Patents by Inventor Hyeong Woo Park

Hyeong Woo Park 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: 20240127746
    Abstract: A light emitting display device includes a display panel including a first pixel group including a plurality of pixels in 2N rows. The light emitting display device further includes a second pixel group disposed subsequent to the first pixel group and including a plurality of pixels in 2N rows. The light emitting display device further includes an emission signal unit including a first emission stage for applying the same first emission signal to the first pixel group and a second emission stage for applying the same second emission signal to the second pixel group. In a first frame, a falling time of the first emission signal and a rising time of the second emission signal are different from each other.
    Type: Application
    Filed: December 22, 2023
    Publication date: April 18, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Jeong Ki KIM, Joon Young PARK, Jae Woo PARK, Sung Min CHO, Hyeong Kyu KIM
  • Publication number: 20240105934
    Abstract: A positive electrode active material for a lithium secondary battery has a mixture of microparticles having a predetermined average particle size (D50) and macroparticles having a larger average particle size (D50) than the microparticles. The microparticles have the average particle size (D50) of 1 to 10 ?m and are at least one selected from the group consisting of particles having a carbon material coating layer on all or part of a surface of primary macroparticles having an average particle size (D50) of 1 ?m or more, particles having a carbon material coating layer on all or part of a surface of secondary particles formed by agglomeration of the primary macroparticles, and a mixture thereof. The macroparticles are secondary particles having an average particle size (D50) of 5 to 20 ?m formed by agglomeration of primary microparticles having a smaller average particle size (D50) than the primary macroparticles.
    Type: Application
    Filed: June 9, 2022
    Publication date: March 28, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Gi-Beom Han, Jong-Woo Kim, Eun-Sol Lho, Kang-Joon Park, Min Kwak, Seul-Ki Kim, Hyeong-Il Kim, Sang-Min Park, Sang-Wook Lee, Wang-Mo Jung
  • Patent number: 10744535
    Abstract: Disclosed herein is a system for detecting, removing, transferring and recovering an incompletely dried material. The system includes a transfer device transferring the material subjected to a drying process, a load cell measuring a weight of the material transferred through the transfer device, a material receiving unit receiving the measured material from the load cell when the weight of the measured material is higher than weights of other materials or a preset reference weight, a thermal imaging camera photographing the material received by the material receiving unit, an incompletely-dried-material determining unit acquiring temperature information of the material photographed by analyzing image data photographed by the thermal imaging camera, and determining whether the photographed material is an incompletely dried material based on the acquired temperature information, and an incompletely-dried-material receiving unit receiving the incompletely dried material from the material receiving unit.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: August 18, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hyung Sop Kim, Hyeong Woo Park
  • Publication number: 20190060958
    Abstract: Disclosed herein is a system for detecting, removing, transferring and recovering an incompletely dried material. The system includes a transfer device transferring the material subjected to a drying process, a load cell measuring a weight of the material transferred through the transfer device, a material receiving unit receiving the measured material from the load cell when the weight of the measured material is higher than weights of other materials or a preset reference weight, a thermal imaging camera photographing the material received by the material receiving unit, an incompletely-dried-material determining unit acquiring temperature information of the material photographed by analyzing image data photographed by the thermal imaging camera, and determining whether the photographed material is an incompletely dried material based on the acquired temperature information, and an incompletely-dried-material receiving unit receiving the incompletely dried material from the material receiving unit.
    Type: Application
    Filed: October 23, 2017
    Publication date: February 28, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Hyung Sop Kim, Hyeong Woo Park