Patents by Inventor Gunhee Jang

Gunhee Jang 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: 20200246087
    Abstract: A magnetic robot system is provided. The magnetic robot system comprises: a catheter having a first magnet coupling part provided at the front end thereof; and a mobile robot having a second magnet coupling part provided at the rear end thereof, and having a driving magnet, wherein the mobile robot is coupled to the catheter by means of magnetic force between the first magnet coupling part and the second magnet coupling part, and the magnetic force coupling of the first magnet coupling part and the second magnet coupling part can be released by rotating magnetic torque generated by the driving magnet because of the application of external rotating magnetic force.
    Type: Application
    Filed: April 3, 2018
    Publication date: August 6, 2020
    Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Gunhee JANG, Wonseo LEE, Jae Kwang NAM, Jongyul KIM
  • Publication number: 20200205793
    Abstract: A magnetic robot is provided. The magnetic robot comprises: a moving part which could be moved by means of a control of an external magnetic field; and an inspection part which is coupled to a frontal end of the moving part, wherein the inspection part comprises: a body provided with a tissue sampling needle at the frontal end thereof; a cover for covering the body; and a cover-moving part for moving the cover between a first position and a second position, wherein in the case where the cover is positioned in the first position, the tissue sampling needle is housed within the cover, and in the case where the cover is positioned in the second position, the tissue sampling needle is exposed to the outside of the cover.
    Type: Application
    Filed: April 3, 2018
    Publication date: July 2, 2020
    Applicant: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventors: Gunhee JANG, Eun Soo JUNG, Jae Kwang NAM
  • Publication number: 20200197202
    Abstract: The present invention relates to a stent delivery device having: a first support rod into which a first movable body is inserted; a fixed magnet; and a second support rod into which a second movable body is inserted, wherein a first driving magnet included in the first movable body and a second driving magnet included in the second movable body rotate relative to each other by means of the control of an external magnetic field at a predetermined angle around an axis in a first direction with respect to the fixed magnet, thereby separating a first coupling piece and a second coupling piece from a first coupling groove and a second coupling groove and enabling a stent to unfold.
    Type: Application
    Filed: June 18, 2018
    Publication date: June 25, 2020
    Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Gunhee JANG, Wonseo LEE, Jae Kwang NAM, Eun Soo JUNG
  • Publication number: 20190184545
    Abstract: A magnetic field control system according to an embodiment of the present invention may comprise: a structure forming part for forming a three-dimensional structure having an inner space; a magnetic field generating part for generating a magnetic field, the magnetic field generating part being formed to extend from a predetermined position of the structure forming part and being disposed to face a target region defined in the inner space; and a power source part for supplying electric power to the magnetic field generating part.
    Type: Application
    Filed: April 14, 2017
    Publication date: June 20, 2019
    Applicant: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)
    Inventors: Gunhee JANG, Jaekwang NAM, Wonseo LEE, Bongjun JANG
  • Patent number: 6628034
    Abstract: A brushless DC motor with armature windings is compensated by auxiliary windings wound around linking parts of each pair of adjacent teeth of the slotted stator, to increase the number of effective turns, thus improving the torque constant and efficiency of the motor. The motor includes a slotted stator formed with a number of teeth, main windings concentrically wound around the teeth of the stator, auxiliary windings for compensating the main windings wound concentrically around the linking parts of the teeth and connected to the main windings, and a rotor with permanent magnets and a yoke.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: September 30, 2003
    Assignee: Hanyang Hak Won Co., Ltd.
    Inventors: Gunhee Jang, Junghwan Chang, Kyungsu Kim
  • Publication number: 20030006658
    Abstract: An ultra-slim disk-spindle motor includes a cylindrical hub 250 of which both ends are opened, the hub having an inner protruding portion 251 formed along a central portion of an inner circumferential face of the hub and an outer protruding portion 252 formed along an upper side of the outer circumferential face of the hub, an upper ball bearing 242 and a lower ball bearing 241 being fixedly inserted above and below the inner protruding portion 251, a permanent magnet 260 bonded to a lower side of an outer circumferential face of the outer protruding portion 252 of the hub 250, a disk 270 mounted on an upper face of the outer protruding portion 252 of the hub 250 and a clamp 280 fixed with the hub using a bolt 281 and 282 in order to mount the disk 270.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 9, 2003
    Applicant: Gunhee JANG
    Inventors: Gunhee Jang, Kyungsu Kim
  • Publication number: 20020185929
    Abstract: The present invention relates to a brushless DC motor with armature windings compensated by auxiliary windings, and particularly to a brushless DC motor with armature windings compensated by auxiliary windings wound around the linking parts of each pair of adjacent teeth of the slotted stator, to increase the number of effective turns, thus improving the torque constant and efficiency of the motor.
    Type: Application
    Filed: June 12, 2001
    Publication date: December 12, 2002
    Applicant: Gunhee JANG
    Inventors: Gunhee Jang, Junghwan Chang, Kyungsu Kim