Patents by Inventor Seung Hoon Nahm

Seung Hoon Nahm 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: 20200386746
    Abstract: Disclosed is a sensor for the detection of a botulinum toxin using a carbon nanotube sheet, the sensor including carbon nanotubes and a botulinum toxin receptor formed on the carbon nanotubes.
    Type: Application
    Filed: October 13, 2017
    Publication date: December 10, 2020
    Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Seung-Hoon NAHM, Nam-Hee LEE, Kwon-Sang RYU, Un-Bong BAEK
  • Publication number: 20200225221
    Abstract: The present invention relates to a nano-dynamic biosensor and a fabrication method therefor. A biosensor according to the present invention comprises a substrate having a hollow structure and a graphene layer formed thereon wherein a probe material is bound to the surface of the graphene layer and the resonance vibration of the hollow structure formed in the substrate is modulated as the probe material increases in weight when a target material to be detected is coupled to the probe material without being labeled, whereby the biosensor is expected to take advantage of the modulation to measure the coupling of the target material including vaccinia virus with high sensitivity on a femtogram (10?15 g) level.
    Type: Application
    Filed: May 31, 2018
    Publication date: July 16, 2020
    Inventors: Seung Hoon NAHM, Nam Hee LEE, Kwon Sang RYU, Un Bong BAEK
  • Publication number: 20180015543
    Abstract: Provided is a metal powder bonded body having excellent hydrogen embrittlement resistance, wherein the metal powder bonded body is a metallic material having excellent hydrogen embrittlement resistance, the metallic material is a metal powder bonded body manufactured by bonding metal powder, and the metal powder bonded body has characteristics of ductile fracture in an area of 80% or more of a total area of a fracture section when fractured in a hydrogen atmosphere.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 18, 2018
    Inventors: Seung Wook BAEK, Seung Hoon NAHM, Un Bong BAEK
  • Publication number: 20180015540
    Abstract: Provided is a metal powder bonded body having excellent hydrogen embrittlement resistance, wherein the metal powder bonded body is a metallic material having excellent hydrogen embrittlement resistance, the metallic material is a metal powder bonded body manufactured by incrementally adding metal powder layer by layer, and the metal powder bonded body has characteristics of ductile fracture in an area of 80% or more of a total area of a fracture section when fractured in a hydrogen atmosphere.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 18, 2018
    Inventors: Seung Wook BAEK, Seung Hoon NAHM, Un Bong BAEK
  • Patent number: 9310337
    Abstract: Provided is a non-destructive inspection device for pressure containers using leakage-flux measurement, including: a coil winding mount disposed at one side on an outside of the pressure container to magnetize the pressure container; a sensor support provided with a plurality of magnetic field sensing sensors arranged at the other side on the outside of the pressure container; a yoke magnetizing the pressure container to generate a magnetic flux in a direction vertical to a direction of the magnetic flux generated by the coil winding mount; an endoscope attached with at least one magnetic field sensing sensor, and the like.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: April 12, 2016
    Assignee: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Kwon Sang Ryu, Soo Young Park, Yun-Hee Lee, Seung Hoon Nahm, Un Bong Baek
  • Patent number: 9128009
    Abstract: Provided is a ?E measuring device minimizing external magnetic disturbance, more particularly, a ?E measuring device measuring a change (?E) in elastic modulus under a magnetic field by removing a bias effect by the earth's magnetic field and a magnetic tool and device and using a magneto acoustic resonance method. With the ?E measuring device, a space minimizing external magnetic disturbance using three-axis Helmholtz coils is provided and the ?E measuring device having a plurality of coil structures is inserted into the space, thereby making it possible to minimize external magnetic field disturbance.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: September 8, 2015
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Kwon Sang Ryu, Soo Young Park, Seung Hoon Nahm, Young Il Kim
  • Publication number: 20140002068
    Abstract: Provided is a non-destructive inspection device for pressure containers using leakage-flux measurement, including: a coil winding mount disposed at one side on an outside of the pressure container to magnetize the pressure container; a sensor support provided with a plurality of magnetic field sensing sensors arranged at the other side on the outside of the pressure container; a yoke magnetizing the pressure container to generate a magnetic flux in a direction vertical to a direction of the magnetic flux generated by the coil winding mount; an endoscope attached with at least one magnetic field sensing sensor, and the like.
    Type: Application
    Filed: January 5, 2012
    Publication date: January 2, 2014
    Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Kwon Sang Ryu, Soo Young Park, Yun-Hee Lee, Seung Hoon Nahm, Un Bong Baek
  • Patent number: 8621661
    Abstract: Disclosed is an electrical-mechanical complex sensor for nanomaterials, including: a detector having a piezoelectric film therein, for measuring a mechanical property of a nanomaterial when a bending or tensile load is applied to the nanomaterial; a first detection film formed at an end of the detector to measure the mechanical property and an electrical property of the nanomaterial) in real time at the same time, when the nanomaterial contacts the first detection film; and a support to which one end of the detector is integrally connected, for supporting the detector.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: December 31, 2013
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Seung Hoon Nahm, Hoon Sik Jang, Sang Gu Jeon, Min Seok Kim
  • Patent number: 8481999
    Abstract: Provided is a hydrogen penetration barrier for preventing hydrogen from being diffused and discharged through a barrier and preventing hydrogen embrittlement of a material due to diffusion of hydrogen ions into a material. In detail, the hydrogen penetration barrier prevents penetration of hydrogen ions by using a built-in potential of a semiconductor layer doped with a p-type impurity and a semiconductor layer doped with an n-type impurity and a potential applied by a reverse biased voltage and includes an absorption layer absorbing the hydrogen molecules to primarily prevent the penetration of the hydrogen molecules and uses the absorption layer made of the conductive material as an application electrode of the reverse biased voltage and ionizes the hydrogen absorbed to the absorption layer to secondarily prevent the penetration of the hydrogen molecules and prevent the hydrogen embrittlement.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: July 9, 2013
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Yong Il Kim, In Jung Kim, Yun-Hee Lee, Kyoung Seok Lee, Seung Hoon Nahm
  • Publication number: 20130167272
    Abstract: Disclosed is an electrical-mechanical complex sensor for nanomaterials, including: a detector having a piezoelectric film therein, for measuring a mechanical property of a nanomaterial when a bending or tensile load is applied to the nanomaterial; a first detection film formed at an end of the detector to measure the mechanical property and an electrical property of the nanomaterial) in real time at the same time, when the nanomaterial contacts the first detection film; and a support to which one end of the detector is integrally connected, for supporting the detector.
    Type: Application
    Filed: January 10, 2011
    Publication date: June 27, 2013
    Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Seung Hoon Nahm, Hoon Sik Jang, Sang Gu Jeon, Min Seok Kim
  • Publication number: 20120310581
    Abstract: Provided is a ?E measuring device minimizing external magnetic disturbance, more particularly, a ?E measuring device measuring a change (?E) in elastic modulus under a magnetic field by removing a bias effect by the earth's magnetic field and a magnetic tool and device and using a magneto acoustic resonance method. With the ?E measuring device, a space minimizing external magnetic disturbance using three-axis Helmholtz coils is provided and the ?E measuring device having a plurality of coil structures is inserted into the space, thereby making it possible to minimize external magnetic field disturbance.
    Type: Application
    Filed: November 3, 2010
    Publication date: December 6, 2012
    Inventors: Kwon Sang Ryu, Soo Young Park, Seung Hoon Nahm, Young Il Kim
  • Publication number: 20120227467
    Abstract: The present invention relates to a device for testing resist pressure of a vessel wherein gas is stored at a high compressed state, before the use of the vessel, and to a method for testing resist pressure of a vessel by using the testing device. The device includes: the vessel provided as an object to which a resist pressure test is carried out; an elastic tube placed in the interior of the vessel and adapted to fill a liquid into the interior thereof; a pressurizing means adapted to apply a predetermined pressure to the elastic tube to allow the elastic tube to be expanded; and a pressure gauge adapted to gauge the pressure in the interior of the vessel, wherein a gas is filled into the vessel to apply a predetermined pressure to the interior of the vessel by the expansion of the elastic tube.
    Type: Application
    Filed: October 21, 2010
    Publication date: September 13, 2012
    Applicant: KOREAN RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Un Bong Baek, Seung Hoon Nahm, Hae Moo Lee, Yun-Hee Lee
  • Publication number: 20110175078
    Abstract: Provided is a hydrogen penetration barrier for preventing hydrogen from being diffused and discharged through a barrier and preventing hydrogen embrittlement of a material due to diffusion of hydrogen ions into a material. In detail, the hydrogen penetration barrier prevents penetration of hydrogen ions by using a built-in potential of a semiconductor layer doped with a p-type impurity and a semiconductor layer doped with an n-type impurity and a potential applied by a reverse biased voltage and includes an absorption layer absorbing the hydrogen molecules to primarily prevent the penetration of the hydrogen molecules and uses the absorption layer made of the conductive material as an application electrode of the reverse biased voltage and ionizes the hydrogen absorbed to the absorption layer to secondarily prevent the penetration of the hydrogen molecules and prevent the hydrogen embrittlement.
    Type: Application
    Filed: March 25, 2010
    Publication date: July 21, 2011
    Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Yong Il Kim, In Jung Kim, Yun-Hee Lee, Kyoung Seok Lee, Seung Hoon Nahm