Patents by Inventor Min Joo Choi

Min Joo 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).

  • Patent number: 12108163
    Abstract: A sequential image photographing device for photographing sequential images of an object to be observed includes: an illuminating unit configured to sequentially irradiate a plurality of light having different wavelength bands to the object; a digital camera configured to photograph the object illuminated by the plurality of the light emitted from the illuminating unit; a controller controlling the illuminating unit and the digital camera; and an image processing unit configured to extract a plurality of channel images corresponding to the respective wavelength band from the image photographed by the digital camera and to obtain the sequential images of the object.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: October 1, 2024
    Assignee: Jeju National University Industry—Academic Cooperation Foundation
    Inventors: Min Joo Choi, Jong Min Kim, Gwan Suk Kang
  • Patent number: 12097076
    Abstract: A method for displaying a passive cavitation image that shows characteristic information of a passive cavitation includes: receiving an ultrasound signal caused by the passive cavitation; generating a plurality of first passive cavitation images for the passive cavitation at predetermined respective time frame using the received ultrasound signal by a DAS beam forming; generating a plurality of second passive cavitation images in which a maximum magnitude signal region is displayed by selecting a main lobe region having a magnitude greater than or equal to a predetermined value in the respective first passive cavitation image; generating a main lobe passive cavitation image in which a main region is displayed in the respective time frame by superimposing the plurality of the second passive cavitation images obtained for the respective time frame; and generating a passive cavitation image by displaying the main lobe passive cavitation image on a background image.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: September 24, 2024
    Inventor: Min Joo Choi
  • Publication number: 20240219224
    Abstract: An acoustic output of therapeutic devices used in shock wave therapy can be obtained by measuring the pressure waves radiated from the pressure wave transducer in water. Since the pressure waves used in shock wave therapy generate severe bubbles in water, measuring the surface vibrations of the pressure wave transducer using the laser Doppler method includes significant noise caused by the bubbles. This invention utilizes a filter generated to eliminate the noise in the vibration signals measured by the laser Doppler method, which is caused by the bubbles. The filter is generated by comparing the vibration signals measured in degassed distilled water with the reference signals measured in air at the minimum output setting of the shock wave generation device. Using the filter, it is possible to estimate the vibration signals of the pressure wave transducer generated underwater under the set conditions of the specific shock wave generating device.
    Type: Application
    Filed: December 27, 2023
    Publication date: July 4, 2024
    Applicant: JEJU NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Min Joo CHOI, Oh Bin KWON, Sung Joung JEON, Tae Hyo JANG
  • Patent number: 11617052
    Abstract: An apparatus for optimizing a binaural beat according to an embodiment of the present invention includes: a binaural beat generator that generates a binaural beat; and a binaural beat controller that optimizes the binaural beat in consideration of a hearing state of left and right ears of a listener. A method for optimizing a binaural beat according to an embodiment of the present invention includes: generating a binaural beat; and optimizing the binaural beat in consideration of a hearing state of left and right ears of a listener.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: March 28, 2023
    Inventor: Min Joo Choi
  • Publication number: 20230055002
    Abstract: A sequential image photographing device for photographing sequential images of an object to be observed includes: an illuminating unit configured to sequentially irradiate a plurality of light having different wavelength bands to the object; a digital camera configured to photograph the object illuminated by the plurality of the light emitted from the illuminating unit; a controller controlling the illuminating unit and the digital camera; and an image processing unit configured to extract a plurality of channel images corresponding to the respective wavelength band from the image photographed by the digital camera and to obtain the sequential images of the object.
    Type: Application
    Filed: January 3, 2020
    Publication date: February 23, 2023
    Applicant: JEJU NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Min Joo CHOI, Jong Min KIM, Gwan Suk KANG
  • Publication number: 20220101579
    Abstract: A method for displaying a passive cavitation image that shows characteristic information of a passive cavitation includes: receiving an ultrasound signal caused by the passive cavitation; generating a plurality of first passive cavitation images for the passive cavitation at predetermined respective time frame using the received ultrasound signal by a DAS beam forming; generating a plurality of second passive cavitation images in which a maximum magnitude signal region is displayed by selecting a main lobe region having a magnitude greater than or equal to a predetermined value in the respective first passive cavitation image; generating a main lobe passive cavitation image in which a main region is displayed in the respective time frame by superimposing the plurality of the second passive cavitation images obtained for the respective time frame; and generating a passive cavitation image by displaying the main lobe passive cavitation image on a background image.
    Type: Application
    Filed: January 3, 2020
    Publication date: March 31, 2022
    Inventor: Min Joo CHOI
  • Publication number: 20210345059
    Abstract: An apparatus for optimizing a binaural beat according to an embodiment of the present invention includes: a binaural beat generator that generates a binaural beat; and a binaural beat controller that optimizes the binaural beat in consideration of a hearing state of left and right ears of a listener. A method for optimizing a binaural beat according to an embodiment of the present invention includes: generating a binaural beat; and optimizing the binaural beat in consideration of a hearing state of left and right ears of a listener.
    Type: Application
    Filed: May 8, 2020
    Publication date: November 4, 2021
    Inventor: Min Joo CHOI
  • Patent number: 10363440
    Abstract: The present invention has been made in an effort to provide a line-focused ultrasound transducer and a high intensity line-focused ultrasound generation device including the same in which ultrasound is focused in a line so that the treatment time can be reduced and the structure can be simplified. A line-focused ultrasound transducer which focuses in a line shape includes: a therapeutic piezoelectric member having a hollow semi-cylindrical shape; a first electrode portion which is provided on an inner surface of the therapeutic piezoelectric member; and a second electrode portion which is provided on an outer surface of the therapeutic piezoelectric member in correspondence with the first electrode portion.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: July 30, 2019
    Assignee: KORUST CO., LTD.
    Inventors: Sung-Chan Cho, Min-Joo Choi
  • Publication number: 20160001097
    Abstract: The present invention has been made in an effort to provide a line-focused ultrasound transducer and a high intensity line-focused ultrasound generation device including the same in which ultrasound is focused in a line so that the treatment time can be reduced and the structure can be simplified. A line-focused ultrasound transducer which focuses in a line shape includes: a therapeutic piezoelectric member having a hollow semi-cylindrical shape; a first electrode portion which is provided on an inner surface of the therapeutic piezoelectric member; and a second electrode portion which is provided on an outer surface of the therapeutic piezoelectric member in correspondence with the first electrode portion.
    Type: Application
    Filed: December 6, 2013
    Publication date: January 7, 2016
    Applicant: KORUST CO., LTD.
    Inventors: Sung-Chan CHO, Min-Joo CHOI
  • Patent number: 7020542
    Abstract: An apparatus for measuring and fixing the three-dimensional location of medical instrument that can be easily placed at a desired location by a user. In addition, a medical apparatus for measuring the three-dimensional locations of an apparatus fixed at an end portion of a cancer and an external apparatus and fixing the apparatus at an end portion of the cancer, which can be easily placed at a desired location by a user and carries out the location-fixing and measuring at the same time. The apparatus is applicable for various medical fields such as the measurement of the location and orientation of an external apparatus, the measurement of relative locations of a medical instrument contacted to an end-portion of a cancer and the object body, and the fixation of the instrument at a desired location.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: March 28, 2006
    Assignee: Korea Institute of Science and Technology
    Inventors: Mun Sang Kim, Sung Kee Park, Jong Suk Choi, Chang Hyun Cho, Dong Seok Ryu, Yo Ha Hwang, Min Joo Choi
  • Publication number: 20030216821
    Abstract: The present invention relates to an apparatus for measuring and fixing the three-dimensional location of medical instrument that can be easily placed at a desired location by a user.
    Type: Application
    Filed: May 14, 2003
    Publication date: November 20, 2003
    Inventors: Mun Sang Kim, Sung Kee Park, Jong Suk Choi, Chang Hyun Cho, Dong Seok Ryu, Yo Ha Hwang, Min Joo Choi