Patents by Inventor Sung-Man Cho

Sung-Man Cho 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: 11994652
    Abstract: A polarizing plate and an optical display including the same are provided. The polarizing plate is composed of a display region and a non-display region surrounding the display region, and includes: a polarizer; and a bonding layer and a first polarizer protective film sequentially stacked on an upper surface of the polarizer. A light shielding layer includes a UV absorbent material and is embedded in the bonding layer to constitute at least a portion of the non-display region. The light shielding layer is formed on at least one surface of the first polarizer protective film.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 28, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji Hyun Hwang, Yoo Jin Kim, Jin Woo Kim, Dong Yoon Shin, Bae Wook Lee, Sung Man Cho
  • Patent number: 11996554
    Abstract: A method for producing a high-nickel positive electrode active material, a positive electrode active material produced thereby, and a positive electrode and a lithium secondary battery including the same is provided. The method includes preparing a lithium composite transition metal oxide having a nickel content of 80 atm % or greater among transition metals, washing the lithium composite transition metal oxide, and mixing the washed lithium composite transition metal oxide with an aluminum raw material and heat treating the mixture at a temperature of 650° C. to 690° C. to obtain a positive electrode active material having a surface portion doped with aluminum.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: May 28, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Jin Tae Hwang, Dong Hun Lee, Sung Bin Park, Hyung Man Cho, Jung Min Han, Wang Mo Jung
  • Publication number: 20240128502
    Abstract: An embodiment solid electrolyte includes a first compound and a second compound. The first compound is represented by a first chemical formula Li7-aPS6-a(X11-bX2b)a, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, and wherein 0<a?2 and 0<b<1, and the second compound is represented by a second chemical formula Li7-cP1-2dMdS6-c-3d(X11-eX2e)c, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, wherein M represents Ge, Si, Sn, or any combination thereof, and wherein 0<c?2, 0<d<0.5, and 0<e<1.
    Type: Application
    Filed: August 14, 2023
    Publication date: April 18, 2024
    Inventors: Sa Heum Kim, Yong Jun Jang, Yong Gu Kim, Sung Man Cho, Sun Ho Choi, Seong Hyeon Choi, Kyu Sung Park, Young Gyoon Ryu, Suk Gi Hong, Pil Sang Yun, Myeong Ju Ha, Hyun Beom Kim, Hwi Chul Yang
  • Publication number: 20240053523
    Abstract: A polarizing plate and an optical display apparatus including the same are disclosed. A polarizing plate includes a polarizer and a protective film formed on a surface of the polarizer, wherein the polarizer has a thickness of 10 ?m or less and the polarizing plate has a coefficient of thermal expansion (CTE) of 100 ?m/(m·° C.) or less, as measured in a machine direction of the polarizer after application of heat shock conditions.
    Type: Application
    Filed: July 17, 2023
    Publication date: February 15, 2024
    Inventors: Sung Man CHO, Seung Jun LEE, Seon Oh HWANG, Kwang Ho SHIN, Han Saem KANG, Do Won KIM
  • Publication number: 20230369654
    Abstract: Disclosed are an all-solid-state battery having high capacity and excellent durability and a method for manufacturing the same. The method includes preparing a first solid electrolyte part including a first transfer film layer and a first layer disposed on the first transfer film layer and including a first solid electrolyte, preparing a second solid electrolyte part including a second transfer film layer and a second layer disposed on the second transfer film layer and including a second solid electrolyte, forming a first solid electrolyte layer on a cathode part by transferring the first layer onto the cathode part, forming a second solid electrolyte layer on an anode part by transferring the second layer onto the anode part, and preparing a stack by stacking the first solid electrolyte layer and the second solid electrolyte layer so as to come into contact with each other.
    Type: Application
    Filed: November 28, 2022
    Publication date: November 16, 2023
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Sung Man Cho, Young Jin Nam, Hong Suk Choi, Seon Hwa Kim, Hee Soo Kang, Jae Min Lim, Sang Wan Kim
  • Patent number: 11698476
    Abstract: A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes a polarizer and a protective film stacked on at least one surface of the polarizer, and the polarizer includes a hydrophobic polyvinyl alcohol resin, the polarizer has a surface roughness (Ra) of about 10 nm or less on a surface thereof facing the protective film, and the polarizing plate has a maximum metal ion-infiltration length of about 400 ?m or less between the polarizer and the protective film when metal powder-containing pastes are deposited on a surface of the polarizing plate in a thickness direction thereof and left at 60° C. and 95% relative humidity (RH) for 240 hours.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: July 11, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Do Won Kim, Han Saem Kang, Kwang Ho Shin, Sung Man Cho, Eun Sol Cho, Seon Oh Hwang
  • Publication number: 20230207828
    Abstract: Disclosed is an all-solid-state battery having a uniformly deposited or grown lithium layer, thereby having excellent durability.
    Type: Application
    Filed: November 19, 2022
    Publication date: June 29, 2023
    Inventors: Jae Min Lim, Hong Suk Choi, Sung Man Cho, Seon Hwa Kim, Young Jin Nam, Sang Wan Kim
  • Publication number: 20230178715
    Abstract: Provided are a lithium secondary battery having high durability and a method for manufacturing the same. The lithium secondary battery includes a reinforcing layer positioned on the outside of at least one of a negative electrode current collector and a positive electrode current collector and including a matrix containing a polymer and a thermally conductive filler dispersed in the matrix.
    Type: Application
    Filed: November 13, 2022
    Publication date: June 8, 2023
    Inventors: Young Jin Nam, Hong Suk Choi, Sang Wan Kim, Seon Hwa Kim, Hee Soo Kang, Jae Min Lim, Sung Man Cho
  • Publication number: 20230091995
    Abstract: Provided are a polarizer comprising a polyvinyl alcohol-based film and having an endothermic peak of 50° C. to 60° C. when measured by differential scanning calorimetry at a temperature increase rate of 10° C./min; a polarizing plate comprising a polarizer and a first protective film and a second protective film laminated on one surface and the other surface of the polarizer, respectively, and having an initial shrinkage initiation temperature greater than 70° C. and less than or equal to 90° C. during thermomechanical analysis; and an optical display device comprising same.
    Type: Application
    Filed: February 8, 2021
    Publication date: March 23, 2023
    Inventors: Do Won KIM, Han Saem KANG, Mun Bo KO, Sung Man CHO, Ki Yong KIM, Eun Sol CHO
  • Publication number: 20230058012
    Abstract: Disclosed are an all-solid-state battery that may have uniform deposition of lithium and have excellent durability, and a method of manufacturing the same.
    Type: Application
    Filed: August 8, 2022
    Publication date: February 23, 2023
    Inventors: Jae Min Lim, Hong Suk Choi, Sung Man Cho, Seon Hwa Kim, Young Jin Nam, Sang Wan Kim
  • Patent number: 11573358
    Abstract: A polarizing plate and an optical display comprising the same are disclosed. The polarizing plate includes: a polarizer and a first protective layer stacked on one surface of the polarizer via a bonding layer, wherein the bonding layer is formed of a bonding layer composition including an epoxy compound and a photocationic initiator, and the polarizing plate has a chrominance variation ?E of 5.2 or less, as calculated by Equation 1.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: February 7, 2023
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung Man Cho, Yeon Ju Na, Eun Sol Cho, Mun Bo Ko, Ki Yong Kim
  • Publication number: 20220195081
    Abstract: A polarizing plate and an optical display device comprising the same are disclosed. The polarizing plate includes a polarizer comprising a zinc cation and a unit represented by the Formula 1, and the polarizing plate has a chrominance variation ?E of about 5.
    Type: Application
    Filed: March 3, 2020
    Publication date: June 23, 2022
    Inventors: Sung Man CHO, Mun Bo KO, Ki Yong KIM, Yeon Ju NA, Eun Sol CHO
  • Publication number: 20220181700
    Abstract: An all solid state battery includes a cathode active material layer disposed in contact with a predetermined area of a cathode current collector, a solid electrolyte layer disposed on the cathode active material layer, and including a central part disposed on the cathode active material layer based on a stack direction of the all solid state battery, and a peripheral part extending from the central part and contacting the cathode current collector while surrounding side surfaces of the cathode active material layer, an anode layer disposed on the solid electrolyte layer and having an area greater than an area of the cathode active material layer but less than an area of the solid electrolyte layer, and a spacer disposed on the solid electrolyte layer and in contact with side surfaces of the anode layer.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 9, 2022
    Inventors: Sang Wan Kim, Young Jin Nam, Sung Man Cho, Jae Min Lim, Hong Suk Choi
  • Publication number: 20220043188
    Abstract: A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes a polarizer and a protective film stacked on at least one surface of the polarizer, and the polarizer includes a hydrophobic polyvinyl alcohol resin, the polarizer has a surface roughness (Ra) of about 10 nm or less on a surface thereof facing the protective film, and the polarizing plate has a maximum metal ion-infiltration length of about 400 ?m or less between the polarizer and the protective film when metal powder-containing pastes are deposited on a surface of the polarizing plate in a thickness direction thereof and left at 60° C. and 95% relative humidity (RH) for 240 hours.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 10, 2022
    Inventors: Do Won KIM, Han Saem KANG, Kwang Ho SHIN, Sung Man CHO, Eun Sol CHO, Seon Oh HWANG
  • Patent number: 10908337
    Abstract: A polarizing plate and an optical display comprising the same. The polarizing plate includes a polarizer; and a bonding layer and a first polarizer protective film sequentially stacked on a lower surface of the polarizer, wherein the first polarizer protective film includes a light shielding layer formed in at least some region on an upper surface thereof and the light shielding layer is composed of at least one printed pattern, the printed pattern being composed of a single printed layer or multiple printed layers and having a first plane formed at a top portion thereof and an inclined angle ? of greater than about 0° to about 85° or less, the inclined angle being defined between the first polarizer protective film and an imaginary line I-II connecting one distal end point I of the first plane at the top portion of the printed pattern to a point II disposed on an outer peripheral surface of the printed pattern adjoining the first polarizer protective film and closest to the distal end point I.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: February 2, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yoo Jin Kim, Jin Woo Kim, Dong Yoon Shin, Bae Wook Lee, Sung Man Cho, Ji Hyun Hwang
  • Patent number: 10799955
    Abstract: In a method of manufacturing metal powders in a continuous type, metal is heated at a temperature greater than a melting point to form a liquid phase metal, and the liquid phase metal and an emulsion carrier, which is emulsified without reacting with the liquid phase metal, are supplied into a container, and the liquid phase metal and the emulsion carrier are emulsified through Taylor flow to form an emulsion solution. The emulsion solution is discharged from the container, and then, the emulsion solution is cooled at a temperature smaller than the melting point to selectively solidifying the liquid phase metal in the emulsion solution to form the metal powders.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: October 13, 2020
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Woo Young Yoon, Jun Kyu Lee, Sung Man Cho
  • Publication number: 20200278484
    Abstract: A polarizing plate and an optical display comprising the same are disclosed. The polarizing plate includes: a polarizer and a first protective layer stacked on one surface of the polarizer via a bonding layer, wherein the bonding layer is formed of a bonding layer composition including an epoxy compound and a photocationic initiator, and the polarizing plate has a chrominance variation ?E of 5.2 or less, as calculated by Equation 1.
    Type: Application
    Filed: October 22, 2018
    Publication date: September 3, 2020
    Inventors: Sung Man CHO, Yeon Ju NA, Eun Sol CHO, Mun Bo KO, Ki Yong KIM
  • Publication number: 20190204479
    Abstract: A polarizing plate and an optical display including the same are provided. The polarizing plate is composed of a display region and a non-display region surrounding the display region, and includes: a polarizer; and a bonding layer and a first polarizer protective film sequentially stacked on an upper surface of the polarizer. A light shielding layer includes a UV absorbent material and is embedded in the bonding layer to constitute at least a portion of the non-display region. The light shielding layer is formed on at least one surface of the first polarizer protective film.
    Type: Application
    Filed: November 29, 2018
    Publication date: July 4, 2019
    Inventors: Ji Hyun HWANG, Yoo Jin KIM, Jin Woo KIM, Dong Yoon SHIN, Bae Wook LEE, Sung Man CHO
  • Publication number: 20190196078
    Abstract: A polarizing plate and an optical display comprising the same. The polarizing plate includes a polarizer; and a bonding layer and a first polarizer protective film sequentially stacked on a lower surface of the polarizer, wherein the first polarizer protective film includes a light shielding layer formed in at least some region on an upper surface thereof and the light shielding layer is composed of at least one printed pattern, the printed pattern being composed of a single printed layer or multiple printed layers and having a first plane formed at a top portion thereof and an inclined angle ? of greater than about 0° to about 85° or less, the inclined angle being defined between the first polarizer protective film and an imaginary line I-II connecting one distal end point I of the first plane at the top portion of the printed pattern to a point II disposed on an outer peripheral surface of the printed pattern adjoining the first polarizer protective film and closest to the distal end point I.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 27, 2019
    Inventors: Yoo Jin Kim, Jin Woo Kim, Dong Yoon Shin, Bae Wook Lee, Sung Man Cho, Ji Hyun Hwang
  • Publication number: 20180079008
    Abstract: In a method of manufacturing metal powders in a continuous type, metal is heated at a temperature greater than a melting point to form a liquid phase metal, and the liquid phase metal and an emulsion carrier, which is emulsified without reacting with the liquid phase metal, are supplied into a container, and the liquid phase metal and the emulsion carrier are emulsified through Taylor flow to form an emulsion solution. The emulsion solution is discharged from the container, and then, the emulsion solution is cooled at a temperature smaller than the melting point to selectively solidifying the liquid phase metal in the emulsion solution to form the metal powders.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Woo Young YOON, Jun Kyu LEE, Sung man CHO