Patents by Inventor Sungnam Park

Sungnam Park 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: 20210055219
    Abstract: A down-converted light emitting combination that generates a visible light when an ultraviolet light is incident is provided. The down-converted light emitting combination includes a first structure made of a first material that generates a visible light of a first color when an ultraviolet light of a first wavelength range is incident and a second structure made of a second material that generates a visible light of a second color different from the first color when the ultraviolet light of a second wavelength range different from the first wavelength range is incident, and the first material and the second material have different emission colors and distributions of intensities of the visible lights generated depending on a wavelength of the incident ultraviolet light.
    Type: Application
    Filed: August 20, 2020
    Publication date: February 25, 2021
    Applicant: Korea University Research and Business Foundation
    Inventors: Woong KIM, Sungnam PARK, Wonbae SOHN, Gangyeol YOO, Chiho LEE
  • Publication number: 20190298302
    Abstract: Provided is an ultrasound imaging apparatus for predicting fetal growth rate, including: an ultrasound probe configured to transmit ultrasound signals to a fetus and receive ultrasound echo signals reflected from the fetus; a user inputter configured to receive pregnancy information regarding a patient from a user; a communicator configured to receive, from a cloud server, fetal biometric data related to the pregnancy information regarding the patient from among fetal biometric data prestored and accumulated in the cloud server; and a controller configured to generate an ultrasound image of the fetus by using the ultrasound echo signals, measure a size of a body part of the fetus on the ultrasound image, and predict the fetal growth rate based on the measured size of the body part of the fetus and the fetal biometric data received from the cloud server.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 3, 2019
    Applicant: SAMSUNG MEDISON CO., LTD.
    Inventors: Hoki Hong, Daebong Park, Sungnam Park, Jaeho Lee, Jeong Cho, Soonjae Hong
  • Patent number: 7599069
    Abstract: Provided are techniques for generating optical vector beams (e.g., radially and azimuthally polarized light) using passive or active phase stable optical interferometry. Techniques may split an input optical beam into at least two output beams, and then couple those beams simultaneously into a passively phase stable optical interferometer. Beam splitting may be achieved by a diffractive optical element and coupling may be achieved by a single refractive optical device (lenses) or by a single mirror device (e.g., parabolic and spherical). The interferometer may provide the ability to manipulate (or transform) the polarization of part of the wavefront of each beam, as well as the ability to manipulate (or transform) the phase of part of the wavefront of each beam, such that the beams when combined have a vector beam polarization state.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: October 6, 2009
    Assignee: The University of Chicago
    Inventors: Kimani C. Toussaint, Jr., Norbert F. Scherer, Justin E. Jureller, Sungnam Park
  • Publication number: 20060268408
    Abstract: Provided are techniques for generating optical vector beams (e.g., radially and azimuthally polarized light) using passive or active phase stable optical interferometry. Techniques may split an input optical beam into at least two output beams, and then couple those beams simultaneously into a passively phase stable optical interferometer. Beam splitting may be achieved by a diffractive optical element and coupling may be achieved by a single refractive optical device (lenses) or by a single mirror device (e.g., parabolic and spherical). The interferometer may provide the ability to manipulate (or transform) the polarization of part of the wavefront of each beam, as well as the ability to manipulate (or transform) the phase of part of the wavefront of each beam, such that the beams when combined have a vector beam polarization state.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 30, 2006
    Inventors: Kimani Toussaint, Norbert Scherer, Justin Jureller, Sungnam Park