Patents by Inventor Jong Taik Lee

Jong Taik 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).

  • Patent number: 10618925
    Abstract: Provided are a tungsten precursor compound to which a substituent is bonded so as to obtain thermal stability and a method of forming a tungsten-containing film using the precursor.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: April 14, 2020
    Assignee: MICROCHEM INC.
    Inventors: Sam Keun Lee, Jong Taik Lee, Jun Young Lee, Ho Seob Kim
  • Publication number: 20180208617
    Abstract: The present invention relates to a tungsten precursor compound to which a substituent is bonded so as to obtain thermal stability and a tungsten-containing film in a mild condition at a high yield, and a process for producing the same. The present invention also provides a method for depositing tungsten-containing film.
    Type: Application
    Filed: March 16, 2016
    Publication date: July 26, 2018
    Applicant: MICROCHEM INC.
    Inventors: Sam Keun LEE, Jong Taik LEE, Jun Young LEE, Ho Seob KIM
  • Patent number: 9449734
    Abstract: The present invention relates to a conductive metal ink composition, comprising: a first metal powder having conductivity; a non-aqueous solvent; an attachment improving agent; and a polymer coating property improving agent, and a method for forming a conductive pattern by using the conductive metal ink composition, and the conductive metal ink composition can be appropriately applied to a roll printing process and a conductive pattern exhibiting more improved conductivity and excellent attachment ability with respect to a board can be formed.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 20, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Jiehyun Seong, Kyoung Su Jeon, Soo Yeon Heo, Jong Taik Lee, Ji Young Hwang, In-Seok Hwang, Seung-Heon Lee
  • Patent number: 9340684
    Abstract: An exemplary embodiment of the present invention relates to a conductive metal ink composition comprising a conductive metal powder; a non-aqueous solvent; an organo phosphate compound; and a polymer coating property improving agent, and a method for forming a conductive pattern by using the conductive metal ink composition.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: May 17, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Kyoung Su Jeon, Jiehyun Seong, Soo Yeon Heo, Ji Young Hwang, Jong Taik Lee
  • Publication number: 20130277096
    Abstract: The present invention relates to a conductive metal ink composition, comprising: a first metal powder having conductivity; a non-aqueous solvent; an attachment improving agent; and a polymer coating property improving agent, and a method for forming a conductive pattern by using the conductive metal ink composition, and the conductive metal ink composition can be appropriately applied to a roll printing process and a conductive pattern exhibiting more improved conductivity and excellent attachment ability with respect to a board can be formed.
    Type: Application
    Filed: August 26, 2011
    Publication date: October 24, 2013
    Applicant: LG Chem. Ltd.
    Inventors: Jiehyun Seong, Kyoung Su Jeon, Soo Yeon Heo, Jong Taik Lee, Ji Young Hwang, In-Seok Hwang, Seung-Heon Lee
  • Publication number: 20130264104
    Abstract: An exemplary embodiment of the present invention relates to a conductive metal ink composition comprising a conductive metal powder; a non-aqueous solvent; an organo phosphate compound; and a polymer coating property improving agent, and a method for forming a conductive pattern by using the conductive metal ink composition.
    Type: Application
    Filed: May 6, 2011
    Publication date: October 10, 2013
    Inventors: Kyung Su Jeon, Jiehyun Seong, Soo Yeon Heo, Ji Young Hwang, Jong Taik Lee
  • Patent number: 7867413
    Abstract: Disclosed is ink for ink jet printing, which comprises: metal nanoparticles comprising a surfactant attached to surfaces thereof; and a first solvent, wherein the metal nanoparticles are present in an amount of 50˜70 parts by weight based on 100 parts by weight of the ink, and the surfactant is present in an amount of 0.5˜5 parts by weight based on 100 parts by weight of the metal nanoparticles. Metal nanoparticles used in the ink and a method for preparing the metal nanoparticles are also disclosed. The method for preparing metal nanoparticles for use in ink for ink jet printing comprises a step of washing surplus surfactant with at least one solvent. By doing so, the surplus surfactant remaining on the surfaces of the metal nanoparticles can be minimized, resulting in a drop in viscosity of ink comprising the metal nanoparticles.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: January 11, 2011
    Assignee: LG Chem, Ltd.
    Inventors: Jong Taik Lee, Soo Yeon Heo, Min Seo Kim, Hyun Sik Kim, Jung Ho Park, Sang Ho Kim
  • Publication number: 20080078302
    Abstract: Disclosed is ink for ink jet printing, which comprises: metal nanoparticles comprising a surfactant attached to surfaces thereof; and a first solvent, wherein the metal nanoparticles are present in an amount of 50˜70 parts by weight based on 100 parts by weight of the ink, and the surfactant is present in an amount of 0.5˜5 parts by weight based on 100 parts by weight of the metal nanoparticles. Metal nanoparticles used in the ink and a method for preparing the metal nanoparticles are also disclosed. The method for preparing metal nanoparticles for use in ink for ink jet printing comprises a step of washing surplus surfactant with at least one solvent. By doing so, the surplus surfactant remaining on the surfaces of the metal nanoparticles can be minimized, resulting in a drop in viscosity of ink comprising the metal nanoparticles.
    Type: Application
    Filed: March 14, 2007
    Publication date: April 3, 2008
    Inventors: Jong Taik Lee, Soo Yeon Heo, Min Seo Kim, Hyun Sik Kim, Jung Ho Park, Sang Ho Kim
  • Publication number: 20070244220
    Abstract: Disclosed is a dispersion adjuvant for metal nanoparticles, which comprises an amide derivative. Metal nanoink comprising the dispersion adjuvant is also disclosed. The dispersion adjuvant helps metal nanoparticles to be dispersed in a solvent in the presence of a dispersant, inhibits metal particles from agglomerating among themselves, and increases the content of metal nanoparticles in a solvent. Additionally, interconnection lines formed by using the nanoink have an increased content of metal per unit area, and thus provide improved conductivity.
    Type: Application
    Filed: April 11, 2007
    Publication date: October 18, 2007
    Applicant: LG CHEM, LTD.
    Inventors: Sang Ho Kim, Jong Taik Lee, Min Seo Kim, Soo Yeon Heo