Patents by Inventor Jun Young YOON

Jun Young YOON 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: 20210363423
    Abstract: An etching composition for silicon nitride comprising: a phosphoric acid compound; water; and at least one of a silane compound represented by Formula 1 and a reaction product thereof, and an etching method using the same are disclosed.
    Type: Application
    Filed: April 5, 2019
    Publication date: November 25, 2021
    Inventors: Ki Wook HWANG, Sang Ran KOH, Youn Jin CHO, Jung Min CHOI, Kwen Woo HAN, Jun Young Jang, Yong Woon YOON
  • Publication number: 20210367249
    Abstract: An apparatus and a method for controlling a fuel electrode drain valve of a fuel cell system are disclosed. The apparatus includes: a hydrogen sensor that measures the concentration of hydrogen released by opening a fuel electrode drain valve, a first pressure sensor that measures the inlet pressure of the fuel electrode drain valve, a second pressure sensor that measures the outlet pressure of the fuel electrode drain valve; and a controller that controls the opening area of the fuel electrode drain valve to the maximum value when draining the condensate and controls the opening area of the fuel electrode drain valve based on the difference between the inlet pressure and the outlet pressure of the fuel electrode drain valve when purging the hydrogen.
    Type: Application
    Filed: September 14, 2020
    Publication date: November 25, 2021
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jun Young PARK, Sung Gone YOON
  • Patent number: 11149204
    Abstract: Provided is a liquid crystal alignment agent composition comprising a terminal modifier compound containing an amino group together with a polyimide containing an acid anhydride group at its terminus or a precursor polymer thereof, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display using the same.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: October 19, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seongku Kim, Jung Ho Jo, Hoonseo Park, Hee Han, Jun Young Yoon
  • Patent number: 11142697
    Abstract: The present invention relates to a liquid crystal aligning agent composition capable of securing a high imidization rate under relatively mild curing conditions, minimizing side reactions and thus having excellent stability, a method for producing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: October 12, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jung Ho Jo, Hee Han, Sung Joon Min, Hang Ah Park, Sang Mi Lee, Soon Ho Kwon, Jun Young Yoon, Hyeong Seuk Yun, Seongku Kim
  • Patent number: 11136506
    Abstract: A polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent including the same, a liquid crystal alignment film formed from the liquid crystal alignment agent, and a liquid crystal display device including the liquid crystal alignment film are provided.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 5, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Soon Ho Kwon, Jung Ho Jo, Sung Joon Min, Hang Ah Park, Jun Young Yoon
  • Patent number: 11137644
    Abstract: The present invention relates to a polymer which is excellent in terms of liquid crystal alignment property, durability, and electrical characteristics, and thus is suitable for use in a liquid crystal aligning agent, a liquid crystal aligning agent composition including the same, a liquid crystal alignment film formed from the liquid crystal aligning agent composition, and a liquid crystal display device including the liquid crystal alignment film.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: October 5, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seongku Kim, Hee Han, Jung Ho Jo, Sung Joon Min, Soon Ho Kwon, Jun Young Yoon, Hyeongseuk Yun, Hoonseo Park
  • Patent number: 11118113
    Abstract: Provided is a liquid crystal alignment agent composition comprising a terminal modifier compound containing an amino group together with a polyimide containing an acid anhydride group at its terminus or a precursor polymer thereof, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display using the same.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: September 14, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seongku Kim, Jung Ho Jo, Hoonseo Park, Hee Han, Jun Young Yoon
  • Patent number: 11078424
    Abstract: Provided is a liquid crystal aligning agent composition including a liquid crystal polymer together with a polyimide-based (co)polymer, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: August 3, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyeongseuk Yun, Jung Ho Jo, Jun Young Yoon, Hoonseo Park
  • Patent number: 11073728
    Abstract: The present invention provides a liquid crystal alignment film not only having an excellent alignment property and stability, but also having high film strength, and thus exhibiting excellent durability and a high residual image property, a method for preparing the same, and a liquid crystal display device using the same.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: July 27, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyeong Seuk Yun, Jung Ho Jo, Sung Joon Min, Hee Han, Hang Ah Park, Sang Mi Lee, Soon Ho Kwon, Jun Young Yoon
  • Publication number: 20210222069
    Abstract: The present invention relates to a liquid crystal alignment agent composition comprising degradable liquid crystal alignment polymer; and a catalyst precursor compound of a specific structure, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display using the same.
    Type: Application
    Filed: November 4, 2019
    Publication date: July 22, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Soonho KWON, Jun Young YOON, Hyeongseuk YUN, Jung Ho JO
  • Patent number: 11036089
    Abstract: The present invention provides a liquid crystal alignment film not only having an excellent alignment property and stability, but also having high film strength, and thus exhibiting excellent durability and a high residual image property, a method for preparing the same, and a liquid crystal display device using the same.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: June 15, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hyeong Seuk Yun, Jung Ho Jo, Sung Joon Min, Hee Han, Hang Ah Park, Sang Mi Lee, Soon Ho Kwon, Jun Young Yoon
  • Publication number: 20210155853
    Abstract: A liquid crystal aligning agent composition for forming a liquid crystal alignment film having improved electrical characteristics and high reliability while exhibiting excellent alignment properties and durability, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the liquid crystal alignment film.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 27, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Hang Ah PARK, Jung Ho JO, Jun Young YOON, Hyeong Seuk YUN
  • Patent number: 11008537
    Abstract: The present invention relates to a cleaning composition for a liquid crystal alignment layer, a manufacturing method of a liquid crystal alignment layer using the same, and a liquid crystal display device including the liquid crystal alignment layer manufactured by the manufacturing method. More specifically, the present invention relates to a cleaning composition for a liquid crystal alignment layer that is capable of solving a non-uniformity problem of the liquid crystal alignment layer and effectively removing an ionic byproduct on a polymer surface to increase anisotropy of the liquid crystal alignment layer, by using a cleaning composition including a specific solvent in a cleaning process after a UV alignment process, and a manufacturing method of a liquid crystal alignment layer.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: May 18, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Hee Han, Jun Young Yoon, Jung Ho Jo, Hang Ah Park, Soon Ho Kwon, Hyeong Seuk Yun
  • Publication number: 20210139780
    Abstract: The present invention relates to a polymer having excellent liquid crystal alignment and electrical properties and thus is suitable for use as a liquid crystal alignment agent, a liquid crystal alignment agent containing the same, a liquid crystal aligning film formed from the liquid crystal alignment agent, and a liquid crystal display device containing the liquid crystal aligning film.
    Type: Application
    Filed: May 14, 2018
    Publication date: May 13, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Soon Ho KWON, Jung Ho JO, Sung Joon MIN, Sang Mi LEE, Kichul KOO, Jun Young YOON, Hyeong Seuk YUN, Yoon Bin LIM, Seongku KIM
  • Publication number: 20210130694
    Abstract: A liquid crystal aligning agent composition for forming a liquid crystal alignment film that can exhibit excellent alignment and electrical characteristics and simultaneously having enhanced durability, a method for preparing a liquid crystal alignment film using the liquid crystal aligning agent composition, and a liquid crystal alignment film comprising an aligned and cured product of the liquid crystal aligning agent composition and a liquid crystal display device comprising the liquid crystal alignment film.
    Type: Application
    Filed: August 9, 2018
    Publication date: May 6, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Seongku KIM, Hee HAN, Jung Ho JO, Sung Joon MIN, Soon Ho KWON, Jun Young YOON, Hyeong Seuk YUN, Hoonseo PARK
  • Patent number: 10982147
    Abstract: The present invention relates to a liquid crystal aligning agent composition for forming a liquid crystal alignment film exhibiting excellent alignment and electrical characteristics and simultaneously having excellent film strength, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: April 20, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seongku Kim, Hee Han, Jung Ho Jo, Sung Joon Min, Sang Mi Lee, Soon Ho Kwon, Jun Young Yoon, Hyeong Seuk Yun, Hoonseo Park
  • Publication number: 20210040390
    Abstract: The present invention relates to a liquid crystal alignment composition that not only exhibits high degree of imidization and excellent film strength when manufacturing a liquid crystal alignment film, but also can realize improved alignment property and electrical properties, a method for preparing a liquid crystal alignment film using the same, a liquid crystal alignment film and a liquid crystal display using the same.
    Type: Application
    Filed: November 12, 2019
    Publication date: February 11, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jun Young YOON, Kichul KOO, Jung Ho JO, Soonho KWON, Hyeongseuk YUN, Seongku KIM, Hoonseo PARK
  • Publication number: 20210032540
    Abstract: The present invention relates to a liquid crystal alignment composition comprising first liquid crystal alignment polymer; second liquid crystal alignment polymer; and a cross-linking agent compound, a method for preparing a liquid crystal alignment film using the same, a liquid crystal alignment film and a liquid crystal display using the same.
    Type: Application
    Filed: November 12, 2019
    Publication date: February 4, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jun Young YOON, Kichul KOO, Jung Ho JO, Soonho KWON, Hyeongseuk YUN, Hoonseo PARK
  • Publication number: 20210009902
    Abstract: Provided is a liquid crystal aligning agent composition including a liquid crystal polymer together with a polyimide-based (co)polymer, a method for preparing a liquid crystal alignment film using the same, and a liquid crystal alignment film and a liquid crystal display device using the same.
    Type: Application
    Filed: January 23, 2019
    Publication date: January 14, 2021
    Inventors: Hyeongseuk YUN, Jung Ho JO, Jun Young YOON, Hoonseo PARK
  • Publication number: 20200266692
    Abstract: High force and low noise linear fine-tooth motors are described herein. Such motors can include armatures having fine teeth separated by narrow slots such that a ratio of a pitch between teeth and a pitch between permanent magnet poles is less than that of a conventional iron-core linear motor. In one embodiment, such a linear motor can include a first component having an armature including a plurality of iron cores surrounded by coil windings, and a second component having a plurality of permanent magnets with alternating polarity. The plurality of iron cores can be spaced apart from one another by an iron core pitch distance and the plurality of permanent magnets can be spaced apart from one another by a permanent magnet pole pitch distance, and a ratio of the iron core pitch to the magnetic pole pitch can be less than 1.33.
    Type: Application
    Filed: November 30, 2017
    Publication date: August 20, 2020
    Inventors: David L. TRUMPER, Jun Young YOON