Patents by Inventor Dong-Cheol Choi

Dong-Cheol 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).

  • Separable cassette for measuring glycated hemoglobin
    Patent number: 11474120
    Abstract: The present invention relates to a separable cassette for measuring glycated hemoglobin. It is easy to use the separable cassette for measuring glycated hemoglobin of the present invention since a reagent is sequentially leaked during the rotation thereof. In addition, there is no need to shake the reagent beforehand, as the reagent without residual reagent is fully discharged by the rotation. Therefore, the measurement result is accurate because an error between the amount of the reagent used and the amount of sample blood is small.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 18, 2022
    Assignee: GREEN CROSS MEDICAL SCIENCE
    Inventors: Hyu Jeong Kim, Hyong Soo Kim, Dong Han Kim, Eun Myung Shin, Jung Sub Shin, Soon Min Hong, Su Hyun Lee, Dong Cheol Choi
  • Measurement method for glycated hemoglobin ratio
    Patent number: 11226344
    Abstract: Disclosed is a measurement method for a glycated hemoglobin ratio. According to a measurement method for a glycated hemoglobin ratio of the present invention, reagents are easy and convenient to use because of their sequential leakage during the rotation of a cassette, are all discharged by the rotation with no remaining reagent, and are not mixed with each other. Therefore, measurement results are accurate, with fewer errors in the quantities of used reagents and sample blood.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: January 18, 2022
    Assignee: GREEN CROSS MEDICAL SCIENCE
    Inventors: Hyu Jeong Kim, Hyong Soo Kim, Dong Han Kim, Eun Myung Shin, Jung Sub Shin, Soon Min Hong, Su Hyun Lee, Dong Cheol Choi
  • MEASUREMENT METHOD FOR GLYCATED HEMOGLOBIN RATIO
    Publication number: 20190242911
    Abstract: Disclosed is a measurement method for a glycated hemoglobin ratio. According to a measurement method for a glycated hemoglobin ratio of the present invention, reagents are easy and convenient to use because of their sequential leakage during the rotation of a cassette, are all discharged by the rotation with no remaining reagent, and are not mixed with each other. Therefore, measurement results are accurate, with fewer errors in the quantities of used reagents and sample blood.
    Type: Application
    Filed: November 4, 2016
    Publication date: August 8, 2019
    Applicant: GREEN CROSS MEDICAL SCIENCE
    Inventors: Hyu Jeong KIM, Hyong Soo KIM, Dong Han KIM, Eun Myung SHIN, Jung Sub SHIN, Soon Min HONG, Su Hyun LEE, Dong Cheol CHOI
  • SEPARABLE CASSETTE FOR MEASURING GLYCATED HEMOGLOBIN
    Publication number: 20190234981
    Abstract: The present invention relates to a separable cassette for measuring glycated hemoglobin. It is easy to use the separable cassette for measuring glycated hemoglobin of the present invention since a reagent is sequentially leaked during the rotation thereof. In addition, there is no need to shake the reagent beforehand, as the reagent without residual reagent is fully discharged by the rotation. Therefore, the measurement result is accurate because an error between the amount of the reagent used and the amount of sample blood is small.
    Type: Application
    Filed: September 29, 2016
    Publication date: August 1, 2019
    Applicant: GREEN CROSS MEDICAL SCIENCE
    Inventors: Hyu Jeong KIM, Hyong Soo KIM, Dong Han KIM, Eun Myung SHIN, Jung Sub SHIN, Soon Min HONG, Su Hyun LEE, Dong Cheol CHOI
  • Condensing sheet and method for preparing thereof
    Patent number: 9494825
    Abstract: A condensing sheet includes a light output unit that has a plurality of lenses, and a light input unit that faces the light output unit and includes a light penetration unit and a light reflection unit. The light reflect ion unit has a structure including a recess sinking toward the light output unit and a reflector received in the recess.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: November 15, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Hang-Suk Choi, Hoon-Seon Lee, Pyung-Gun Jun, Won-Bong Kwak, Dong-Cheol Choi, Jin-Kyu Kim
  • CONDENSING SHEET AND METHOD FOR PREPARING THEREOF
    Publication number: 20090323313
    Abstract: Disclosed is a condensing sheet, a method of manufacturing the condensing sheet, a backlight assembly including the condensing sheet, and a liquid crystal display including the backlight assembly. The condensing sheet includes a light output unit that has a plurality of lenses, and a light input unit that faces the light output unit and includes a light penetration unit and a light reflection unit. The light reflect ion unit has a structure including a recess sinking toward the light output unit and a reflector received in the recess.
    Type: Application
    Filed: September 6, 2007
    Publication date: December 31, 2009
    Inventors: Hang-Suk Choi, Hoon-Seon Lee, Pyung-Gun Jun, Won-Bong Kwak, Dong-Cheol Choi, Jin-Kyu Kim