Patents by Inventor Jin-sook Ryu

Jin-sook Ryu 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: 11505624
    Abstract: The present invention relates to a rubber composition having excellent tensile properties and viscoelasticity properties and including a modified conjugated diene-based polymer. The rubber composition may include a modified conjugated diene-based polymer which is selected considering target tensile properties and viscoelasticity properties, by predicting in advance the correlation of the modification ratio of the modified conjugated diene-based polymer and the dynamic viscoelasticity loss coefficient at 60° C. of the rubber composition through Mathematical Formula 1 and Mathematical Formula 2. Therefore, excellent compounding properties may be shown.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: November 22, 2022
    Inventors: Jin Sook Ryu, Kyoung Hwan Oh, Woo Jin Cho, Suk Youn Kang, Sung Joon Oh, Sun Ok Oh
  • Publication number: 20220244235
    Abstract: Provided is a method of analyzing a copolycarbonate. More particularly, provided is a method of analyzing a copolycarbonate, in which a polysiloxane structure is introduced into the main chain of a polycarbonate, the method capable of more accurately analyzing a weight average molecular weight, a number average molecular weight, and a molecular weight distribution of a polysiloxane-containing aromatic diol compound which is used as a starting material.
    Type: Application
    Filed: June 19, 2020
    Publication date: August 4, 2022
    Inventors: Hyo Yong KIM, Jin Sook RYU, Sunok OH, Sung Joon OH
  • Publication number: 20220214531
    Abstract: A laser crystallization apparatus according to an embodiment includes: a light source unit which irradiates a laser beam; and a path conversion unit which converts the laser beam incident from the light source unit into a linear beam having a long axis parallel to a first direction and a short axis parallel to a second direction. The linear beam propagates in a third direction perpendicular to the first direction and the second direction, the path conversion unit includes an incident window extending parallel to a first length direction, an emission window extending parallel to a second direction, a first reflection unit disposed at the same side with the incident window, and a second reflection unit disposed at the same side with the emission window, and the second length direction extends parallel to the first direction in a view of the third direction.
    Type: Application
    Filed: October 25, 2021
    Publication date: July 7, 2022
    Inventors: Akifumi SANGU, Je Kil RYU, Cheol Ho PARK, Hae Sook LEE, Jin Hong JEUN, Young Su CHAE, Gyoo Wan HAN
  • Publication number: 20220212291
    Abstract: A laser crystallization apparatus according to an embodiment includes a light source unit irradiating a laser beam; and an optical unit to which the laser beam is incident, wherein the optical unit includes a first portion and a second portion bonded to each other on a bonded surface, and a first width of the first portion and a second width of the second portion are the same as each other on the bonded surface based on a direction parallel to the incident direction of the laser beam.
    Type: Application
    Filed: October 18, 2021
    Publication date: July 7, 2022
    Inventors: Akifumi Sangu, Je Kil Ryu, Cheol Ho Park, Hae Sook Lee, Jin Hong Jeun, Young Su Chae, Gyoo Wan Han
  • Patent number: 11377556
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based block copolymer film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having low haze and yellow index value while exhibiting excellent transparency.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 5, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Duk Hun Jang, Byung Guk Kim, Young Sik Eom, Sung Yeol Choi, Sang Gon Kim, Jin Sook Ryu, Sun Ok Oh, Hyung Sam Choi
  • Patent number: 11370436
    Abstract: A vehicle controller, a system including the same, and a method thereof are provided. The vehicle controller includes a processor that detect an intervening vehicle based on a line of sight direction of a user; and respond to the intervening vehicle based on an intent of the user when the intervening vehicle is detected; and a storage configured to store information regarding the line of sight direction of the user or the detected intervening vehicle.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: June 28, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Byoung Joon Lee, Jin Kwon Kim, Seong Sook Ryu, Sam Yong Kim
  • Publication number: 20210277235
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based block copolymer film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having low haze and yellow index value while exhibiting excellent transparency.
    Type: Application
    Filed: December 13, 2017
    Publication date: September 9, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Duk Hun JANG, Byung Guk KIM, Young Sik EOM, Sung Yeol CHOI, Sang Gon KIM, Jin Sook RYU, Sun Ok OH, Hyung Sam CHOI
  • Patent number: 10995165
    Abstract: The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition (X1)a—Sn—(X2)4-a??[Formula 1] wherein, a, X1, and X2 are the same as defined in the disclosure.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 4, 2021
    Inventors: Suk Youn Kang, Soo Young Choi, Woo Jin Cho, Suk Joon Yoo, Jeong Heon Ahn, Jin Sook Ryu
  • Publication number: 20210040241
    Abstract: A method for preparing a catalyst for use in polymerizing a conjugated diene-based monomer, the catalyst, and a method for preparing a conjugated diene-based polymer using the same are disclosed herein. In an embodiment, a method of preparing a catalyst comprises mixing a lanthanide rare earth element-containing compound, an alkylating agent compound and a halogen compound in the presence of a solvent to prepare a catalyst composition, adding a conjugated diene-based monomer to the catalyst composition to form a preformed catalyst composition, and aging the preformed catalyst composition at a temperature of ?1° C. to ?15° C. for 3 hours to 98 hours to prepare the catalyst. The catalyst has excellent catalyst activity and polymerization reactivity and is useful for preparing a conjugated diene-based polymer which has an excellent modification ratio and improved compounding properties.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 11, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Kyoung Hwan Oh, Hee Jung Jeon, Su Hwa Kim, Jeong Heon Ahn, Jin Sook Ryu, Suk Youn Kang
  • Publication number: 20200377625
    Abstract: The present invention relates to a rubber composition having excellent tensile properties and viscoelasticity properties and including a modified conjugated diene-based polymer. The rubber composition may include a modified conjugated diene-based polymer which is selected considering target tensile properties and viscoelasticity properties, by predicting in advance the correlation of the modification ratio of the modified conjugated diene-based polymer and the dynamic viscoelasticity loss coefficient at 60° C. of the rubber composition through Mathematical Formula 1 and Mathematical Formula 2. Therefore, excellent compounding properties may be shown.
    Type: Application
    Filed: September 20, 2018
    Publication date: December 3, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jin Sook RYU, Kyoung Hwan OH, Woo Jin CHO, Suk Youn KANG, Sung Joon OH, Sun Ok OH
  • Patent number: 10700387
    Abstract: A carboxymethyl cellulose is provided with a polydispersity index of 10 or more and a weight average molecular weight of 2,000,000 or more in a negative electrode mix slurry. Accordingly, phase stability of the negative electrode mix slurry is improved, achieving improved adhesiveness and low resistance of a negative electrode manufactured therefrom.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: June 30, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Kwang-Ho Jeong, Ye-Cheol Rho, Jin-Sook Ryu, Je-Young Kim, Jung-Woo Yoo
  • Publication number: 20200172698
    Abstract: The present invention relates to a rubber composition having excellent tensile properties and viscoelasticity properties and including a conjugated diene-based polymer. The rubber composition may include a modified conjugated diene-based polymer which is selected considering target tensile properties and viscoelasticity properties, by predicting in advance the correlation between the modification ratio of the modified conjugated diene-based polymer and the dynamic viscoelasticity loss coefficient at 60° C. of the rubber composition through Mathematical Formula 1 and Mathematical Formula 2. Therefore, excellent compounding properties may be shown.
    Type: Application
    Filed: November 21, 2018
    Publication date: June 4, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Suk Youn Kang, Jin Sook Ryu, Kyoung Hwan Oh, Jeong Heon Ahn
  • Patent number: 10538608
    Abstract: The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition. (X1)a—Sn—(X2)4-a??[Formula 1] In Formula 1, a, X1, and X2 are the same as defined in the disclosure.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: January 21, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Suk Youn Kang, Soo Young Choi, Woo Jin Cho, Suk Joon Yoo, Jeong Heon Ahn, Jin Sook Ryu
  • Patent number: 10525151
    Abstract: A method for preparing a radiopharmaceutical and, specifically, a method for preparing an organic fluoride-aliphatic compound usable as a radiopharmaceutical, a method for purifying the prepared organic fluoride-aliphatic compound, and a method for preparing a radiopharmaceutical by using a cassette comprising a backdraft preventing reaction container. A method for preparing an organic fluorinated aliphatic compound includes allowing a fluorine salt to react with a leaving group-containing aliphatic compound by using a multifunctional solvent represented by the following Chemical Formula 1 to obtain an aliphatic compound labeled with [18F] fluoride substituting for the leaving group. The organic fluoride-aliphatic compound can be prepared and purified through even a simple process at high yield, high efficiency, and high purity, and the radiopharmaceutical can be safely prepared without damage to a synthetic apparatus.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: January 7, 2020
    Assignee: THE ASAN FOUNDATION
    Inventors: Sang-ju Lee, Seung-jun Oh, Dae-hyuk Moon, Jin-sook Ryu, Jae-seung Kim, Jong-jin Lee
  • Publication number: 20190367648
    Abstract: The present invention provides a catalyst composition including a functionalizing agent of the following Formula 1 together with a rare earth metal compound, an alkylating agent, and a halogen compound, having good catalytic activity and polymerization reactivity and useful for the preparation of a conjugated diene-based polymer having high linearity and excellent processability, and a conjugated diene-based polymer prepared using the catalyst composition (X1)a—Sn—(X2)4-a??[Formula 1] wherein, a, X1, and X2 are the same as defined in the disclosure.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 5, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Suk Youn Kang, Soo Young Choi, Woo Jin Cho, Suk Joon Yoo, Jeong Heon Ahn, Jin Sook Ryu
  • Patent number: 10392344
    Abstract: The present invention relates to a method for labelling fluorine-18, which is a radioisotope, and more specifically, to a method for labelling a [18F]fluoride in a method for preparing an organic [18F]fluoro compound by reacting an alkyl halide or an alkyl sulfonate with a [18F]fluoride, wherein a [18F]fluoride supported on a quaternary alkyl ammonium polymer support is eluted using a solution containing a metal salt or a quaternary ammonium salt with an adjusted pH, and a base is not additionally used. The present invention enables a labeling reaction without an additional base after precisely reflecting the concentration of a base absolutely necessary for the nucleophilic substitution of a [18F]fluoride or eluting a [18F]fluoride using a [18F]fluoride eluent with an adjusted pH, thereby stably obtaining a [18F]fluoride-labelled compound in a high yield, and is thus useful for production of fluorine-18-labelled radioactive medical supplies.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: August 27, 2019
    Assignee: THE ASAN FOUNDATION
    Inventors: Sang Ju Lee, Seung Jun Oh, Dae Hyuk Moon, Jin Sook Ryu, Jae Seung Kim, Jong Jin Lee
  • Publication number: 20190134234
    Abstract: The present disclosure relates to a composition for stabilizing the radiochemical purity of [18F]fluoro-dopa by inhibiting the formation of impurities during a predetermined time period, and a method for preparing the same. The composition according to the present disclosure includes: [18F]fluoro-dopa; ethanol in a concentration of 5% to 30%(v/v) relative to the total composition; and a buffer having a pKa value of 6 to 8.1 at 25° C., in which the composition stabilizes the radiochemical purity of the [18F]fluoro-dopa by inhibiting the formation of impurities during a predetermined time period.
    Type: Application
    Filed: July 22, 2016
    Publication date: May 9, 2019
    Applicant: CI-CO HEALTHCARE Co., Ltd.
    Inventors: Sang Ju LEE, Seung Jun OH, Jin Sook RYU, Jae Seung KIM, Dae Hyuk MOON, Jong Jin LEE
  • Patent number: 10271199
    Abstract: A method and apparatus for performing a membership verification or an access control in a wireless communication system is provided. A mobility management entity (MME) performs the membership verification or the access control of a user equipment (UE), and transmits verified UE membership information to a target HeNB.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: April 23, 2019
    Assignee: LG Electronics Inc.
    Inventors: Jian Xu, Kyung Min Park, Jin Sook Ryu, Sung Hoon Jung
  • Publication number: 20180138557
    Abstract: A carboxymethyl cellulose is provided with a polydispersity index of 10 or more and a weight average molecular weight of 2,000,000 or more in a negative electrode mix slurry. Accordingly, phase stability of the negative electrode mix slurry is improved, achieving improved adhesiveness and low resistance of a negative electrode manufactured therefrom.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 17, 2018
    Inventors: Kwang-Ho Jeong, Ye-Cheol Rho, Jin-Sook Ryu, Je-Young Kim, Jung-Woo Yoo
  • Patent number: 9973990
    Abstract: A method and apparatus for transmitting a handover report message in a wireless communication system is provided. In a heterogeneous network (HetNet) intra long term evolution (LTE) failure case, an eNodeB (eNB) performs a handover procedure for a user equipment (UE) with a source eNB, and receives a radio link failure (RLF) indication message. The eNB transmits a handover report message to the source eNB, the handover report message including UE history information element (IE) of the UE.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: May 15, 2018
    Assignee: LG Electronics Inc.
    Inventors: Kyung Min Park, Dae Wook Byun, Jin Sook Ryu, Jian Xu