Patents by Inventor Yong Whan CHOI

Yong Whan 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: 11796403
    Abstract: Provided is a highly sensitive sensor comprising a cracked transparent conductive thin film. The highly sensitive sensor relates to a sensor which is acquired by means of forming a fine crack in a transparent conductive thin film formed on a substrate and is for measuring external tension and pressure by means of measuring the change of electrical resistance due to changes, shorting or opening in a fine interconnection structure formed by the fine crack. Such highly sensitive transparent conductive crack sensor can be applied to high-precision measurement or an artificial skin, can also be utilized as a positioning detecting sensor by means of pixelating the sensor, and can be utilized in fields of precise measurements, biometric devices used on the human skin and the like, human motion measurement sensors, display panel sensors and the like.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: October 24, 2023
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Taemin Lee, Yong Whan Choi, Gunhee Lee, Man Soo Choi
  • Publication number: 20200240860
    Abstract: Provided is a highly sensitive sensor comprising a cracked transparent conductive thin film. The highly sensitive sensor relates to a sensor which is acquired by means of forming a fine crack in a transparent conductive thin film formed on a substrate and is for measuring external tension and pressure by means of measuring the change of electrical resistance due to changes, shorting or opening in a fine interconnection structure formed by the fine crack. Such highly sensitive transparent conductive crack sensor can be applied to high-precision measurement or an artificial skin, can also be utilized as a positioning detecting sensor by means of pixelating the sensor, and can be utilized in fields of precise measurements, biometric devices used on the human skin and the like, human motion measurement sensors, display panel sensors and the like.
    Type: Application
    Filed: May 24, 2017
    Publication date: July 30, 2020
    Inventors: Taemin Lee, Yong Whan Choi, Gunhee Lee, Man Soo Choi
  • Publication number: 20200240859
    Abstract: Provided is a high-sensitivity sensor having a conductive thin film containing linearly induced cracks. The high-sensitivity sensor relates to a sensor, obtained by forming linearly induced microcracks on a conductive thin film formed on a support, for measuring external tensile and pressure by measuring a change in the electrical resistance due to modification, short-circuiting, or openings in micro-joining structures formed by the microcracks. The high-sensitivity conductive crack sensor may be applied to high-precision measurements or artificial skins, and may be utilized as a positioning detection sensor by pixelating the sensor. Thus, the high-sensitivity sensor may be effectively used in the fields of precise measurements, bio-measurement devices through human skin, human motion measuring sensors, display panel sensors, etc.
    Type: Application
    Filed: November 28, 2016
    Publication date: July 30, 2020
    Inventors: Yong Whan CHOI, Taemin LEE, Gunhee LEE, Man Soo CHOI, Daeshik KANG, Pikhitsa PETRO
  • Patent number: 9927311
    Abstract: A high-sensitivity sensor containing cracks is provided. The high-sensitivity sensor is obtained by forming microcracks on a conductive thin film, which is formed on top of a support, wherein the microcracks form a micro joining structure in which the microcracks are electrically changed, short-circuited or open, thereby converting external stimuli into electric signals by generating a change in a resistance value. The high-sensitivity sensor can be useful in a displacement sensor, a pressure sensor, a vibration sensor, artificial skin, a voice recognition system, and the like.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: March 27, 2018
    Assignees: Global Frontier Center-Multiscale Energy Systems, SNU R&DB Foundation, Research & Business Foundation Sungkyunkwan Univ.
    Inventors: Daeshik Kang, Yong Whan Choi, Chanseok Lee, Kahp-Yang Suh, Tae-il Kim, Man Soo Choi
  • Publication number: 20160123820
    Abstract: A high-sensitivity sensor containing cracks is provided. The high-sensitivity sensor is obtained by forming microcracks on a conductive thin film, which is formed on top of a support, wherein the microcracks form a micro joining structure in which the microcracks are electrically changed, short-circuited or open, thereby converting external stimuli into electric signals by generating a change in a resistance value. The high-sensitivity sensor can be useful in a displacement sensor, a pressure sensor, a vibration sensor, artificial skin, a voice recognition system, and the like.
    Type: Application
    Filed: December 3, 2014
    Publication date: May 5, 2016
    Inventors: Daeshik KANG, Yong Whan CHOI, Chanseok LEE, Kahp-Yang SUH, Tae-il KIM, Man Soo CHOI