Patents by Inventor Sei Jin Park

Sei Jin 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).

  • Patent number: 11795065
    Abstract: The present invention provides iron oxide magnetic particles including an iron oxide and MXn, wherein M includes one or more selected from the group consisting of Cu, Sn, Pb, Mn, Ir, Pt, Rh, Re, Ag, Au, Pd, and Os, X includes one or more selected from the group consisting of F, Cl, Br, and I, and n is an integer of 1 to 6.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: October 24, 2023
    Assignee: ZTI BIOSCIENCES CO., LTD.
    Inventors: Hyungseok Chang, Sei Jin Park, Yong-Sun Park, Ji Young Ryu, Yoon-Sik Lee
  • Patent number: 11780739
    Abstract: The present invention provides a method for preparing iron oxide magnetic particles and iron oxide magnetic particles prepared thereby, wherein the method includes (a) synthesizing a complex by reacting iron and one or more compounds selected from the group consisting of an aliphatic hydrocarbonate having 4 to 25 carbon atoms and an amine compound, (b) synthesizing an iron oxide crystal nucleus by mixing the complex with a mixture of an unsaturated aliphatic hydrocarbon-based compound having 4 to 25 carbon atoms and an ether-based compound, and (c) forming a shell by mixing the iron oxide crystal nucleus and an MXn compound with a mixture of an unsaturated aliphatic hydrocarbon-based compound having 4 to 25 carbon atoms and an ether-based compound, wherein M is a heavy atom element, X is a halogen element, and n is an integer of 1 to 6.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: October 10, 2023
    Assignee: ZTI BIOSCIENCES CO., LTD.
    Inventors: Hyungseok Chang, Sei Jin Park, Yong-Sun Park, Ji Young Ryu, Yoon-Sik Lee
  • Patent number: 11590459
    Abstract: A product includes a nanoporous membrane having a plurality of carbon nanotubes and a fill material in interstitial spaces between the carbon nanotubes for limiting or preventing fluidic transfer between opposite sides of the nanoporous membrane except through interiors of the carbon nanotubes. The longitudinal axes of the carbon nanotubes are substantially parallel, an average inner diameter of the carbon nanotubes is about 20 nanometers or less, and both ends of at least some of the carbon nanotubes are open. Moreover, the fill material is impermeable or having an average porosity that is less than the average inner diameter of the carbon nanotubes.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: February 28, 2023
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Steven F. Buchsbaum, Francesco Fornasiero, Melinda L. Jue, Eric R. Meshot, Sei Jin Park, Ngoc T. N. Bui, Chiatai Chen
  • Publication number: 20210327621
    Abstract: The present invention provides iron oxide magnetic particles including an iron oxide and MXn, wherein M includes one or more selected from the group consisting of Cu, Sn, Pb, Mn, Ir, Pt, Rh, Re, Ag, Au, Pd, and Os, X includes one or more selected from the group consisting of F, Cl, Br, and I, and n is an integer of 1 to 6.
    Type: Application
    Filed: February 26, 2021
    Publication date: October 21, 2021
    Inventors: Hyungseok CHANG, Sei Jin PARK, Yong-Sun PARK, Ji Young RYU, Yoon-Sik LEE
  • Publication number: 20210317005
    Abstract: The present invention provides a method for preparing iron oxide magnetic particles and iron oxide magnetic particles prepared thereby, wherein the method includes (a) synthesizing a complex by reacting iron and one or more compounds selected from the group consisting of an aliphatic hydrocarbonate having 4 to 25 carbon atoms and an amine compound, (b) synthesizing an iron oxide crystal nucleus by mixing the complex with a mixture of an unsaturated aliphatic hydrocarbon-based compound having 4 to 25 carbon atoms and an ether-based compound, and (c) forming a shell by mixing the iron oxide crystal nucleus and an MXn compound with a mixture of an unsaturated aliphatic hydrocarbon-based compound having 4 to 25 carbon atoms and an ether-based compound, wherein M is a heavy atom element, X is a halogen element, and n is an integer of 1 to 6.
    Type: Application
    Filed: February 26, 2021
    Publication date: October 14, 2021
    Inventors: Hyungseok CHANG, Sei Jin PARK, Yong-Sun PARK, Ji Young RYU, Yoon-Sik LEE
  • Publication number: 20200338505
    Abstract: A product includes a nanoporous membrane having a plurality of carbon nanotubes and a fill material in interstitial spaces between the carbon nanotubes for limiting or preventing fluidic transfer between opposite sides of the nanoporous membrane except through interiors of the carbon nanotubes. The longitudinal axes of the carbon nanotubes are substantially parallel, an average inner diameter of the carbon nanotubes is about 20 nanometers or less, and both ends of at least some of the carbon nanotubes are open. Moreover, the fill material is impermeable or having an average porosity that is less than the average inner diameter of the carbon nanotubes.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 29, 2020
    Inventors: Steven F. Buchsbaum, Francesco Fornasiero, Melinda L. Jue, Eric R. Meshot, Sei Jin Park, Ngoc T. N. Bui, Chiatai Chen
  • Publication number: 20160023904
    Abstract: The present invention generally relates to articles comprising microstructures and methods for forming microstructures. The microstructures may be mechanically coupled to impart complex three dimensional shapes. For example, one or more microstructures may be grown on a substrate at different average growth rates, resulting in curved microstructures.
    Type: Application
    Filed: July 28, 2014
    Publication date: January 28, 2016
    Applicants: Massachusetts Institute of Technology, University of Michigan, The Board of Regents Acting For and On Behalf of the C/O Technology Man
    Inventors: Anastasios John Hart, Sei Jin Park, Sameh Hani Tawfick, Michael FI De Volder
  • Patent number: 8308664
    Abstract: A handheld device for canceling unintentional muscle movement. The device includes a base comprising a handgrip for a user to hold, a gripping element linked to the base for releasably connecting the handheld device to an object, a sensor that detects movement of the base, a controller linked to the sensor, and at least one actuator that operates under control of the controller to cause movement of the gripping element in a direction that at least partially counteracts the detected movement of the base.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: November 13, 2012
    Assignee: The Regents of the University of Michigan
    Inventors: Anupam Pathak, Jonathan Luntz, Diann Brei, Tian Shen, Sarah Napier, Rajiv Ghosh, Sei Jin Park
  • Publication number: 20100228362
    Abstract: A handheld device for canceling unintentional muscle movement. The device includes a base comprising a handgrip for a user to hold, a gripping element linked to the base for releasably connecting the handheld device to an object, a sensor that detects movement of the base, a controller linked to the sensor, and at least one actuator that operates under control of the controller to cause movement of the gripping element in a direction that at least partially counteracts the detected movement of the base.
    Type: Application
    Filed: March 3, 2010
    Publication date: September 9, 2010
    Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Anupam Pathak, Jonathan Luntz, Diann Brei, Tian Shen, Sarah Napier, Rajiv Ghosh, Sei Jin Park
  • Publication number: 20090272400
    Abstract: Disclosed is a cosmetics container for containing cosmetics. The cosmetics container has a casing, a sponge, and an opening/closing member. The casing contains liquid or powdered cosmetics, and is formed with a discharge port for discharging the cosmetics outside. The sponge is assembled on an outside of the casing on which the discharge port is formed, and the cosmetics permeates to the sponge so that the cosmetics is provided outside thereof. The opening/closing member is disposed on the casing at the discharge port so as to close the discharge port, and is deformed by a deformation of the sponge due to an outside force applied to the sponge so that the discharge port is open. When using the cosmetics container that the sponge is assembled with the casing for containing cosmetics, the amount of the cosmetics discharged through the sponge can be controlled easily since the powder is supplied to the sponge when the sponge is contacted with and pressed by the skin.
    Type: Application
    Filed: January 10, 2007
    Publication date: November 5, 2009
    Inventors: Sei Jin Park, Young Hee Park