Patents by Inventor Yun Tack Lee

Yun Tack 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).

  • METHODS FOR PRODUCTION OF SILVER NANOSTRUCTURES
    Publication number: 20210339316
    Abstract: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersed, and scale of synthesis.
    Type: Application
    Filed: March 17, 2021
    Publication date: November 4, 2021
    Applicant: University of Washington
    Inventors: Younan Xia, Sang-Hyuk Im, Yugang Sun, Yun Tack Lee, Benjamin Wiley
  • Methods for production of silver nanostructures
    Patent number: 10981231
    Abstract: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: April 20, 2021
    Assignee: University of Washington
    Inventors: Younan Xia, Sang-Hyuk Im, Yugang Sun, Yun Tack Lee, Benjamin Wiley
  • METHODS FOR PRODUCTION OF SILVER NANOSTRUCTURES
    Publication number: 20180311741
    Abstract: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis.
    Type: Application
    Filed: July 10, 2018
    Publication date: November 1, 2018
    Applicant: University of Washington
    Inventors: Younan Xia, Sang-Hyuk Im, Yugang Sun, Yun Tack Lee, Benjamin Wiley
  • METHODS FOR PRODUCTION OF SILVER NANOSTRUCTURES
    Publication number: 20160271701
    Abstract: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis.
    Type: Application
    Filed: June 2, 2016
    Publication date: September 22, 2016
    Applicant: University of Washington
    Inventors: Younan Xia, Sang-Hyuk Im, Yugang Sun, Yun Tack Lee, Benjamin Wiley
  • Methods for production of silver nanostructures
    Patent number: 9388480
    Abstract: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: July 12, 2016
    Assignee: University of Washington
    Inventors: Younan Xia, Sang-Hyuk Im, Yugang Sun, Yun Tack Lee, Benjamin Wiley
  • METHODS FOR PRODUCTION OF SILVER NANOSTRUCTURES
    Publication number: 20150336174
    Abstract: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis.
    Type: Application
    Filed: June 30, 2015
    Publication date: November 26, 2015
    Applicant: University of Washington
    Inventors: Younan Xia, Sang-Hyuk Im, Yugang Sun, Yun Tack Lee, Benjamin Wiley
  • Methods for production of silver nanostructures
    Patent number: 9109270
    Abstract: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: August 18, 2015
    Assignee: University of Washington
    Inventors: Younan Xia, Sang-Hyuk Im, Yugang Sun, Yun Tack Lee, Benjamin Wiley
  • Carbon Nanotubes and Method for Preparing the Same
    Publication number: 20150093576
    Abstract: Disclosed herein are carbon nanotubes and a method of manufacturing the same. The carbon nanotubes include at least one element selected from aluminum (Al), magnesium (Mg) and silicon (Si) and at least one metal selected from cobalt (Co), nickel (Ni), iron (Fe), manganese (Mn) and molybdenum (Mo), and have an intensity ratio (ID/IG) of about 1.10 or less as measured by Raman spectroscopy and a carbon purity of about 98% or higher. The carbon nanotubes prepared by the method can be controlled in terms of carbon purity and preparation yield while eliminating the need for post-refining treatment.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: Seung Yong BAE, Yun Tack LEE, Byeong Yeol KIM, Joong In KIM, Sung Hee AHN
  • Thermoplastic resin composition with anti-dripping properties
    Patent number: 8927642
    Abstract: A thermoplastic resin composition includes (A) thermoplastic resin in an amount of about 100 parts by weight, (B) flame retardant in an amount of about 1 to about 10 parts by weight, and (C) carbon nanotubes in an amount of about 0.005 to about 0.05 parts by weight. The thermoplastic resin composition of the present invention can have excellent anti-dripping properties.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: January 6, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Yun Tack Lee, Sung Hee Ahn, Seon Ae Lee, Byeong Yeol Kim, Won Jun Choi, Seung Yong Bae
  • Thermoplastic Resin Composition with Anti-Dripping Properties
    Publication number: 20140187702
    Abstract: A thermoplastic resin composition includes (A) thermoplastic resin in an amount of about 100 parts by weight, (B) flame retardant in an amount of about 1 to about 10 parts by weight, and (C) carbon nanotubes in an amount of about 0.005 to about 0.05 parts by weight. The thermoplastic resin composition of the present invention can have excellent anti-dripping properties.
    Type: Application
    Filed: July 3, 2013
    Publication date: July 3, 2014
    Inventors: Yun Tack Lee, Sung Hee Ahn, Seon Ae Lee, Byeong Yeol Kim, Won Jun Choi, Seung Yong Bae
  • METHODS FOR PRODUCTION OF SILVER NANOSTRUCTURES
    Publication number: 20120125156
    Abstract: Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 24, 2012
    Applicant: THE UNIVERSITY OF WASHINGTON
    Inventors: Younan Xia, Sang-Hyuk Im, Yun Tack Lee, Yugang Sun, Benjamin Wiley
  • Supported catalyst with solid sphere structure, method for preparing the same and carbon nanotubes prepared using the same
    Patent number: 8088707
    Abstract: A supported catalyst with a solid sphere structure of the present invention includes an oxide supporting body and a metal such as Ni, Co, Fe, or a combination thereof distributed on the surface and inside of the supporting body. The supported catalyst with a solid sphere structure can maintain a spherical shape during heat treatment and can be used with a floating bed reactor due to the solid sphere structure thereof.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: January 3, 2012
    Assignee: Cheil Industries Inc.
    Inventors: Byeong Yeol Kim, Yun Tack Lee, Seung Yong Bae, Young Sil Lee
  • Supported Catalysts for Synthesizing Carbon Nanotubes, Method for Preparing the Same, and Carbon Nanotubes Made Using the Same
    Publication number: 20110212016
    Abstract: The present invention provides a supported catalyst for synthesizing carbon nanotubes. The supported catalyst includes a metal catalyst supported on a supporting body and a water-soluble polymer, and has an average diameter of about 30 to about 100 ?m.
    Type: Application
    Filed: April 21, 2011
    Publication date: September 1, 2011
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Yun Tack LEE, Byeong Yeol KIM, Seung Yong BAE, Young Kyu CHANG, Young Sil LEE
  • Supported Catalyst for Synthesizing Carbon Nanotubes, Method for Preparing the Same and Carbon Nanotubes Made Using the Same
    Publication number: 20110195013
    Abstract: The present invention provides a supported catalyst for synthesizing carbon nanotubes. The supported catalyst includes a metal catalyst supported on a supporting body, and the supported catalyst has a surface area of about 15 to about 100 m2/g. The supported catalyst for synthesizing carbon nanotubes according to the present invention can lower production costs by increasing surface area of a catalytic metal to thereby allow production of a large amount of carbon nanotubes using a small amount of the catalyst.
    Type: Application
    Filed: April 15, 2011
    Publication date: August 11, 2011
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Seung Yong BAE, Byeong Yeol KIM, Yun Tack LEE, Young Kyu CHANG, Young Sil LEE
  • Supported Catalyst with Solid Sphere Structure, Method for Preparing the Same and Carbon Nanotubes Prepared Using the Same
    Publication number: 20100158788
    Abstract: A supported catalyst with a solid sphere structure of the present invention includes an oxide supporting body and a metal such as Ni, Co, Fe, or a combination thereof distributed on the surface and inside of the supporting body. The supported catalyst with a solid sphere structure can maintain a spherical shape during heat treatment and can be used with a floating bed reactor due to the solid sphere structure thereof.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Byeong Yeol KIM, Yun Tack LEE, Seung Yong BAE, Young Sil LEE