Patents by Inventor Il-hwan Choi

Il-hwan Choi 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: 20240150521
    Abstract: A polycarbonate resin including a unit of Chemical Formula 1, a method for preparing the same, a polycarbonate resin composition including the same, and a molded article including the polycarbonate resin composition are described: wherein all the variables are described herein.
    Type: Application
    Filed: February 8, 2023
    Publication date: May 9, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Hye Jin Yim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Min Suk Jung
  • Patent number: 11976386
    Abstract: A method of preparing a carbon fiber including: preparing a precursor fiber for preparing a carbon fiber; and stabilizing the precursor fiber. The stabilization of the precursor fiber includes a first stabilization phase, a second stabilization phase, a third stabilization phase, and a fourth stabilization phase, which are set at four different temperatures between a temperature at which heat starts to be generated from the stabilization reaction of the precursor fiber and a temperature at which the generation of heat is maximized. Ozone gas is input while at least one phase of the third stabilization phase and the fourth stabilization phase is carried out.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 7, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jae Gil Choi, Ji Hye Shin, Joon Hee Cho, Su Jin Kim, Ki Hwan Kim, Il Ha Lee, Myung Su Jang
  • Publication number: 20240141100
    Abstract: A resin including a unit represented by Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition is described: wherein all the variables are described herein.
    Type: Application
    Filed: May 16, 2022
    Publication date: May 2, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Min Suk Jung, Kyeongmun Kim, Jaesoon Bae, Jonghwa Baek, Hyeonah Shin, Kyeongmin Kim, Bora Shin, Hye Jin Yim, Il Hwan Choi
  • Patent number: 11926702
    Abstract: The present disclosure relates to a polyamide block copolymer and a polyamide film including the same. The polyamide block copolymer according to the present disclosure makes it possible to provide a polyamide film exhibiting excellent mechanical properties while being colorless and transparent.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: March 12, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Bi Oh Ryu, Soonyong Park, Youngseok Park, Kwanyeol Paek, Young Ji Tae, Il Hwan Choi
  • Publication number: 20240043610
    Abstract: A resin, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition are disclosed in herein. In some embodiments, a resin includes a unit of Chemical Formula 1 and a unit of Chemical Formula 2: wherein, in Chemical Formulae 1 and 2, Ar1, Ar2, R1, r1, X1 to X4, X9, X10, Z1, Z2, Z5, La, La?, a, b, p, t, m, n, L11, l11, X11 to X16, Z11 to Z13, Lb, Lb?, a?, b?, p?, C?, m? and n? are defined herein.
    Type: Application
    Filed: September 2, 2022
    Publication date: February 8, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Min Suk Jung, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim
  • Publication number: 20230407005
    Abstract: A resin, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition are disclosed herein. In some embodiments, the resin includes a unit of Chemical Formula 1 and a unit of Chemical Formula 2 wherein, in Chemical Formulae 1 and 2, Ar1, Ar2, R1 to R3, r1 to r3, L1, L2, X1 to X10, X?9, X?10, Z1 to Z6, La, La?, La?, La??, a, b, c, d, p, q, t, t?, m, n, m? and n? are defined herein.
    Type: Application
    Filed: August 12, 2022
    Publication date: December 21, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Il Hwan Choi, Kyeongmun Kim, Min Suk Jung, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim
  • Publication number: 20230303767
    Abstract: A resin includes a unit represented by Chemical Formula 1, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition in Chemical Formula 1, Ar1, Ar2, R1, r1, X1 to X4, Z1, Z2, a and b are described herein.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 28, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Min Suk Jung, Kyeongmun Kim, Jaesoon Bae, Hyeonah Shin, Hye Jin Yim, Il Hwan Choi, Kyeongmin Kim, Bora Shin
  • Patent number: 11655323
    Abstract: The present invention relates to an aromatic poly(amide-imide) copolymer film having high retardation in the thickness direction and exhibiting a low moisture absorption rate, and a method for preparing the same.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: May 23, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Bi Oh Ryu, Soonyong Park, Youngseok Park, Il Hwan Choi, Young Ji Tae, Kwanyeol Paek
  • Patent number: 11582337
    Abstract: An artificial intelligence system and method are disclosed herein. The system includes a processor which implements the method, including: receiving by an input unit a first user input including a request to execute a task using at least one of the electronic device or an external device, transmitting by a wireless communication unit first data associated with the first user input to an external server, receiving a first response from the external server including information associated with at least one of the first user input and a sequence of electronic device states for performing at least a portion of the task, receiving a second user input assigning at least one of a voice command and a touch operation received by a touch screen display as the request to perform the task, and transmitting second data associated with the second user input to the external server.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: February 14, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Il-Hwan Choi, Sang-Wook Kang, Young-Hoon Kim, Seung-Hoon Park, Hyun-Ju Seo, Tae-Kwang Um, Jae-Yong Lee, Jin-Ho Choi, Da-Som Lee, Jae-Yung Yeo
  • Patent number: 11561763
    Abstract: An electronic device is provided. The electronic device includes a housing, a touchscreen display exposed through a first portion of the housing, a microphone disposed at a second portion of the housing, a speaker disposed at a third portion of the housing, a memory disposed inside the housing, a processor disposed inside the housing, and electrically connected to the display, the microphone, the speaker, and the memory. The memory is configured to store a plurality of application programs, each of which includes a graphic user interface (GUI).
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: January 24, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In Jong Rhee, Ji Min Lee, Sang Ki Kang, Han Jun Ku, Sung Pa Park, Jang Seok Seo, In Wook Song, Won Ick Ahn, Kyoung Gu Woo, Ji Soo Yi, Chang Kyun Jeon, Ho Jun Jaygarl, Il Hwan Choi, Yoo Jin Hong, Ji Hyun Kim, Jae Yung Yeo
  • Patent number: 11383485
    Abstract: A plastic laminated film comprising a first layer comprising a polyamideimide copolymer and a second layer provided on at least one surface of the first layer and comprising a polyimide copolymer. The plastic laminated film has both excellent mechanical properties and UV weathering resistance while being colorless and transparent, and can be suitably used as cover films for various flexible or foldable devices.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: July 12, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Kwan Yeol Paek, Soon Yong Park, Young Ji Tae, Young Seok Park, Bi Oh Ryu, Il Hwan Choi
  • Patent number: 11351763
    Abstract: The present disclosure relates to a polyamide block copolymer and a polyamide film including the same. The polyamide block copolymer according to the present disclosure makes it possible to provide a polyamide film exhibiting excellent mechanical properties while being colorless and transparent.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: June 7, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Bi Oh Ryu, Soonyong Park, Youngseok Park, Young Ji Tae, Kwanyeol Paek, Il Hwan Choi
  • Publication number: 20220073680
    Abstract: The present disclosure relates to a polymer resin composition including a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is reduced through an alternating segment structure, and at least one selected from the group consisting of a metal salt compound and an end-capping agent compound, and a polymer film and a resin laminate using the same.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 10, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Il Hwan CHOI, Jiae YEO, Soonyong PARK, Young Ji TAE
  • Patent number: 11248090
    Abstract: A poly(amide-imide) copolymer composition comprising an imide of a polyamic acid and an ultraviolet stabilizer, and a colorless and transparent poly(amide-imide) film including the composition. The poly(amide-imide) copolymer composition according to the present disclosure makes it possible to provide a poly(amide-imide) film exhibiting excellent scratch resistance, UV shielding property, and UV weather resistance while being colorless and transparent. This film can be suitably used as a cover film of various flexible or foldable devices.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: February 15, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Bi Oh Ryu, Soon Yong Park, Young Ji Tae, Young Seok Park, Kwan Yeol Paek, Il Hwan Choi
  • Publication number: 20220033653
    Abstract: The present invention relates to a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is 8.0 nm or less, and a UV-cut slope (dT/d?) measured for a specimen having a thickness of 45 ?m or more and 55 ?m or less according to ASTM E424 is 0.25 or more in the range of 10% to 80% transmittance, and a polymer film and resin laminate using the same. In addition, the present invention relates to a polyamide resin with characteristic profile in which a small-angle X-ray scattering function obtained by irradiating the polyamide resin with X-rays having an energy of 10 KeV to 20 KeV using a small-angle X-ray scattering apparatus satisfies Equation 1 and Equation 2, and a polymer film and resin laminate using the same.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 3, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Il Hwan CHOI, Soonyong PARK, Bi Oh RYU, Young Ji TAE, Youngseok PARK
  • Publication number: 20220025117
    Abstract: The present invention relates to a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is 8.0 nm or less, and a polymer film and resin laminate using the same.
    Type: Application
    Filed: November 1, 2019
    Publication date: January 27, 2022
    Applicant: LG CHEM, LTD.
    Inventor: Il Hwan CHOI
  • Publication number: 20220030100
    Abstract: An artificial intelligence system and method are disclosed herein. The system includes a processor which implements the method, including: receiving by an input unit a first user input including a request to execute a task using at least one of the electronic device or an external device, transmitting by a wireless communication unit first data associated with the first user input to an external server, receiving a first response from the external server including information associated with at least one of the first user input and a sequence of electronic device states for performing at least a portion of the task, receiving a second user input assigning at least one of a voice command and a touch operation received by a touch screen display as the request to perform the task, and transmitting second data associated with the second user input to the external server.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 27, 2022
    Inventors: Il-Hwan CHOI, Sang-Wook KANG, Young-Hoon KIM, Seung-Hoon PARK, Hyun-Ju SEO, Tae-Kwang UM, Jae-Yong LEE, Jin-Ho CHOI, Da-Som LEE, Jae-Yung YEO
  • Patent number: 11228675
    Abstract: The present disclosure provides a method of displaying frequently used applications and an apparatus using the same. The method of displaying frequently used applications includes: collecting application usage information in at least any one of a time period of a day or a user activity; determining an application usage pattern based on the collected application usage information; and determining frequently used applications in the time period of a day or the user activity based on the determined application usage pattern, and displaying the determined frequently used applications.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: January 18, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Sung Hyun Park, Mun Ho Yun, Soo Jin Lee, Yong Suk Lee, Il Hwan Choi
  • Patent number: 11146670
    Abstract: An artificial intelligence system and method are disclosed herein. The system includes a processor which implements the method, including: receiving by an input unit a first user input including a request to execute a task using at least one of the electronic device or an external device, transmitting by a wireless communication unit first data associated with the first user input to an external server, receiving a first response from the external server including information associated with at least one of the first user input and a sequence of electronic device states for performing at least a portion of the task, receiving a second user input assigning at least one of a voice command and a touch operation received by a touch screen display as the request to perform the task, and transmitting second data associated with the second user input to the external server.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: October 12, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Il-Hwan Choi, Sang-Wook Kang, Young-Hoon Kim, Seung-Hoon Park, Hyun-Ju Seo, Tae-Kwang Um, Jae-Yong Lee, Jin-Ho Choi, Da-Som Lee, Jae-Yung Yeo
  • Publication number: 20210286589
    Abstract: An electronic device is provided. The electronic device includes a housing, a touchscreen display exposed through a first portion of the housing, a microphone disposed at a second portion of the housing, a speaker disposed at a third portion of the housing, a memory disposed inside the housing, a processor disposed inside the housing, and electrically connected to the display, the microphone, the speaker, and the memory. The memory is configured to store a plurality of application programs, each of which includes a graphic user interface (GUI).
    Type: Application
    Filed: May 27, 2021
    Publication date: September 16, 2021
    Inventors: In Jong RHEE, Ji Min LEE, Sang Ki KANG, Han Jun KU, Sung Pa PARK, Jang Seok SEO, In Wook SONG, Won Ick AHN, Kyoung Gu WOO, Ji Soo YI, Chang Kyun JEON, Ho Jun JAYGARL, Il Hwan CHOI, Yoo Jin HONG, Ji Hyun KIM, Jae Yung YEO