Patents by Inventor In-young Song

In-young Song 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).

  • Publication number: 20250253309
    Abstract: An electrode for a secondary battery including a current collector, and at least one electrode material mixture layer on a surface of the current collector, the electrode material mixture layer including a negative electrode active material, a conductive agent, and a binder wherein, the electrode has a property such that in a regression curve obtained by regression analysis of shear strength data according to a cutting depth which are measured while obliquely cutting the electrode material mixture layer from a surface thereof until reaching the current collector using a surface and interfacial cutting analysis system (SAICAS), a ratio of a maximum value (?max) to a minimum value (?min) of shear strength is 1.7 or less.
    Type: Application
    Filed: April 22, 2025
    Publication date: August 7, 2025
    Inventors: In Young SONG, Joo Yul Baek, Jeong Kyu Lee, Sung Joon Oh, Jong Chan Lee
  • Patent number: 12025822
    Abstract: The present disclosure relates to an optical laminate or a reddening-resistant layer. The present disclosure can provide an optical laminate that does not cause a so-called reddening phenomenon even when driven or maintained under extremely harsh conditions (e.g., very high temperature conditions), or a reddening-resistant layer applied thereto.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: July 2, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jin Seok Byun, Yeong Rae Chang, Na Young Shin, In Young Song, Kyun Il Rah
  • Patent number: 11552288
    Abstract: A method for quantitatively analyzing cohesive failure of an electrode analyzes cohesive failure of an electrode and includes preparing an electrode in which an electrode material mixture layer including an electrode active material, a conductive agent, and a binder is formed on a current collector, measuring shear strength (?) data according to a cutting depth while cutting the electrode material mixture layer from a surface thereof until reaching the current collector using a surface and interfacial cutting analysis system (SAICAS), obtaining a regression curve of shear strength according to the cutting depth from the shear strength (?) data, and determining a cutting depth, at which the shear strength is minimum in the regression curve, as a location of cohesive failure.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: January 10, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: In Young Song, Joo Yul Baek, Jeong Kyu Lee, Sung Joon Oh, Jong Chan Lee
  • Patent number: 11535957
    Abstract: The present invention relates to a method for producing a polyacrylonitrile-based fiber, wherein the method polymerizes a monomer mixture including an acrylonitrile-based monomer, a carboxylic acid-based comonomer, and an acrylate-based comonomer, wherein the acrylate-based comonomer includes the steps of producing a polyacrylonitrile-based copolymer so as to be included in an amount of 4 to 20 parts by weight based on 100 parts by weight of the monomer mixture, fiberizing the polyacrylonitrile-based copolymer, oxidizing and stabilizing the fiberized polyacrylonitrile-based copolymer, which may control the oxidation stabilization reaction, particularly the cyclization reaction. Accordingly, the energy consumption of the oxidation stabilization reaction may be reduced, economical efficiency of the production of polyacrylonitrile-based fiber may be obtained, and the physical and mechanical properties of the carbon fiber may be improved.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: December 27, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Jeong Kyu Lee, Chang Hun Kim, In Young Song, Jeong Hun Cho, Jong Soo Do, Sung Joon Oh, Joon Hee Cho
  • Publication number: 20220155508
    Abstract: The present disclosure relates to an optical laminate or a reddening-resistant layer. The present disclosure can provide an optical laminate that does not cause a so-called reddening phenomenon even when driven or maintained under extremely harsh conditions (e.g., very high temperature conditions), or a reddening-resistant layer applied thereto.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 19, 2022
    Inventors: Jin Seok BYUN, Yeong Rae CHANG, Na Young SHIN, In Young SONG, Kyun Il RAH
  • Patent number: 10983252
    Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: April 20, 2021
    Assignee: LG CHEM, LTD.
    Inventors: In Young Song, Jin Seok Byun, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang, Sung Joon Oh
  • Patent number: 10962686
    Abstract: The present invention relates to an antireflection film being capable of realizing high scratch resistance and antifouling property while simultaneously having low reflectivity and high light transmittance, and further being capable of enhancing screen sharpness of a display device.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 30, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jin Seok Byun, Jae Young Kim, In Young Song, Yeong Rae Chang, Yun U Shin
  • Publication number: 20210057719
    Abstract: An electrode for a secondary battery including a current collector, and at least one electrode material mixture layer on a surface of the current collector, the electrode material mixture layer including a negative electrode active material, a conductive agent, and a binder wherein, the electrode has a property such that in a regression curve obtained by regression analysis of shear strength data according to a cutting depth which are measured while obliquely cutting the electrode material mixture layer from a surface thereof until reaching the current collector using a surface and interfacial cutting analysis system (SAICAS), a ratio of a maximum value (?max) to a minimum value (?min) of shear strength is 1.7 or less.
    Type: Application
    Filed: August 18, 2020
    Publication date: February 25, 2021
    Applicant: LG CHEM, LTD.
    Inventors: In Young SONG, Joo Yul BAEK, Jeong Kyu LEE, Sung Joon OH, Jong Chan LEE
  • Publication number: 20210057728
    Abstract: A method for quantitatively analyzing cohesive failure of an electrode analyzes cohesive failure of an electrode and includes preparing an electrode in which an electrode material mixture layer including an electrode active material, a conductive agent, and a binder is formed on a current collector, measuring shear strength (?) data according to a cutting depth while cutting the electrode material mixture layer from a surface thereof until reaching the current collector using a surface and interfacial cutting analysis system (SAICAS), obtaining a regression curve of shear strength according to the cutting depth from the shear strength (?) data, and determining a cutting depth, at which the shear strength is minimum in the regression curve, as a location of cohesive failure.
    Type: Application
    Filed: August 18, 2020
    Publication date: February 25, 2021
    Applicant: LG CHEM, LTD.
    Inventors: In Young SONG, Joo Yul BAEK, Jeong Kyu LEE, Sung Joon OH, Jong Chan LEE
  • Patent number: 10858465
    Abstract: The present invention relates to an ethylene/alpha-olefin copolymer and, more particularly, to an ethylene/alpha-olefin copolymer that exhibits excellent environmental stress crack resistance by appropriately controlling the ratio of crystal structure domain and amorphous domain, and the like. The ethylene/alpha-olefin copolymer comprises an ethylene repeating unit and an alpha-olefin repeating unit, and has a crystal structure including a crystalline domain containing lamellar crystals and an amorphous domain containing a tie molecule that mediates bonding between the lamellar crystals. The lamellar crystal thickness (dc) of the ethylene/alpha-olefin copolymer as calculated from the result of Small Angle X-ray Scattering (SAXS) analysis is between 12.0 and 16.0 nm, the amorphous domain thickness (da) is between 4.0 and 5.3 nm, and the thickness ratio da/dc is between 0.3 and 0.4.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: December 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jeong Kyu Lee, Pum Suk Park, In Young Song, Sung Joon Oh, Yi Young Choi, Soon Ho Sun
  • Patent number: 10802178
    Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: October 13, 2020
    Assignee: LG CHEM, LTD.
    Inventors: In Young Song, Jin Seok Byun, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang, Sung Joon Oh
  • Patent number: 10768342
    Abstract: An antireflection film including a low reflective index layer and a hard coating layer, the low reflective index layer including: a binder resin including a crosslinked polymer of a photopolymerizable compound and polysilsesquioxane having at least one reactive functional group substituted thereon; and inorganic fine particles dispersed in the binder resin, wherein a ratio of internal haze (Hi) to total haze (Ha) is 97% or less and a variation in color coordinate value (b*) before and after alkaline treatment is 0.7 or less.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: September 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Boo Kyung Kim, Jin Seok Byun, In Young Song, Yeong Rae Chang, Seok Hoon Jang
  • Patent number: 10725210
    Abstract: An antireflection film including a low reflective index layer and a hard coating layer, the low reflective index layer including: a binder resin including a crosslinked polymer of a photopolymerizable compound and polysilsesquioxane having at least one reactive functional group substituted thereon; and inorganic fine particles dispersed in the binder resin, wherein a ratio of internal haze (Hi) to total haze (Ha) is 97% or less and a variation in color coordinate value (b*) before and after alkaline treatment is 0.7 or less.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: July 28, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Boo Kyung Kim, Jin Seok Byun, In Young Song, Yeong Rae Chang, Seok Hoon Jang
  • Patent number: 10703897
    Abstract: The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: July 7, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jeong Kyu Lee, Sung Joon Oh, Yeon Joo Kang, Jung Keun Kim, In Young Song, Sung Soo Yoon
  • Patent number: 10696960
    Abstract: A fusion protein comprising factor VII (FVII) and transferrin according to the present invention has an improved specific activity of FVII compared to existing FVII fusion proteins comprising other fusion partners than transferrin, and thus can be effectively used in a therapy using FVII.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: June 30, 2020
    Assignee: TiumBio Co., Ltd.
    Inventors: In-Young Song, Hun-Taek Kim, Bong-Yong Lee, Mahn-Hoon Park, Ho-Soon Lee, Yun Jung Lim, Ji-Hye Lee, Seo Yeon Son, Min-Sun Kim
  • Publication number: 20200149196
    Abstract: The present invention relates to a method for producing a polyacrylonitrile-based fiber, wherein the method polymerizes a monomer mixture including an acrylonitrile-based monomer, a carboxylic acid-based comonomer, and an acrylate-based comonomer, wherein the acrylate-based comonomer includes the steps of producing a polyacrylonitrile-based copolymer so as to be included in an amount of 4 to 20 parts by weight based on 100 parts by weight of the monomer mixture, fiberizing the polyacrylonitrile-based copolymer, oxidizing and stabilizing the fiberized polyacrylonitrile-based copolymer, which may control the oxidation stabilization reaction, particularly the cyclization reaction. Accordingly, the energy consumption of the oxidation stabilization reaction may be reduced, economical efficiency of the production of polyacrylonitrile-based fiber may be obtained, and the physical and mechanical properties of the carbon fiber may be improved.
    Type: Application
    Filed: November 22, 2017
    Publication date: May 14, 2020
    Inventors: Jeong Kyu LEE, Chang Hun KIM, In Young SONG, Jeong Hun CHO, Jong Soo DO, Sung Joon OH, Joon Hee CHO
  • Patent number: 10377894
    Abstract: The present application relates to a block copolymer and its use. The present application can provides a block copolymer that has an excellent self assembling property or phase separation property and therefore can be used in various applications and its use.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: August 13, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Jeong Kyu Lee, Je Gwon Lee, In Young Song, Sung Joon Oh, Yeon Joo Kang, Sung Soo Yoon, Jung Keun Kim
  • Publication number: 20190211122
    Abstract: The present invention relates to an ethylene/alpha-olefin copolymer and, more particularly, to an ethylene/alpha-olefin copolymer that exhibits excellent environmental stress crack resistance by appropriately controlling the ratio of crystal structure domain and amorphous domain, and the like. The ethylene/alpha-olefin copolymer comprises an ethylene repeating unit and an alpha-olefin repeating unit, and has a crystal structure including a crystalline domain containing lamellar crystals and an amorphous domain containing a tie molecule that mediates bonding between the lamellar crystals. The lamellar crystal thickness (dc) of the ethylene/alpha-olefin copolymer as calculated from the result of Small Angle X-ray Scattering (SAXS) analysis is between 12.0 and 16.0 nm, the amorphous domain thickness (da) is between 4.0 and 5.3 nm, and the thickness ratio da/dc is between 0.3 and 0.4.
    Type: Application
    Filed: October 25, 2017
    Publication date: July 11, 2019
    Inventors: Jeong Kyu LEE, Pum Suk PARK, In Young SONG, Sung Joon OH, Yi Young CHOI, Soon Ho SUN
  • Publication number: 20190154882
    Abstract: The present invention relates to an antireflection film being capable of realizing high scratch resistance and antifouling property while simultaneously having low reflectivity and high light transmittance, and further being capable of enhancing screen sharpness of a display device.
    Type: Application
    Filed: September 27, 2017
    Publication date: May 23, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Jin Seok BYUN, Jae Young KIM, In Young SONG, Yeong Rae CHANG, Yun U SHIN
  • Publication number: 20190137658
    Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.
    Type: Application
    Filed: January 3, 2019
    Publication date: May 9, 2019
    Applicant: LG CHEM, LTD.
    Inventors: In Young SONG, Jin Seok BYUN, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG, Sung Joon OH