Patents by Inventor Kwon-Sang Ryu

Kwon-Sang Ryu 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
  • Patent number: 10819463
    Abstract: A wireless communication with modulation and demodulation set based on channel information is disclosed. An operating method of a first wireless communication device includes: transmitting a pilot signal via a wireless channel to a second wireless communication device; receiving channel state information, estimated by and transmitted from the second wireless communication device in response to the pilot signal, the channel state information including amplitude information and phase information of a wireless channel; setting a modulation method for data transmission based on the amplitude information and the phase information of the wireless channel; generating modulated data based on the modulation method; and transmitting the modulated data via the wireless channel.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: October 27, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwon-yeol Park, Dong-woo Kim, Jong-han Kim, Joon-sang Ryu, Sang-hyun Lee
  • 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: 20200127759
    Abstract: A wireless communication with modulation and demodulation set based on channel information is disclosed. An operating method of a first wireless communication device includes: transmitting a pilot signal via a wireless channel to a second wireless communication device; receiving channel state information, estimated by and transmitted from the second wireless communication device in response to the pilot signal, the channel state information including amplitude information and phase information of a wireless channel; setting a modulation method for data transmission based on the amplitude information and the phase information of the wireless channel; generating modulated data based on the modulation method; and transmitting the modulated data via the wireless channel.
    Type: Application
    Filed: October 17, 2019
    Publication date: April 23, 2020
    Inventors: KWON-YEOL PARK, Dong-woo Kim, Jong-han Kim, Joon-sang Ryu, Sang-hyun Lee
  • 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
  • Patent number: 8626470
    Abstract: The present invention relates to a reversible permeability measuring device for measuring magnetic characteristics and magnetic flux change in a specimen, as one of a plurality of non-destructive methods for evaluating mechanical properties. The reversible permeability measuring device of the present invention directly measures a magnetic field change induced at the surface of the specimen through the use of a magnetic potentiometer and a flux meter, thereby accurately evaluating the deterioration of materials.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: January 7, 2014
    Assignees: Korea Research Institute of Standards and Science, Chung-Ang University Industry Academy Cooperation Foundation
    Inventors: Kwon Sang Ryu, Soo Young Park, Jong Seo Park, In Hyun Cheong, Kee-Bong Yoon
  • 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
  • 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
  • Patent number: 8283918
    Abstract: A detection apparatus for an eddy current in a heat generating tube using a permeability measurement method, and a method using the apparatus are provided. In the detection apparatus, a bobbin type probe acquires detection information with respect to a magnetic flux change by a magnetic phase occurring in the heat generating tube using a coil which is wound in an axis direction of at least one yoke located in a perpendicular direction with a bobbin of the bobbin type probe, and a material having a corresponding magnetic phase and a circumferential defect, which is difficult to be detected by the bobbin type probe, are detected based on the detection information.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: October 9, 2012
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Duck-Gun Park, Derac Son, Kwon-Sang Ryu, Dae-hyuk Jyung, Whung-whoe Kim
  • Publication number: 20110112789
    Abstract: The present invention relates to a reversible permeability measuring device for measuring magnetic characteristics and magnetic flux change in a specimen, as one of a plurality of non-destructive methods for evaluating mechanical properties. The reversible permeability measuring device of the present invention directly measures a magnetic field change induced at the surface of the specimen through the use of a magnetic potentiometer and a flux meter, thereby accurately evaluating the deterioration of materials.
    Type: Application
    Filed: July 1, 2009
    Publication date: May 12, 2011
    Applicants: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE, Chung-Ang Univerisity Industry-Academy Cooperation Foundation
    Inventors: Kwon Sang Ryu, Soo Young Park, Jong Seo Park, In Hyun Cheong, Kee-Bong Yoon
  • Publication number: 20100301851
    Abstract: A detection apparatus for an eddy current in a heat generating tube using a permeability measurement method, and a method using the apparatus are provided. In the detection apparatus, a bobbin type probe acquires detection information with respect to a magnetic flux change by a magnetic phase occurring in the heat generating tube using a coil which is wound in an axis direction of at least one yoke located in a perpendicular direction with a bobbin of the bobbin type probe, and a material having a corresponding magnetic phase and a circumferential defect, which is difficult to be detected by the bobbin type probe, are detected based on the detection information.
    Type: Application
    Filed: January 23, 2007
    Publication date: December 2, 2010
    Applicant: KOREA ATOMIC ENERGY RESEARCH INSTITUTE
    Inventors: Duck-Gun Park, Derac Son, Kwon-Sang Ryu, Dae-hyuk Jyung, Whung-whoe Kim