Patents by Inventor Yeunwoo CHO

Yeunwoo CHO 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: 11369961
    Abstract: The present invention provides an apparatus and method for washing and concentrating microparticles encapsulated in microscale droplets using an acoustic radiation force. The apparatus includes: a piezoelectric substrate; a slanted finger interdigital transducer (SIDT) electrode deposited on the piezoelectric substrate and configured to generate surface acoustic waves under an AC signal applied thereto; and a microfluidic chip which is adhered to the piezoelectric substrate with being spaced apart from the SIDT electrode, has a microscale channel section formed therein, in which a single continuous phase and a plurality of dispersed phases are injected, respectively, and includes a plurality of inlet ports into which continuous and dispersed phases are injected, and a discharge port from which a plurality of droplets composed of the continuous and dispersed phases and generated by the intersection thereof are discharged.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: June 28, 2022
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyung-Jin Sung, Jinsoo Park, Ghulam Destgeer, Yeunwoo Cho, Hyoungsoo Kim
  • Publication number: 20200206738
    Abstract: The present invention provides an apparatus and method for washing and concentrating microparticles encapsulated in microscale droplets using an acoustic radiation force. The apparatus includes: a piezoelectric substrate; a slanted finger interdigital transducer (SIDT) electrode deposited on the piezoelectric substrate and configured to generate surface acoustic waves under an AC signal applied thereto; and a microfluidic chip which is adhered to the piezoelectric substrate with being spaced apart from the SIDT electrode, has a microscale channel section formed therein, in which a single continuous phase and a plurality of dispersed phases are injected, respectively, and includes a plurality of inlet ports into which continuous and dispersed phases are injected, and a discharge port from which a plurality of droplets composed of the continuous and dispersed phases and generated by the intersection thereof are discharged.
    Type: Application
    Filed: December 6, 2019
    Publication date: July 2, 2020
    Inventors: Hyung-Jin SUNG, Jinsoo PARK, Ghulam DESTGEER, Yeunwoo CHO, Hyoungsoo KIM
  • Patent number: 9371816
    Abstract: A hybrid power system including one or more base members configured to be installed at the seabed, one or more connecting members each coupled to a corresponding base member so as to be slidable in a vertical direction which is perpendicular to a top surface of the corresponding base member, a buoy configured to move in the vertical direction by receiving at least one of the wave force and current force, the buoy coupled to the top of the connecting member to move in conjunction with the one or more connecting members, and a power generation unit configured to generate electricity using vertical movement of the connecting members, the power generation unit installed in at least one of the one or more base members.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: June 21, 2016
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yeunwoo Cho, Seungyong Jeong, Gibbeum Lee
  • Publication number: 20150204303
    Abstract: A hybrid power system including one or more base members configured to be installed at the seabed, one or more connecting members each coupled to a corresponding base member so as to be slidable in a vertical direction which is perpendicular to a top surface of the corresponding base member, a buoy configured to move in the vertical direction by receiving at least one of the wave force and current force, the buoy coupled to the top of the connecting member to move in conjunction with the one or more connecting members, and a power generation unit configured to generate electricity using vertical movement of the connecting members, the power generation unit installed in at least one of the one or more base members.
    Type: Application
    Filed: October 29, 2014
    Publication date: July 23, 2015
    Inventors: Yeunwoo CHO, Seungyong JEONG, Gibbeum LEE