Patents by Inventor Ji Hyun HEO

Ji Hyun HEO 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: 11947764
    Abstract: An input sensing unit includes a touch sensing unit, which includes a plurality of driving electrodes, a plurality of sensing electrodes, and a driving signal generating unit which provides driving signals to the driving electrodes. The sensing electrodes are insulated from and intersect the driving electrodes. The driving signal generating unit includes touch drivers connected to driving electrodes and a digital-to-analog converter configured to provide a first signal or a second signal, and each of the touch drivers is connected to a preset number of driving electrodes among the driving electrodes.
    Type: Grant
    Filed: May 23, 2022
    Date of Patent: April 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Woong Kim, Oh Jo Kwon, Kyung Tea Park, Keum Dong Jung, Sang Hyun Heo
  • Patent number: 11549003
    Abstract: Disclosed is a copolymer including a first part including an aromatic vinyl-based monomer and a conjugated diene-based monomer; and a second part including an aromatic vinyl-based monomer and a conjugated diene-based monomer, wherein the content of the aromatic vinyl-based monomer is 35 to 45% by weight based on a total weight of the copolymer, and the copolymer satisfies Equation 1 below: V1>V2??<Equation 1> wherein V1 is a vinyl content in the first part, and V2 is a vinyl content in the second part.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: January 10, 2023
    Assignee: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Ji Hyun Heo, June Park, Cheolbeom Bae, Sung Hoon Han, Se-Hee Jung
  • Patent number: 11022365
    Abstract: The present invention relates to a refrigerator appliance including a wire harness fixing device and, more particularly, to a fixing device for fixing a wire harness crossing a space between an inner panel and an outer panel of a door, and where the wire harness is configured for electrical connection with a heater inside a partition unit. Embodiments also include a refrigerator appliance including the wire harness fixing device. The wire harness fixing device having a body part configured to have a hollow portion formed therein, thereby allowing a wire harness to be inserted therein, and an opening portion formed to be open partially at one surface thereof. The wire harness also having a fixing part, a cover part and a coupling part.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 1, 2021
    Assignee: DAEWOO ELECTRONICS CO., LTD.
    Inventor: Ji-Hyun Heo
  • Publication number: 20200255635
    Abstract: Disclosed is a copolymer including a first part including an aromatic vinyl-based monomer and a conjugated diene-based monomer; and a second part including an aromatic vinyl-based monomer and a conjugated diene-based monomer, wherein the content of the aromatic vinyl-based monomer is 35 to 45% by weight based on a total weight of the copolymer, and the copolymer satisfies Equation 1 below: V1>V2 ??<Equation 1> wherein V1 is a vinyl content in the first part, and V2 is a vinyl content in the second part.
    Type: Application
    Filed: October 25, 2019
    Publication date: August 13, 2020
    Inventors: Ji Hyun HEO, June PARK, Cheolbeom BAE, Sung Hoon HAN, Se-Hee JUNG
  • Publication number: 20190368803
    Abstract: The present invention relates to a refrigerator appliance including a wire harness fixing device and, more particularly, to a fixing device for fixing a wire harness crossing a space between an inner panel and an outer panel of a door, and where the wire harness is configured for electrical connection with a heater inside a partition unit. Embodiments also include a refrigerator appliance including the wire harness fixing device. The wire harness fixing device having a body part configured to have a hollow portion formed therein, thereby allowing a wire harness to be inserted therein, and an opening portion formed to be open partially at one surface thereof. The wire harness also having a fixing part, a cover part and a coupling part.
    Type: Application
    Filed: November 21, 2018
    Publication date: December 5, 2019
    Inventor: Ji-Hyun HEO
  • Patent number: 10093754
    Abstract: Disclosed is a method of preparing a rare-earth alkyl phosphate solution, the method including step (a) of preparing an alkyl phosphate amine salt solution by reacting an organic amine with an alkyl phosphate in a first solvent; step (b) of preparing a rare-earth metal salt solution by reacting a rare-earth metal oxide with an acid in the second solvent; and step (c) of mixing and reacting the alkyl phosphate amine salt solution with the rare-earth metal salt solution.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: October 9, 2018
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Hyung Jae Lee, Ji Hyun Heo
  • Publication number: 20180134818
    Abstract: Disclosed is a method of preparing a rare-earth alkyl phosphate solution, the method including step (a) of preparing an alkyl phosphate amine salt solution by reacting an organic amine with an alkyl phosphate in a first solvent; step (b) of preparing a rare-earth metal salt solution by reacting a rare-earth metal oxide with an acid in the second solvent; and step (c) of mixing and reacting the alkyl phosphate amine salt solution with the rare-earth metal salt solution.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 17, 2018
    Inventors: Hyung Jae LEE, Ji Hyun HEO
  • Patent number: 9908830
    Abstract: A method for preparing a phenolic oligomer antioxidant with a very small residual content of butylated hydroxytoluene (BHT) is provided. Specifically, the method for preparing the phenolic oligomer antioxidant relates to a method which is capable of a BHT-free phenolic oligomer antioxidant or a phenolic oligomer antioxidant containing a trace amount of residual BHT by removing the precursor of BHT as much as possible by performing the concentration under the reduced pressure while injecting an inert gas to an intermediate product and/or removing BHT by performing the concentration under the reduced pressure while injecting an inert gas to the final product.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: March 6, 2018
    Assignee: KUMHO PETROCHEMICAL CO., LTD
    Inventors: Hyung Jae Lee, Chang Kyo Shin, Seok Hyun Kang, Kyoung Ho Row, Ji Hyun Heo
  • Publication number: 20170174597
    Abstract: A method for preparing a phenolic oligomer antioxidant with a very small residual content of butylated hydroxytoluene (BHT) is provided. Specifically, the method for preparing the phenolic oligomer antioxidant relates to a method which is capable of a BHT-free phenolic oligomer antioxidant or a phenolic oligomer antioxidant containing a trace amount of residual BHT by removing the precursor of BHT as much as possible by performing the concentration under the reduced pressure while injecting an inert gas to an intermediate product and/or removing BHT by performing the concentration under the reduced pressure while injecting an inert gas to the final product.
    Type: Application
    Filed: August 4, 2016
    Publication date: June 22, 2017
    Inventors: Hyung Jae LEE, Chang Kyo SHIN, Seok Hyun KANG, Kyoung Ho ROW, Ji Hyun HEO