the laser receiver of the LiDAR sensor to be used in detecting the position of the hypertube vehicle.
    Type: Application
    Filed: December 10, 2018
    Publication date: July 30, 2020
    Applicant: Korea Railroad Research Institute
    Inventors: SuYong CHOI, Jae Heon CHOI, Jung Youl LIM, Chang Young LEE, Kwan Sup LEE, Yong Jun JANG, Jeong Min JO, Jin Ho LEE, Min Hwan OK, Jae Hoon KIM, Lee Hyeon 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
  • Patent number: 8935039
    Abstract: A method for reducing data of sensor devices in a vehicle includes collecting detection data periodically from the sensor devices and calculating an average value of the data collected during a cycle. The collected data may be compared with the calculated values and a deviation with previous data may be calculated by an upper and lower value difference method. A difference between the collected data and average values may also be calculated by a deviation method. The calculated value is stored. Data from a plurality of running vehicles may be periodically transmitted to a driving control center in order to monitor devices related to operations of all of the running vehicles in near real time.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: January 13, 2015
    Assignee: Korea Railroad Research Institute
    Inventors: Min Hwan Ok, Hyun Seung Jung
  • Publication number: 20130268157
    Abstract: A method for reducing data of sensor devices in a vehicle includes collecting detection data periodically from the sensor devices and calculating an average value of the data collected during a cycle. The collected data may be compared with the calculated values and a deviation with previous data may be calculated by an upper and lower value difference method. A difference between the collected data and average values may also be calculated by a deviation method. The calculated value is stored. Data from a plurality of running vehicles may be periodically transmitted to a driving control center in order to monitor devices related to operations of all of the running vehicles in near real time.
    Type: Application
    Filed: July 13, 2011
    Publication date: October 10, 2013
    Applicant: KOREA RAILROAD RESEARCH INSTITUTE
    Inventors: Min Hwan Ok, Hyun Seung Jung