Patents by Inventor Ka Young Lee

Ka Young Lee 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: 11925438
    Abstract: An apparatus for estimating body temperature of an object is provided. The apparatus for estimating body temperature includes: a sensor configured to obtain spectra through a plurality of light paths of an object; and a processor configured to obtain a temperature slope between temperatures corresponding to the plurality of light paths based on the spectra of the plurality of light paths and a reference spectrum measured at a reference temperature, and estimate the body temperature of the object based on the temperature slope.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: March 12, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Hyun Nam, So Young Lee, Ka Ram Choi
  • Patent number: 11911188
    Abstract: Provided is an apparatus for non-invasively monitoring a health condition. The apparatus for monitoring health according to an example embodiment of the disclosure includes: a pulse wave sensor configured to obtain a first pulse wave signal in a first contact state of an object and a second pulse wave signal in a second contact state of the object; and a processor configured to estimate a degree of vasodilation based on an alternating current (AC) component of each of the first pulse wave signal and the second pulse wave signal, configured to monitor a vascular health condition based on the estimated degree of vasodilation, and configured to output a result of monitoring the vascular health condition.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: So Young Lee, Jeong Eun Hwang, Ka Ram Choi
  • Patent number: 9353433
    Abstract: A method of fabricating a liquid for an oxide thin film is provided, which includes mixing at least two kinds of dispersoids selected from the group consisting of a Zinc compound, an Indium compound, a Gallium compound, a Tin compound and a Thallium compound, with dispersion media corresponding to the selected dispersoids to form a dispersion system, and stirring and aging the dispersion system at a predetermined temperature for a predetermined time, wherein a molar ratio of the Zinc compound to each of the Indium compound, Gallium compound, Tin compound and Thallium compound is 1:0.1 to 1:2. According to the present invention, the liquid for the oxide thin film may be fabricated by a sol-gel method making it capable of being implemented in mass production in a simple and low-cost manner as opposed to the conventional vacuum deposition method.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 31, 2016
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Hyun Jae Kim, Kyung Ho Kim, Gun Hee Kim, Tae Hoon Jeong, Hyun Soo Shin, Won Jun Park, Yun Jung Choi, Ka Young Lee
  • Patent number: 8685836
    Abstract: A method for forming a silicon layer according to inventive concept comprises: preparing an SOI substrate; applying an etchant or vapor of the etchant to the SOI substrate; and irradiating a light to the SOI substrate.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: April 1, 2014
    Assignee: Industry-Academic Corporation Foundation, Yonsei University
    Inventors: Taeyoon Lee, Ja Hoon Koo, Sang Wook Lee, Ka Young Lee
  • Publication number: 20140000480
    Abstract: A method of fabricating a liquid for an oxide thin film is provided, which includes mixing at least two kinds of dispersoids selected from the group consisting of a Zinc compound, an Indium compound, a Gallium compound, a Tin compound and a Thallium compound, with dispersion media corresponding to the selected dispersoids to form a dispersion system, and stirring and aging the dispersion system at a predetermined temperature for a predetermined time, wherein a molar ratio of the Zinc compound to each of the Indium compound, Gallium compound, Tin compound and Thallium compound is 1:0.1 to 1:2. According to the present invention, the liquid for the oxide thin film may be fabricated by a sol-gel method making it capable of being implemented in mass production in a simple and low-cost manner as opposed to the conventional vacuum deposition method.
    Type: Application
    Filed: August 30, 2013
    Publication date: January 2, 2014
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Hyun Jae Kim, Kyung Ho Kim, Gun Hee Kim, Tae Hoon Jeong, Hyun Soo Shin, Won Jun Park, Yun Jung Choi, Ka Young Lee
  • Patent number: 8523996
    Abstract: A method of fabricating a liquid for an oxide thin film is provided, which includes mixing at least two kinds of dispersoids selected from the group consisting of a Zinc compound, an Indium compound, a Gallium compound, a Tin compound and a Thallium compound, with dispersion media corresponding to the selected dispersoids to form a dispersion system, and stirring and aging the dispersion system at a predetermined temperature for a predetermined time, wherein a molar ratio of the Zinc compound to each of the Indium compound, Gallium compound, Tin compound and Thallium compound is 1:0.1 to 1:2. According to the present invention, the liquid for the oxide thin film may be fabricated by a sol-gel method making it capable of being implemented in mass production in a simple and low-cost manner as opposed to the conventional vacuum deposition method.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: September 3, 2013
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Hyun Jae Kim, Kyung Ho Kim, Gun Hee Kim, Tae Hoon Jeong, Hyun Soo Shin, Won Jun Park, Yun Jung Choi, Ka Young Lee
  • Publication number: 20120231607
    Abstract: A method for forming a silicon layer according to inventive concept comprises: preparing an SOI substrate; applying an etchant or vapor of the etchant to the SOI substrate; and irradiating a light to the SOI substrate.
    Type: Application
    Filed: November 29, 2011
    Publication date: September 13, 2012
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Taeyoon LEE, Ja Hoon KOO, Sang Wook LEE, Ka Young LEE
  • Publication number: 20100251936
    Abstract: A method of fabricating a liquid for an oxide thin film is provided, which includes mixing at least two kinds of dispersoids selected from the group consisting of a Zinc compound, an Indium compound, a Gallium compound, a Tin compound and a Thallium compound, with dispersion media corresponding to the selected dispersoids to form a dispersion system, and stirring and aging the dispersion system at a predetermined temperature for a predetermined time, wherein a molar ratio of the Zinc compound to each of the Indium compound, Gallium compound, Tin compound and Thallium compound is 1:0.1 to 1:2. According to the present invention, the liquid for the oxide thin film may be fabricated by a sol-gel method making it capable of being implemented in mass production in a simple and low-cost manner as opposed to the conventional vacuum deposition method.
    Type: Application
    Filed: February 14, 2008
    Publication date: October 7, 2010
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION ,
    Inventors: Hyun Jae Kim, Kyung Ho Kim, Gun Hee Kim, Tae Hoon Jeong, Hyun Soo Shin, Won Jun Park, Yun Jung Choi, Ka Young Lee