Patents by Inventor Geon U JU

Geon U JU 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).

  • Concentration measurement device and concentration measurement and calibration method using the device
    Patent number: 11668648
    Abstract: A concentration measurement device may include a beam splitter. The concentration measurement device may include a first optical path and a second optical path. The concentration measurement device may include a rotatable disk. The first optical path and the second optical path may reach to the rotatable disk. The rotatable disk may include at least one passing portion and at least one reflecting portion. The concentration measurement device may include a light receiver configured to detect a wavelength of the first light ant second light. The concentration measurement device may include a controller comparing the wavelengths of the first and second light. The controller compares the concentration of the object material with a reference concentration of the object material to obtain concentration control information, and the controller compares the concentration of the reference material with a normal concentration of the reference material for a concentration calibration.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: June 6, 2023
    Assignee: SK hynix Inc.
    Inventor: Geon U Ju
  • CONCENTRATION MEASUREMENT DEVICE AND CONCENTRATION MEASUREMENT AND CALIBRATION METHOD USING THE DEVICE
    Publication number: 20220003663
    Abstract: A concentration measurement device may include a beam splitter. The concentration measurement device may include a first optical path and a second optical path. The concentration measurement device may include a rotatable disk. The first optical path and the second optical path may reach to the rotatable disk. The rotatable disk may include at least one passing portion and at least one reflecting portion. The concentration measurement device may include a light receiver configured to detect a wavelength of the first light ant second light. The concentration measurement device may include a controller comparing the wavelengths of the first and second light. The controller compares the concentration of the object material with a reference concentration of the object material to obtain concentration control information, and the controller compares the concentration of the reference material with a normal concentration of the reference material for a concentration calibration.
    Type: Application
    Filed: February 11, 2021
    Publication date: January 6, 2022
    Inventor: Geon U JU