Patents by Inventor Hye Kyung Lee

Hye Kyung 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: 11937455
    Abstract: A display device includes a substrate having a first main display area, a second main display area, and a sub-display area positioned between the first main display area and the second main display area; a first driving circuit positioned on the sub-display area of the substrate; a first sub-pixel circuit and a second sub-pixel circuit positioned on respective sides of the first driving circuit in the sub-display area of the substrate; a first sub-light-emitting device connected to the first sub-pixel circuit and overlapping the first driving circuit; and a second sub-light-emitting device connected to the second sub-pixel circuit and overlapping the first driving circuit.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: March 19, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye Won Kim, Sun Hee Lee, Ju Chan Park, Gun Hee Kim, Ok-Kyung Park
  • Patent number: 11920942
    Abstract: A method for controlling autonomous lane change of a moving body is disclosed. The method includes calculating a driving route from a current location of the moving body to a destination; determining whether an intersection or a forked road exists at a predetermined distance from the current location of the moving body on the calculated driving route; checking, when the intersection or the forked road exists, link information corresponding to a lane in which the moving body is located, and determining a moving direction toward the intersection or the forked road; determining an entry route for entering the intersection or the forked road according to the determined moving direction; and generating a control signal for controlling a moving direction of the moving body according to the determined entry route.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: March 5, 2024
    Assignee: THINKWARE CORPORATION
    Inventors: Ki Wook Lee, Hye Kyung Byun, Tae Kyu Han
  • Publication number: 20240067668
    Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 29, 2024
    Inventors: Yi Kyung Ko, Ah Reum Han, Jin Hee Park, Yeong Deok Lee, Hye Rim Im, Kyun Eun Kim, Dong Keun Hwang, Su Been Nam, Myung Hoe Heo, Se Rin Cho, Eun Hwa Ko, Sung Hwan Kim, Hwan Geun Choi
  • Patent number: 11759977
    Abstract: The present invention provides a polypropylene resin pellet that is environment friendly, has excellent workability, and enables preparation of fine denier fiber, and a method for preparing the same.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: September 19, 2023
    Inventors: Heekwang Park, Hye Kyung Lee, Ha Na Park, Kyung Seop Noh, Hyunsup Lee, Seong Min Chae, Heon Yong Kwon, Sangjin Jeon, Seok Hwan Kim
  • Patent number: 11731123
    Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: August 22, 2023
    Inventors: Byung Seok Kim, Insun Lee, Seok Hwan Kim, Hye Kyung Lee, Heekwang Park, Daesik Hong, Sangjin Jeon
  • Publication number: 20230023983
    Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 26, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Byung Seok Kim, Insun Lee, Seok Hwan Kim, Hye Kyung Lee, Heekwang Park, Daesik Hong, Sangjin Jeon
  • Patent number: 11504706
    Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: November 22, 2022
    Inventors: Byung Seok Kim, Insun Lee, Seok Hwan Kim, Hye Kyung Lee, Heekwang Park, Daesik Hong, Sangjin Jeon
  • Patent number: 11384183
    Abstract: A catalyst composition, a method from preparing an olefin polymer using the same, and an olefin polymer prepared from the same are disclosed herein. In some embodiments, a catalyst composition includes a first metallocene compound represented by the Chemical Formula 1, a second metallocene compound represented by the Chemical Formula 2, and a support. The catalyst composition can exhibit high activity in an olefin polymerization reaction and thus contribute to reducing catalyst costs, and can also exhibit high copolymerizability which can secure excellent processability and long-term physical properties, and thus, is suitable for providing polymers for pipes.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: July 12, 2022
    Inventors: Ye Jin Lee, Eun Kyoung Song, Daesik Hong, Hye Kyung Lee, Joongsoo Kim, Eunyoung Shin, Jinyoung Kwak
  • Patent number: 11370851
    Abstract: The present disclosure provides a novel transition metal compound which exhibits excellent catalytic activity and is useful in the preparation of a polypropylene having high impact strength, and a method for preparing a homo polypropylene using the same.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: June 28, 2022
    Inventors: Byung Seok Kim, Insun Lee, Seok Hwan Kim, Hye Kyung Lee, Sangjin Jeon, Seyoung Kim
  • Patent number: 11077434
    Abstract: A method of preparing a high-purity metallocene catalyst capable of providing various selectivities and high activities for polyolefin copolymers, wherein a metallocene compound is formed by reacting a ligand compound with a zirconium compound, and then lithium chloride as a reaction by-product included in the metallocene compound is prepared in a form of a complex compound and effectively removed in a subsequent step of extracting the catalyst, thereby effectively preparing the high-purity metallocene catalyst, is provided.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: August 3, 2021
    Inventors: Hee Kwang Park, Hye Kyung Lee, Byung Seok Kim, Jae Youp Cheong, Sang Jin Jeon
  • Patent number: 11072670
    Abstract: A catalyst composition and a method for preparing an olefin polymer by using the same are provided herein. In some embodiments, a catalyst composition includes a transition metal compound having a compound (A) represented by Chemical Formula 1 and a compound (B) represented by Chemical Formula 2 present in a molar ratio of 1.6:1 to 18. The catalyst composition has high activity in an olefin polymerization reaction and can contribute to a reduction of catalyst cost. The catalyst composition aides in high copolymerizability of olefin monomers, and the produced olefin polymers can exhibit excellent processability and long-term physical properties, suitable for a pipe.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: July 27, 2021
    Inventors: Ye Jin Lee, Hye Kyung Lee, Eun Kyoung Song, Daesik Hong, Byung Seok Kim, Eunyoung Shin, Jinyoung Kwak
  • Publication number: 20210189025
    Abstract: The present disclosure provides a novel transition metal compound which exhibits excellent catalytic activity and is useful in the preparation of a polypropylene having high impact strength, and a method for preparing a homo polypropylene using the same.
    Type: Application
    Filed: June 13, 2019
    Publication date: June 24, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Byung Seok Kim, Insun Lee, Seok Hwan Kim, Hye Kyung Lee, Sangjin Jeon, Seyoung Kim
  • Publication number: 20210078205
    Abstract: The present invention provides a polypropylene resin pellet that is environment friendly, has excellent workability, and enables preparation of fine denier fiber, and a method for preparing the same.
    Type: Application
    Filed: November 4, 2019
    Publication date: March 18, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Heekwang Park, Hye Kyung Lee, Ha Na Park, Kyung Seop Noh, Hyunsup Lee, Seong Min Chae, Heon Yong Kwon, Sangjin Jeon, Seok Hwan Kim
  • Publication number: 20210054120
    Abstract: A catalyst composition, a method from preparing an olefin polymer using the same, and an olefin polymer prepared from the same are disclosed herein. In some embodiments, a catalyst composition includes a first metallocene compound represented by the Chemical Formula 1, a second metallocene compound represented by the Chemical Formula 2, and a support. The catalyst composition can exhibit high activity in an olefin polymerization reaction and thus contribute to reducing catalyst costs, and can also exhibit high copolymerizability which can secure excellent processability and long-term physical properties, and thus, is suitable for providing polymers for pipes.
    Type: Application
    Filed: January 15, 2020
    Publication date: February 25, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Ye Jin Lee, Eun Kyoung Song, Daesik Hong, Hye Kyung Lee, Joongsoo Kim, Eunyoung Shin, Jinyoung Kwak
  • Publication number: 20210031180
    Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.
    Type: Application
    Filed: December 14, 2018
    Publication date: February 4, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Byung Seok Kim, Insun Lee, Seok Hwan Kim, Hye Kyung Lee, Heekwang Park, Daesik Hong, Sangjin Jeon
  • Publication number: 20200354488
    Abstract: A catalyst composition and a method for preparing an olefin polymer by using the same are provided herein. In some embodiments, a catalyst composition includes a transition metal compound having a compound (A) represented by Chemical Formula 1 and a compound (B) represented by Chemical Formula 2 present in a molar ratio of 1.6:1 to 18. The catalyst composition has high activity in an olefin polymerization reaction and can contribute to a reduction of catalyst cost. The catalyst composition aides in high copolymerizability of olefin monomers, and the produced olefin polymers can exhibit excellent processability and long-term physical properties, suitable for a pipe.
    Type: Application
    Filed: November 28, 2018
    Publication date: November 12, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Ye Jin Lee, Hye Kyung Lee, Eun Kyoung Song, Daesik Hong, Byung Seok Kim, Eunyoung Shin, Jinyoung Kwak
  • Patent number: 10815322
    Abstract: The present invention relates to a supported metallocene catalyst including a novel single metallocene compound having excellent polymerization activity, and a process for producing a polypropylene having excellent processability and broad molecular weight distribution using the same.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 27, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jong Woo Park, Hye Kyung Lee, Byung Seok Kim, Sang Jin Jeon, Jae Youp Cheong, Hee Kwang Park
  • Publication number: 20190224661
    Abstract: A method of preparing a high-purity metallocene catalyst capable of providing various selectivities and high activities for polyolefin copolymers, wherein a metallocene compound is formed by reacting a ligand compound with a zirconium compound, and then lithium chloride as a reaction by-product included in the metallocene compound is prepared in a form of a complex compound and effectively removed in a subsequent step of extracting the catalyst, thereby effectively preparing the high-purity metallocene catalyst, is provided.
    Type: Application
    Filed: July 7, 2017
    Publication date: July 25, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Hee Kwang Park, Hye Kyung Lee, Byung Seok Kim, Jae Youp Cheong, Sang Jin Jeon
  • Patent number: 10280238
    Abstract: The present invention provides a transition metal compound, a catalyst composition comprising the same, and a method for producing an olefin polymer using the catalyst composition, the transition metal compound being capable of exhibiting high activity in olefin polymerization reaction, and also being capable of easily controlling the physical properties of an olefin polymer. When the transition metal compound is used, it is possible to provide an olefin polymer having an excellent energy-saving effect at the time of processing or molding.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: May 7, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Byung Seok Kim, Hee Kwang Park, Kyung Seop Noh, Sang Eun An, In Sun Lee, Hye Kyung Lee, Sang Jin Jeon, Ra Yun Choi
  • Patent number: D948869
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: April 19, 2022
    Assignee: SOHHEE TRADING CO., LTD.
    Inventor: Hye Kyung Lee