Patents by Inventor Ki-Soo Lee

Ki-Soo 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: 11224103
    Abstract: An LED lighting apparatus includes a first LED light source and a second LED light source included in a first light source group; a third LED light source and a fourth LED light source included in a second light source group; a mode detection circuit configured to determine a mode; a current control unit for serial and parallel connection of the first light source group and the second light source group; balancing circuits for serial and parallel connection of the respective light source groups; and a current path providing circuit for providing current paths. The LED lighting apparatus performs light emission in various states depending on the change of a rectified voltage and the change of a mode.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: January 11, 2022
    Assignee: Silicon Works Co., Ltd.
    Inventors: Gyeong Sik Mun, Ki Soo Kwon, Sang Young Lee, Ki Chul An
  • Publication number: 20220005985
    Abstract: A display device includes a first light emitting element which overlaps a first light emitting region, and emits first color light, a first wavelength conversion pattern which overlaps the first light emitting element, and wavelength-converts the first color light into a second color light, and a first color filter which overlaps the first wavelength conversion pattern, and includes a first light absorbing colorant and a colorant of the second color, where the colorant of the second color blocks transmission of the first color light and transmits the second color light, where the colorant of the second color transmits light in a first overlapping wavelength range in which a first emission spectrum of the first wavelength conversion pattern overlaps a first light absorption spectrum of the first wavelength conversion pattern, and where the first light absorbing colorant absorbs the light in the first overlapping wavelength range.
    Type: Application
    Filed: March 8, 2021
    Publication date: January 6, 2022
    Inventors: Hyo Joon KIM, Jung Hyun KWON, Seon Tae YOON, Yun Ha RYU, Hye Seung LEE, Ki Soo PARK
  • Publication number: 20220006064
    Abstract: The present invention relates to electrode slurry coating apparatus and method, the present invention ultimately allowing the process efficiency to be increased and rate of errors to be reduced when double-layer structured active material layers are formed by temporally adjusting the height of first and second discharge outlets through which active material is discharged.
    Type: Application
    Filed: September 16, 2020
    Publication date: January 6, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Taek Soo Lee, Young Joon Jo, Sang Hoon Choy, Ki Tae Kim, Ji Hee Yoon, Cheol Woo Kim
  • Patent number: 11217031
    Abstract: An electronic device and its operating method according to various embodiments, may be configured to provide first content received from an external electronic device to a user waring the electronic device on his/her face using a display of the electronic device, identify a movement of an external object in a visible direction of the user see-through or using the display which provides the first content, and provide second content to the user through at least part of the display so as to display the second content related to the first content in relation to the external object according to the movement.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: January 4, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Thae Geol Lee, Hyun Soo Kwak, Yeon Hee Rho, Ki Huk Lee, Sung Hyo Jeong, Cheol Ho Cheong
  • Patent number: 11211102
    Abstract: A method of operating memory devices disposed in different ranks of a multi-rank memory device and sharing a signal line includes receiving, in all of the memory devices included in the multi-rank memory device, on-die termination (ODT) state information of the signal line. The method further includes storing, in each of the memory devices of the multi-rank memory device, the ODT state information of the signal line in a mode register. The method further includes generating, in each of the memory devices of the multi-rank memory device, a control signal based on the ODT state information of the signal line stored in the mode register. The method further includes changing, in each of the memory devices of the multi-rank memory device, an ODT setting of the signal line in response to the control signal.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: December 28, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-Sik Moon, Kyung-Soo Ha, Young-Soo Sohn, Ki-Seok Oh, Chang-Kyo Lee, Jin-Hoon Jang, Yeon-Kyu Choi, Seok-Hun Hyun
  • Publication number: 20210399278
    Abstract: The present invention relates to an electrode slurry coating device and method, wherein the heights of first and second slot die heads for discharging active material can be controlled according to time to improve process efficiency and reduce defect rates when forming an active material layer having a double layer structure.
    Type: Application
    Filed: October 6, 2020
    Publication date: December 23, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Taek Soo LEE, Sang Hoon CHOY, Ki Tae KIM, Cheol Woo KIM, Young Joon JO
  • Publication number: 20210340164
    Abstract: A transition metal compound having a novel structure is disclosed herein. The transition metal compound can have improved structural stability by forming a stable coordination site of a transition metal through controlling a bond angle formed by the amido group of a phenylene bridge, a cyclopentadienyl ring, and a transition metal. The transition metal compound has excellent copolymerization properties and may produce an olefin polymer having a high molecular weight in a ultra low density region.
    Type: Application
    Filed: December 10, 2019
    Publication date: November 4, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Young Shil Do, A Rim Kim, Yun Jin Lee, Ki Soo Lee, Choong Hoon Lee, Seung Hwan Jung
  • Patent number: 11091571
    Abstract: The present invention provides a hybrid supported catalyst capable of easily preparing an olefin polymer capable of having improved melt strength even while having appropriate molecular weight distribution, and thus having improved bubble stability and exhibiting excellent blown film processability, and a method for preparing an olefin polymer using the same.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: August 17, 2021
    Inventors: Sung Ho Park, Heon Yong Kwon, Hyun Jee Kwon, Jin Young Lee, Ki Soo Lee, Dae Sik Hong, Sol Cho, Oh Joo Kwon
  • Patent number: 11091569
    Abstract: The present disclosure relates to a method for preparing a supported hybrid metallocene catalyst, and the catalyst is prepared by supporting a first metallocene compound, supporting a cocatalyst by a separate-input method in which primarily adding a part at 100° C. to 150° C. and secondarily adding the rest at ?5° C. to 40° C., and then supporting a second metallocene compound, thereby improving a supporting rate of the cocatalyst in the supported catalyst and maintaining high catalytic activity. Therefore, the present disclosure can effectively prepare a polyolefin with improved processability which exhibits increased molecular weight distribution while having high morphology (reduced fine powder), high bulk density and improved settling efficiency.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: August 17, 2021
    Inventors: Hyun Jee Kwon, Seungmi Lee, Poeun Kim, Ki Soo Lee
  • Publication number: 20210238317
    Abstract: According to the present disclosure, a catalyst composition capable of preparing a polyolefin having excellent mechanical stability, while exhibiting excellent process stability and high polymerization activity during the preparation of a polyolefin in a slurry process, and a method for preparing a polyolefin using the same is provided.
    Type: Application
    Filed: February 20, 2020
    Publication date: August 5, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Seungmi Lee, Ki Soo Lee, Hyun Jee Kwon, Poeun Kim, Yongwoo Kwon
  • Publication number: 20210215661
    Abstract: The present invention relates to polypropylene non-woven fabric having excellent loft property, a method for preparing polypropylene non-woven fabric having excellent loft property, and a method for evaluating the properties of the polypropylene resin.
    Type: Application
    Filed: June 21, 2019
    Publication date: July 15, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Hyunsup Lee, Seong Min Chae, Kyung Seop Noh, Heekwang Park, Ki Soo Lee, Sangjin Jeon, Myunghan Lee
  • Publication number: 20210139331
    Abstract: The present invention relates to carbon nanotubes having a pore volume of 0.94 cm3/g or more, and being an entangled type, a method of manufacturing the same, and a positive electrode for a primary battery which comprises the same.
    Type: Application
    Filed: July 26, 2019
    Publication date: May 13, 2021
    Inventors: Kyung Yeon Kang, Hyun Joon Kang, Ki Soo Lee, Soon Ki Jeong
  • Publication number: 20210108066
    Abstract: A block copolymer composition is disclosed herein. In some embodiments, a block copolymer composition has a weight average molecular weight (Mw) of 70,000 g/mol to 120,000 g/mol, a polydispersity index (PDI) of 1.0 to 2.0, a glass transition temperature (Tg) of ?55° C. to ?30° C., and a melt index (MI), measured at 230° C. and a loading condition of 5 kg, of 0.2 g/10 minutes to 3.0 g/10 minutes. The block copolymer composition has excellent processability.
    Type: Application
    Filed: March 29, 2019
    Publication date: April 15, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Yoon Ki Hong, Seok Pil Sa, Hyun Mo Lee, Eun Ji Shin, Ki Soo Lee, Bun Yeoul Lee
  • Patent number: 10976229
    Abstract: The present invention relates to a method for predicting the break-up possibility of a synthetic resin filament in a melt blowing process from the rheological properties of the synthetic resin. According to the present invention, a method that is capable of predicting the break-up possibility of the synthetic resin filament in the melt blowing process for preparing a filament using the synthetic resin in advance, through the measurement of the rheological properties of the synthetic resin, is provided.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 13, 2021
    Inventors: Hyun Sup Lee, Ki Soo Lee, Sang Jin Jeon, Sang Eun An, Myung Han Lee, Hee Kwang Park, Sang Eun Kim, Sang Hoon Lee
  • Patent number: 10962522
    Abstract: The present invention relates to a method for predicting the physical properties of polymers. More specifically, the present invention relates to a method for predicting the processability of polymers using a molecular weight distribution curve.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: March 30, 2021
    Inventors: Yoon Ki Hong, Hyuck Ju Kwon, Eun Kyoung Song, Dae Sik Hong, Ye Jin Lee, Joong Soo Kim, Eun Young Shin, Young Suk You, Ki Soo Lee
  • Publication number: 20210087306
    Abstract: Provided are a novel metallocene-supported catalyst and a method of preparing a polyolefin using the same. The metallocene-supported catalyst according to the present disclosure may be used in the preparation of polyolefins, it may have excellent activity and excellent reactivity with comonomers, and it may prepare olefinic polymers having a high molecular weight and a low molecular weight.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Inventors: Eun Young SHIN, Heon Yong KWON, Se Young KIM, Hyun Jee KWON, Dae Sik HONG, Sung Min LEE, Ki Soo LEE
  • Publication number: 20210080437
    Abstract: A method for evaluating physical properties of a melt-blown plastic resin, and, more specifically, a novel method for evaluating physical properties are provided. When a particular plastic resin is processed by a melt-blown process, a stretching diameter value after the process of the plastic resin can be accurately derived from a physical property value measured using a specimen of the resin.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 18, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Hyunsup Lee, Seok Hwan Kim, Heekwang Park, Ki Soo Lee, SangJin Jeon, Myunghan Lee
  • Publication number: 20210080367
    Abstract: The present invention relates to a method for evaluating an injection physical property of a plastic resin, and a polyethylene resin suitable for an injection molding process and, more particularly, to a novel method for evaluating an injection physical property of a plastic resin, which, when a particular plastic resin is processed by an injection process, can accurately derive injection suitability of the plastic resin and injection pressure in the injection process through a physical property value measured by using a resin specimen, and a polyethylene resin suitable for injection molding.
    Type: Application
    Filed: August 21, 2018
    Publication date: March 18, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Hyunsup Lee, Sung Hyun Park, Soon Ho Sun, Yi Young Choi, Ki Soo Lee, Myung Han Lee
  • Patent number: 10947256
    Abstract: The present invention relates to a ligand compound, a catalyst system for olefin oligomerization and a method for oligomerizing an olefin using same. The catalyst system for olefin oligomerization according to the present invention exhibits high selectivity to 1-hexene or 1-octene while having excellent catalytic activity, thus enabling more efficient preparation of alpha-olefins.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: March 16, 2021
    Inventors: Seul Ki Im, Yong Ho Lee, Ki Soo Lee, Eun Ji Shin, Jin Young Park, Seok Pil Sa, Yoon Ki Hong
  • Publication number: 20210032449
    Abstract: The present invention relates to a polyethylene copolymer which has excellent processability and long-term durability, and thus is useful for hollow molding of a pipe or the like.
    Type: Application
    Filed: December 6, 2018
    Publication date: February 4, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Jongsang Park, Ki Soo Lee, Eun Kyoung Song, Daesik Hong, Ye Jin Lee, Joongsoo Kim, Eunyoung Shin, Youngsuk You, Jinyoung Kwak