Patents by Inventor Youngsuk SHIM

Youngsuk SHIM 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).

  • Micro-separator having stationary phase with three dimensional nano-structure and method for manufacturing the same
    Patent number: 12055528
    Abstract: A disclosed micro-separator for gas chromatography includes a base substrate having a trench, a channel column disposed in the trench, and a cover member combined with the base substrate and covering the channel column. The channel column includes a stationary phase having pores ordered and three-dimensionally connected to each other.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: August 6, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Seokwoo Jeon, Youngsuk Shim, Donghwi Cho, Jade Nadine Ang
  • Stretchable transparency-adjusting film having an orientated heterogeneous interface, method for manufacturing the same and smart window having stretchable transparency-adjusting film
    Patent number: 12050314
    Abstract: A stretchable transparency-adjusting film includes an inner elastic part having a three-dimensional network shape and including a first elastomer, an inorganic thin film surrounding the inner elastic part, and an outer elastic part surrounding the inorganic thin film and including a second elastomer. A scattering unit defined by the inner elastic part, the inorganic thin film and the outer elastic part in a cross-section is orientated in an inclined direction to a vertical direction and a horizontal direction.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: July 30, 2024
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Seokwoo Jeon, Donghwi Cho, Sanghyeon Nam, Youngsuk Shim
  • Light-activated gas sensor based on 3D nanostructure operable at low temperature with high performance and method for manufacturing the same
    Patent number: 11906457
    Abstract: A gas sensor includes a first electrode disposed on a substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, and a sensitive member disposed on the substrate. The sensitive member contacts first and second electrodes and has a porous structure from a three-dimensional (3D) arrangement of shells including a gas-sensitive material. A thickness of the sensitive member is 5 ?m to 10 ?m, and a thickness of the shells is 10 nm to 40 nm.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 20, 2024
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seokwoo Jeon, Donghwi Cho, Youngsuk Shim
  • MICRO-SEPARATOR HAVING STATIONARY PHASE WITH THREE-DIMENSIONAL NANO-STRUCTURE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20220074899
    Abstract: A disclosed micro-separator for gas chromatography includes a base substrate having a trench, a channel column disposed in the trench, and a cover member combined with the base substrate and covering the channel column. The channel column includes a stationary phase having pores ordered and three-dimensionally connected to each other.
    Type: Application
    Filed: October 2, 2019
    Publication date: March 10, 2022
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Seokwoo Jeon, Youngsuk Shim, Donghwi Cho, Jade Nadine Ang
  • LIGHT-ACTIVATED GAS SENSOR BASED ON 3D NANOSTRUCTURE OPERABLE AT LOW TEMPERATURE WITH HIGH PERFORMANCE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20220057353
    Abstract: A gas sensor includes a first electrode disposed on a substrate, a second electrode disposed on the substrate and spaced apart from the first electrode, and a sensitive member disposed on the substrate. The sensitive member contacts first and second electrodes and has a porous structure from a three-dimensional (3D) arrangement of shells including a gas-sensitive material. A thickness of the sensitive member is 5 ?m to 10 ?m, and a thickness of the shells is 10 nm to 40 nm.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 24, 2022
    Inventors: Seokwoo Jeon, Donghwi Cho, Youngsuk Shim
  • STRETCHABLE TRANSPARENCY-ADJUSTING FILM HAVING AN ORIENTATED HETEROGENEOUS INTERFACE, METHOD FOR MANUFACTURING THE SAME AND SMART WINDOW HAVING STRETCHABLE TRANSPARENCY-ADJUSTING FILM
    Publication number: 20210389585
    Abstract: A stretchable transparency-adjusting film includes an inner elastic part having a three-dimensional network shape and including a first elastomer, an inorganic thin film surrounding the inner elastic part, and an outer elastic part surrounding the inorganic thin film and including a second elastomer. A scattering unit defined by the inner elastic part, the inorganic thin film and the outer elastic part in a cross-section is orientated in an inclined direction to a vertical direction and a horizontal direction.
    Type: Application
    Filed: June 10, 2021
    Publication date: December 16, 2021
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Seokwoo JEON, Donghwi CHO, Sanghyeon NAM, Youngsuk SHIM