Patents by Inventor Ki Jae Lee

Ki Jae 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: 11969707
    Abstract: The method for preparing a super absorbent polymer according to the present disclosure has a feature that it is possible to reduce the generation of a fine powder during production of the super absorbent polymer while maintaining excellent physical properties of the super absorbent polymer, including centrifuge retention capacity (CRC) and vortex removal time.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: April 30, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jaeyul Kim, Jong Hun Song, Gicheul Kim, Yoon Jae Min, Ki Hyun Kim, Seul Ah Lee, In Yong Jeong, Heechang Woo
  • Patent number: 11958438
    Abstract: A system and method for managing a tractor-trailer and a method are provided. The system includes: a control server to manage a position of a trailer, identification information on the trailer, and identification information on a tractor matched to the trailer with respect to each hub; a trailer to authenticate the tractor by comparing the identification information, which is received from the control server, on the tractor, with identification information received from the tractor, and to release an electronic parking brake (EPB) when an authentication result for the tractor is correct; and a tractor to authenticate the trailer by comparing the identification information, which is received from the control server, on the trailer with identification information received from the trailer to authenticate the trailer, and to be coupled to the trailer, when an authentication result for the trailer is correct.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 16, 2024
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Joo Han Nam, Jong Su Lim, Ki Beom Lee, Sang Hyu Lee, Hyun Jae Bang
  • Publication number: 20240116398
    Abstract: An electrified vehicle includes: a battery; a motor drive device configured to drive a motor through an inverter, based on a voltage of the battery; and a battery controller configured to determine whether to perform output limiting on the battery, based on whether a ratio of regenerative braking is less than or equal to a preset ratio, wherein the ratio of regenerative braking is varied according to an amount of charging of the battery and an amount of discharging of the battery within a preset time interval, and adjust, based on the output limiting being performed on the battery, a derate ratio associated with a battery output limit value.
    Type: Application
    Filed: May 9, 2023
    Publication date: April 11, 2024
    Inventors: Yong Jae Kim, Ki Seung Baek, Jong Gu Lee, Gun Goo Lee, Jeong Han Park
  • Patent number: 11946607
    Abstract: A lighting device disclosed in an embodiment of the invention includes a substrate; light sources disposed on the substrate; and a resin layer disposed on the substrate and the light sources. a first reflective layer disposed on the resin layer, wherein the resin layer includes an exit surface facing the light sources, and the exit surface of the resin layer includes convex portions facing each of the light sources and recess portions respectively disposed between the plurality of convex portions, concave surfaces disposed in each of the plurality of recess portions may have a curvature, and a radius of curvature of the concave surfaces may increase in one direction.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: April 2, 2024
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Young Jae Choi, Dong Hyun Lee, Ki Chang Lee, Gyeong Il Jin, Moo Ryong Park
  • Publication number: 20240101803
    Abstract: Disclosed are a thermoplastic elastomeric composition for vehicle mounts which has improved surface energy and compression set while solving reduction in wear strength, by blending EPDM rubber, polypropylene, silicon, and poly(styrene-ethylene-butadiene-styrene) (SEBS) in appropriate amounts, and a molded article including the same.
    Type: Application
    Filed: May 2, 2023
    Publication date: March 28, 2024
    Inventors: Sang Hyun Lee, Young Chul Shin, Ji Hye Park, Ki Hyun Cho, Han Sang Lee, Kyoung Min Hong, Ki Jae Kim
  • Publication number: 20240099081
    Abstract: A flexible display device including a substrate, a light emitting layer, a first insulating layer, and a conductive layer. The substrate includes a bent region and a non-bent region. The light emitting layer overlaps the non-bent region. The first insulating layer is disposed on the substrate. The conductive layer is disposed on the first insulating layer. A sidewall of the first insulating layer includes a first tapered surface. The first tapered surface includes at least three curved surface portions continuously arranged with one another.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventors: Ki Hyun CHO, Yong Jae PARK, Sang Jo LEE, Won Suk CHOI, Yoon Sun CHOI
  • Patent number: 11918978
    Abstract: Provided is a method of preparing a superabsorbent polymer. More specifically, provided is a method of preparing a superabsorbent polymer capable of exhibiting improved initial absorbency and a rapid absorption rate by polymerizing monomers having acidic groups, of which part is neutralized with a basic material including potassium hydroxide, in the presence of an encapsulated foaming agent.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: March 5, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Seul Ah Lee, Gicheul Kim, Dae Woo Nam, Ki Hyun Kim, Jun Kyu Kim, Young Jae Hur
  • Patent number: 11917875
    Abstract: A display device includes a substrate including an active area having pixels and a non-active area including a pad region. A pad electrode is disposed in the pad region and includes a first pad electrode and a second pad electrode disposed on the first pad electrode. A first insulating pattern is interposed between the first and second pad electrodes. In a plan view, the first insulating pattern is positioned inside the first pad electrode, and a portion of the second pad electrode overlapping the first insulating pattern protrudes further from the substrate in a thickness direction than a portion of the second pad electrode not overlapping the first insulating pattern. The second pad electrode directly contacts a portion of the upper surface of the first pad electrode. In a plan view, an area of the second pad electrode is greater than an area of the first pad electrode.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Kyung Youk, Chan Jae Park, Min Soo Kim, Yoon A Kim, Sang Duk Lee, Chel Gou Lim
  • Patent number: 11884777
    Abstract: Provided is a diol compound of the following Chemical Formula 1, a polycarbonate comprising the diol compound, and a method of producing the polycarbonate:
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: January 30, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Young Young Hwang, Mooho Hong, Ki Jae Lee
  • Publication number: 20240002627
    Abstract: The present invention relates to a monomer composition for synthesizing recycled plastic, which comprises an aromatic diol compound, wherein a color coordinate b* is 0.1 to 1, wherein the aromatic diol compound yield is more than 75%, and wherein the monomer composition for synthesizing recycled plastic is recovered from a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.
    Type: Application
    Filed: July 14, 2022
    Publication date: January 4, 2024
    Inventors: Jeongbin LEE, Eunju PARK, Ki Jae LEE, Jungmoon BAE, Mooho HONG
  • Publication number: 20230391702
    Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.
    Type: Application
    Filed: July 14, 2022
    Publication date: December 7, 2023
    Inventors: Eunju PARK, Ki Jae LEE, Jungmoon BAE, Jeongbin LEE, Joong Jin HAN, Mooho HONG
  • Publication number: 20230383090
    Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic which contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic, and molded product using the same.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 30, 2023
    Inventors: Jeongbin LEE, Eunju PARK, Ki Jae LEE, Jungmoon BAE, Joong Jin HAN, Mooho HONG
  • Publication number: 20230382837
    Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 30, 2023
    Inventors: Jungmoon BAE, Eunju PARK, Ki Jae LEE, Jeongbin LEE, Joong Jin HAN, Mooho HONG
  • Publication number: 20230383089
    Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same. Also, the present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a by-product with a high added value recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 30, 2023
    Inventors: Ki Jae LEE, Eunju PARK, Jungmoon BAE, Jeongbin LEE, Joong Jin HAN, Mooho HONG
  • Publication number: 20230374251
    Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 23, 2023
    Inventors: Eunju PARK, Ki Jae LEE, Jungmoon BAE, Jeongbin LEE, Mooho HONG
  • Patent number: 11702506
    Abstract: The present disclosure relates to a polycarbonate and a preparation method thereof, which has a novel structure with an improvement in weather resistance and refractive index, while having excellent mechanical properties.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: July 18, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Ki Jae Lee, Young In Yang, Youngwook Son, Mooho Hong, Byoungkue Jeon, Young Young Hwang
  • Patent number: 11499010
    Abstract: Provided is a polycarbonate of Chemical Formula 1: wherein in Chemical Formula 1: Ar is C6-60 arylene unsubstituted or substituted with C1-10 alkyl; and n and m are each independently an integer from 1 to 50, provided that n+m is 2 or more, and a preparation method thereof.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: November 15, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Youngwook Son, Young In Yang, Ki Jae Lee, Mooho Hong, Byoungkue Jeon, Young Young Hwang
  • Publication number: 20220251056
    Abstract: Provided are a diol compound which may be used to prepare a polycarbonate having excellent weather resistance, hardness, heat resistance, transparency, impact resistance, etc. while having excellent mechanical properties, a polycarbonate prepared by using the same, and a preparation method thereof.
    Type: Application
    Filed: September 3, 2020
    Publication date: August 11, 2022
    Inventors: Dayoung LEE, Ki Jae LEE, Mooho HONG, Young Young HWANG, Youngwook SON, Daehyeon HWANG
  • Publication number: 20220025113
    Abstract: A method for preparing granular polycarbonate particles is disclosed herein. In some embodiments, a method for preparing granulated polycarbonate particles includes mixing a polymerization reaction solution comprising polycarbonate and an organic solvent, and an anti-solvent solution comprising water and an anti-solvent to prepare a mixed solution, heating the mixed solution to remove the organic solvent, and drying or filtering the mixed solution to obtain granular polycarbonate particles. The granular polycarbonate particles having excellent physical properties without using a stabilizer or a surfactant can be obtain.
    Type: Application
    Filed: January 16, 2020
    Publication date: January 27, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Hyunju Kim, Hyeon Hui Kim, Jae Hoon Choe, Mooho Hong, Ki Jae Lee, Soyeon Jee
  • Publication number: 20210332185
    Abstract: Provided is a diol compound of the following Chemical Formula 1, a polycarbonate comprising the diol compound, and a method of producing the polycarbonate.
    Type: Application
    Filed: September 11, 2019
    Publication date: October 28, 2021
    Inventors: Young Young HWANG, Mooho HONG, Ki Jae LEE