Publications

Y. P. Lai, T. Lee, D. Sieben, L. Gauthier, J. Nam, and E. Diller, “Hybrid Hydrogel-Magnet Actuated Capsule for Automatic Gut Microbiome Sampling,” IEEE Transactions on Biomedical Engineering, pp. 1–12, May 2024

S. Im, S. Kim, J. Yun, and J. Nam, “Robot-aided magnetic navigation system for wireless capsule manipulation,” Micromachines, vol. 14, no. 2, Art. no. 2, Feb. 2023

J. Nam, Y. P. Lai, L. Gauthier, G. Jang, and E. Diller, “Resonance-based design of wireless magnetic capsule for effective sampling of microbiome in gastrointestinal tract,” Sensors and Actuators A: Physical, vol. 342, p. 113654, Aug. 2022

S. Kim, M. Cho, S. Im, J. Yun, and J. Nam, “Electrical optimization method based on a novel arrangement of the magnetic navigation system with gradient and uniform saddle coils,” Sensors, vol. 22, no. 15, Art. no. 15, Jul. 2022

E. Jung, J. Nam, W. Lee, J. Kim, and G. Jang, “Crawling magnetic robot to perform a biopsy in tubular environments by controlling a magnetic field,” Appl. Sci., vol. 11, no. 11, Art. no. 11, Jan. 2021

W. Lee, J. Nam, J. Kim, E. Jung, N. Kim, and G. Jang, “Steering, tunneling, and stent delivery of a multifunctional magnetic catheter robot to treat occlusive vascular disease,” IEEE Trans. Ind. Electron., vol. 68, no. 1, pp. 391–400, Jan. 2021

J. Nam, W. Lee, E. Jung, and G. Jang, “Magnetic navigation system utilizing a closed magnetic circuit to maximize magnetic field and a mapping method to precisely control magnetic field in real time,” IEEE Trans. Ind. Electron., vol. 65, no. 7, pp. 5673–5681, Jul. 2018

W. Lee, J. Nam, J. Kim, E. Jung, and G. Jang, “Effective locomotion and precise unclogging motion of an untethered flexible-legged magnetic robot for vascular diseases,” IEEE Trans. Ind. Electron., vol. PP, no. 99, pp. 1–1, Jul. 2017.

J. Nam, W. Lee, J. Kim, and G. Jang, “Magnetic helical robot for targeted drug-delivery in tubular environments,” IEEE/ASME Trans. Mechatron., vol. PP, no. 99, pp. 1–1, Oct. 2017.

J. Nam, W. Lee, B. Jang, and G. Jang, “Magnetic navigation system utilizing resonant effect to enhance magnetic field applied to magnetic robots,” IEEE Trans. Ind. Electron., vol. 64, no. 6, pp. 4701–4709, Jun. 2017.

S. Jeon, J. Nam, W. Lee, and G. Jang, “Selective navigating and unclogging motions of an intravascular helical magnetic millirobot actuated by external biaxial rotating magnetic fields,” IEEE/ASME Trans. Mechatron., vol. 22, no. 3, pp. 1456–1464, Jun. 2017.

B. Jang, J. Nam, W. Lee, and G. Jang, “A crawling magnetic robot actuated and steered via oscillatory rotating external magnetic fields in tubular environments,” IEEE/ASME Trans. Mechatron., vol. 22, no. 3, pp. 1465–1472, Jun. 2017.

J. Kim, J. Nam, W. Lee, B. Jang, and G. Jang, “Precise position control of a helical magnetic robot in pulsatile flow using the rotating frequency of the external magnetic field,” AIP Adv., vol. 7, no. 5, p. 056712, May 2017.

W. Lee, J. Nam, B. Jang, and G. Jang, “Selective motion control of a crawling magnetic robot system for wireless self-expandable stent delivery in narrowed tubular environments,” IEEE Trans. Ind. Electron., vol. 64, no. 2, pp. 1636–1644, Feb. 2016.

G. B. Jang, S. Jeon, J. Nam, W. Lee, and G. Jang, “A spiral microrobot performing navigating linear and drilling motions by magnetic gradient and rotating uniform magnetic field for applications in unclogging blocked human blood vessels,” IEEE Trans. Magn., vol. 51, no. 11, pp. 1–4, Nov. 2015.

S. Jeon, G. Jang, J. Nam, and S. Kim, “Manipulation of permanent magnet beads with head-to-tail ring formation on thin 3D surfaces,” Sens. Actuators Phys., vol. 233, pp. 532–541, Sep. 2015.

K. Choi, S. M. Jeon, J. K. Nam, and G. H. Jang, “A magnetic minirobot with anchoring and drilling ability in tubular environments actuated by external magnetic fields,” J. Appl. Phys., vol. 117, no. 17, p. 17A730, May 2015.

S. J. Kim, G. H. Jang, S. M. Jeon, and J. K. Nam, “A crawling and drilling microrobot driven by an external oscillating or precessional magnetic field in tubular environments,” J. Appl. Phys., vol. 117, no. 17, p. 17A703, May 2015.

W. Lee, S. Jeon, J. Nam, and G. Jang, “Dual-body magnetic helical robot for drilling and cargo delivery in human blood vessels,” J. Appl. Phys., vol. 117, no. 17, p. 17B314, May 2015.

J. K. Nam, S. M. Jeon, W. S. Lee, and G. H. Jang, “Control of a three-dimensional magnetic force generated from a magnetic navigation system to precisely manipulate the locomotion of a magnetic microrobot,” J. Appl. Phys., vol. 117, no. 17, p. 17A726, May 2015.

K. Choi, G. Jang, S. Jeon, and J. Nam, “Capsule-type magnetic microrobot actuated by an external magnetic field for selective drug delivery in human blood vessels,” IEEE Trans. Magn., vol. 50, no. 11, pp. 1–4, Nov. 2014.

J. Nam, G. H. Jang, S. M. Jeon, and K. Choi, “Development of a crawling microrobot with high steering capability and high stability to navigate through a sharply bent tubular environment,” IEEE Trans. Magn., vol. 50, no. 11, pp. 1–4, Nov. 2014.

S. Jeon, G. Jang, and J. Nam, “Magnetic equilibrium postures of a multibody magnetic microrobot composed of a spherical magnet chain,” Microsyst. Technol., vol. 20, no. 8–9, pp. 1471–1478, Aug. 2014.

S. M. Jeon, J. K. Nam, K. Choi, and G. H. Jang, “A self-positioning and rolling magnetic microrobot on arbitrary thin surfaces,” J. Appl. Phys., vol. 115, no. 17, p. 17E303, May 2014.

S. J. Kim, S. M. Jeon, J. K. Nam, and G. H. Jang, “Closed-Loop control of a self-positioning and rolling magnetic microrobot on 3d thin surfaces using biplane imaging,” IEEE Trans. Magn., vol. 50, no. 11, pp. 1–4, Nov. 2014.

J. Nam, S. Jeon, S. Kim, and G. Jang, “Crawling microrobot actuated by a magnetic navigation system in tubular environments,” Sens. Actuators Phys., vol. 209, pp. 100–106, Mar. 2014.

D. Y. Kim, J. K. Nam, and G. H. Jang, “Reduction of magnetically induced vibration of a spoke-type IPM motor using magnetomechanical coupled analysis and optimization,” IEEE Trans. Magn., vol. 49, no. 9, pp. 5097–5105, Sep. 2013.

D. Y. Kim, G. H. Jang, and J. K. Nam, “Magnetically induced vibrations in an IPM motor due to distorted magnetic forces arising from flux weakening control,” IEEE Trans. Magn., vol. 49, no. 7, pp. 3929–3932, Jul. 2013.

J. Nam, W. Lee, S. Kim, and G. Jang, “Magnetic helical robot with navigating, drug-release and drilling capabilities without drug leakage in human blood vessels,” 61th Annual Conference on Magnetism and Magnetic Materials, 2016, New Oleans, USA.

S. Kim, J. Nam, W. Lee, B. Jang, and G. Jang, “Precise control of a helical microrobot in pulsatile flow by controlling the rotating frequency of the external magnetic field,” 61th Annual Conference on Magnetism and Magnetic Materials, 2016, New Oleans, USA.

J. Nam, W. Lee, B. Jang, and G. Jang, “Magnetic navigation system utilizing the resonance effect of rlc circuit to effectively generate alternating magnetic field,” 2016 Joint MMM-Intermag Conference, 2016, San Diego, USA.

W. Lee, J. Nam, B. Jang, and G. Jang, “Development of a magnetic pulley module for a crawling magnetic robot to deliver and deploy a self-expandable stent in narrowed blood vessels,” 2016 Joint MMM-Intermag Conference, 2016, San Diego, USA.

J. Nam, S. Jeon, W. Lee, and G. Jang, “Control of a three-dimensional magnetic force generated from a magnetic navigation system to precisely manipulate the locomotion of a magnetic microrobot,” 59th Annual Conference on Magnetism and Magnetic Materials, 2014, Honolulu, USA.

W. Lee, S. Jeon, J. Nam, and G. Jang, “Dual-body magnetic helical robot for drilling and cargo delivery in human blood vessels,” 59th Annual Conference on Magnetism and Magnetic Materials, 2014, Honolulu, USA.

S. Kim, S. Jeon, J. Nam, and G. Jang, “A crawling and drilling microrobot driven by an external oscillating or precessional magnetic field in tubular environments,” 59th Annual Conference on Magnetism and Magnetic Materials, 2014, Honolulu, USA.

K. Choi, S. Jeon, J. Nam, and G. Jang, “A magnetic minirobot with anchoring and drilling ability in tubular environments actuated by external magnetic fields,” 59th Annual Conference on Magnetism and Magnetic Materials, 2014, Honolulu, USA.

J. Nam, S. Jeon, K. Choi, and G. Jang, “Development of a crawling microrobot with high steering capability and high stability to navigate through sharply bent human blood vessels,” 2014 International Magnetics Conference, 2014, Dresden, Germany.

S. Jeon, G. Jang, J. Nam, and S. Kim, “Self-assembled magnetic beads capable of self-positioning and locomoting on arbitrary thin surfaces,” 2014 International Magnetics Conference, 2014, Dresden, Germany.

S. Kim, S. Jeon, J. Nam, and G. Jang, “Closed-loop control of a self-positioning and rolling magnetic microrobot on 3d thin surfaces using bi-plane imaging,” 2014 International Magnetics Conference, 2014, Dresden, Germany.

K. Choi, G. Jang, S. Jeon, and J. Nam, “Capsule-type magnetic microrobot actuated by an external magnetic field for selective drug delivery in human blood vessels,” 2014 International Magnetics Conference, 2014, Dresden, Germany.

S. Jeon, G. Jang, J. Nam, and K. Choi, “Self-positioning and rolling microrobots actuated by magnetic navigation system on arbitrary thin surfaces,” 58th Conference on Magnetism and Magnetic Materials, 2013, Denver, USA.

S. Jeon, J. Nam, and G. Jang, “Manipulation of multibody magnetic microrobots composed of spherical magnets using external magnetic fields,” 2013 The Korean Society of Mechanical Engineering Bio, 2013, Yeosu, Korea.

J. Nam, S. Jeon, and G. Jang, “Development of crawling microrobot actuated by external magnetic field in human blood vessels,” 2013 The Korean Society of Mechanical Engineering Bio, 2013, Yeosu, Korea.

J. Nam, H. Go, S. Kim and Y. Lee, “Brake device of inwheel motor and inwheel motor having the same”, registration number 10-2656171, 2024.

J. Nam, J. Hong and S. Oh, “Brake device of inwheel motor and inwheel motor having the same”, registration number 10-2614768, 2023.

J. Nam, and S. Oh, “Rim cover assembly having waterproof structure and inwheel motor having the same”, registration number 10-2396573, 2022.

J. Nam, H. Nam, and J. Hong, “Inwheel motor”, registration number 10-227577, 2021.

J. Nam, and S. Oh, “Rim cover assembly having waterproof structure and inwheel motor having the same”, registration number 10-2293316, 2021.

J. Nam, and G. Jang, “Robot for drug delivery”, registration number 10-1786427, 2017.

W. Lee, J. Nam, and G. Jang, “Magnetic tube system”, registration number 10-1782744, 2017.

J. Jang, W. Lee, J. Nam, and G. Jang, “Moving robot and moving robot system including the robot”, registration number 10-1772338, 2017.

J. Nam, and G. Jang, “Apparatus for generating magnetic field”, registration number 10-176015, 2017

W. Lee, J. Nam, and G. Jang, “Magnetic pulley apparatus to deploy the self-expandable stent”, registration number 10-1394798, 2016.

J. Nam, and G. Jang, “Micro-robot for motion in tubular shape”, registration number 10-1462588, 2014

J. Nam, and G. Jang, “A microrobot and microrobot system manipulated by external magnetic field for motion in tubular shape”, registration number 10-1394798, 2014.

W. Lee, J. Nam, E. Jung, and G. Jang, “Magnetically actuated stent delivery apparatus”, registration number 10-1806081, 2014.

W. Lee, J. Nam, J. Kim, and G. Jang, “Magnetic robot system”, registration number 10-1818400, 2014

E. Jung, J. Nam, and G. Jang, “Magnetically actuated crawling biopsy robot in tubular environments”, registration number 10-1858904, 2014.

W. Lee, J. Nam, E. Jung, and G. Jang, “Stent delivery device”
- PCT/KR2018/006840 (PCT, 2018)
- 16/633,880 (United States, 2020)
- 18837430.0 (Europe, 2020)
- 201880049146.1 (China, 2020).

W. Lee, G. Jang, J. Nam, and J. Kim, “Magnetic robot system”
- PCT/KR2018/003910 (PCT, 2018)
- 16/637,472 (United States, 2020)
- 18843302.3 (Europe, 2020).

E. Jung, G. Jang, and J. Nam, “Magnetic robot”
- PCT/KR2018/003911 (PCT, 2018)
- 16/633,888 (United States, 2020)
- 18837839.2 (Europe, 2020).

J. Nam, and G. Jang, “Drug delivery robot”
- PCT/KR2018/006839 (PCT, 2018)
- 16/626,042 (United States, 2019)
- 18820047.1 (Europe, 2020)
- 201880041585.8 (China, 2019).

J. Nam, G. Jang, W. Lee, B. Jang, “Magnetic field control system”
- PCT/KR2017/004070 (PCT, 2017)
- 16/324,165 (United States, 2019)
- 3,033,342 (Canada, 2021)
- 17839628.9 (Europe, 2019)
- ZL201780049009.3 (China, 2021)
- 6782833 (Japan, 2020)
- 201917004955 (India, 2019).