Patents by Inventor Sam Jin Choi

Sam Jin Choi 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).

  • Paper-based surface-enhanced raman scattering substrate, and preparation method therefor
    Patent number: 10379053
    Abstract: The present invention relates to: a paper-based surface-enhanced Raman scattering (SERS) substrate comprising metal nanoparticles, which are uniformly distributed and adsorbed on a designed pattern and have a diameter of 1 nm to 100 nm; a point-of-care (POC) diagnostic kit, comprising the paper-based SERS substrate; and a method for preparing the paper-based SERS substrate.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: August 13, 2019
    Assignee: University-Industry Cooperation Group of Kyung Hee University
    Inventors: Sam Jin Choi, Wan Sun Kim, Jae-Ho Shin, Hun Kuk Park
  • Paper-Based Surface-Enhanced Raman Scattering Substrate, and Preparation Method Therefor
    Publication number: 20180080878
    Abstract: The present invention relates to: a paper-based surface-enhanced Raman scattering (SERS) substrate comprising metal nanoparticles, which are uniformly distributed and adsorbed on a designed pattern and have a diameter of 1 nm to 100 nm; a point-of-care (POC) diagnostic kit, comprising the paper-based SERS substrate; and a method for preparing the paper-based SERS substrate.
    Type: Application
    Filed: June 2, 2016
    Publication date: March 22, 2018
    Inventors: Sam Jin CHOI, Wan Sun Kim, Jae-Ho SHIN, Hun Kuk PARK
  • METHOD AND DEVICE FOR DIAGNOSING VIRAL INFECTION USING TEARDROP
    Publication number: 20170234798
    Abstract: The present invention relates to a method for providing information on the presence of viral infection, comprising: a first step of preparing a dried tear sample on a substrate; a second step of measuring a Raman spectrum from the dried tear sample; a third step of extracting Gaussian sub-peaks by deconvolution of the measured Raman spectrum; a fourth step of deriving a log value for the relative intensity ratio of a peak corresponding to an amide III ?-sheet and a peak corresponding to C—H deformation; and a fifth step of determining the sample as normal if the derived value is positive and as infected if the derived value is negative.
    Type: Application
    Filed: May 12, 2015
    Publication date: August 17, 2017
    Inventors: Sam Jin CHOI, Jae Ho SHIN, Hun Kuk PARK, Kyung Hyun JIN
  • Orthodontic force-measuring device using a typodont and a load cell
    Patent number: 8943886
    Abstract: The present invention relates to an orthodontic force measuring device using a typodont and a load cell, and more particularly, to an orthodontic force measuring device using a typodont and a load cell, which connects an orthodontic application wire to a typodont, employs a load cell to measure an orthodontic force, reduces measurement error which may occur in a measurement method based on an image, precisely measures an orthodontic force, and measures an orthodontic force in a three-dimensional manner.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: February 3, 2015
    Assignee: University-Industry Cooperation Group of Kyung Hee University
    Inventors: Hun Kuk Park, Sam Jin Choi, Ki Ho Park, Sung Hoon Lee, You Jin Cheong, Ok Kyun Kim, Hyun Jong Cho, Sung Vin Yim
  • ORTHODONTIC FORCE-MEASURING DEVICE USING A TYPODONT AND A LOAD CELL
    Publication number: 20140227652
    Abstract: The present invention relates to an orthodontic force measuring device using a typodont and a load cell, and more particularly, to an orthodontic force measuring device using a typodont and a load cell, which connects an orthodontic application wire to a typodont, employs a load cell to measure an orthodontic force, reduces measurement error which may occur in a measurement method based on an image, precisely measures an orthodontic force, and measures an orthodontic force in a three-dimensional manner.
    Type: Application
    Filed: September 26, 2012
    Publication date: August 14, 2014
    Inventors: Hun Kuk Park, Sam Jin Choi, Ki Ho Park, Sung Hoon Lee, You Jin Cheong, Ok Kyun Kim, Hyun Jong Cho, Sung Vin Yim