Patents by Inventor Da-hyun RYU

Da-hyun RYU 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: 20240194861
    Abstract: An anode active material for a secondary battery according to an embodiment of the disclosed technology includes an anode current collector, a first anode active material layer on at least one surface of the anode current collector and including a graphite-based active material and a silicon-based active material doped with a metal element, and a second anode active material layer on the first anode active material layer and including a porous structure. The porous structure includes a carbon-based particle having pores and a silicon-containing coating formed inside the pores or on a surface of the carbon-based particle.
    Type: Application
    Filed: December 7, 2023
    Publication date: June 13, 2024
    Inventors: Jun Hee HAN, Moon Sung KIM, Hyo Mi KIM, Sang Baek RYU, Seung Hyun YOOK, Hwan Ho JANG, Da Bin CHUNG, Da Hye PARK, Sang In BANG, Young Mo YANG, Ju Ho CHUNG
  • Publication number: 20240186485
    Abstract: An anode for a lithium secondary battery includes an anode current collector, and a first anode active material layer and a second anode active material layer sequentially stacked on at least one surface of the anode current collector. The first anode active material layer and the second anode active material layer includes a first silicon-based active material and a second silicon-based active material, respectively.
    Type: Application
    Filed: November 14, 2023
    Publication date: June 6, 2024
    Inventors: Da Hye PARK, Jun Hee HAN, Moon Sung KIM, Hyo Mi KIM, Sang Baek RYU, Seung Hyun YOOK, Hwan Ho JANG, Da Bin CHUNG, Sang In BANG
  • Publication number: 20240120465
    Abstract: An anode active material for a secondary battery includes a carbon-based active material, and silicon-based active material particles doped with magnesium. At least some of the silicon-based active material particles include pores, and a volume ratio of pores having a diameter of 50 nm or less among the pores is 2% or less based on a total volume of the silicon-based active material particles.
    Type: Application
    Filed: September 7, 2023
    Publication date: April 11, 2024
    Inventors: Hwan Ho JANG, Moon Sung KIM, Hyo Mi KIM, Sang Baek RYU, Da Hye PARK, Eun Jun PARK, Seung Hyun YOOK, Da Bin CHUNG, Jun Hee HAN
  • Publication number: 20240097104
    Abstract: The technology and implementations disclosed in this patent document generally relate to a lithium secondary battery including: a first unit cell including a first anode including a 1-1 anode mixture layer and a 1-2 anode mixture layer on the 1-1 anode mixture layer, and a second unit cell including a second anode including a 2-1 anode mixture layer and a 2-2 anode mixture layer on the 2-1 anode mixture layer, wherein a weight ratio of the silicon-based active material in the 1-2 anode mixture layer is greater than a weight ratio of the silicon-based active material in the 1-1 anode mixture layer, and a weight ratio of the silicon-based active material in the 2-2 anode mixture layer is less than or equal to a weight ratio of the silicon-based active material in the 2-1 anode mixture layer.
    Type: Application
    Filed: August 2, 2023
    Publication date: March 21, 2024
    Inventors: Jun Hee HAN, Moon Sung KIM, Hyo Mi KIM, Sang Baek RYU, Da Hye PARK, Sang In BANG, Seung Hyun YOOK, Hwan Ho JANG, Da Bin CHUNG
  • Patent number: 11929495
    Abstract: In some implementations, the anode includes a current collector, a first anode mixture layer formed on at least one surface of the current collector, and a second anode mixture layer formed on the first anode mixture layer. The first anode mixture layer and the second anode mixture layer include a carbon-based active material, respectively. The first anode mixture layer includes a first binder, a first silicon-based active material, and a first conductive material. The second anode mixture layer includes a second binder, a second silicon-based active material, and a second conductive material. Contents of the first conductive material and the second conductive material are different from each other with respect to the total combined weight of the first anode mixture layer and the second anode mixture layer. Types of the first silicon-based active material and the second silicon-based active material are different from each other.
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: March 12, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Hyo Mi Kim, Moon Sung Kim, Sang Baek Ryu, Da Hye Park, Seung Hyun Yook, Hwan Ho Jang, Kwang Ho Jeong, Da Bin Chung, Jun Hee Han
  • Patent number: 11929491
    Abstract: An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on at least one surface of the anode current collector. The anode active material layer includes a carbon-based active material, a first silicon-based active material doped with magnesium and a second silicon-based active material not doped with magnesium. A content of the first silicon-based active material is in a range from 2 wt % to 20 wt % based on a total weight of the anode active material layer.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: March 12, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Hwan Ho Jang, Moon Sung Kim, Hyo Mi Kim, Sang Baek Ryu, Da Hye Park, Seung Hyun Yook, Da Bin Chung, Jun Hee Han
  • Patent number: 11061533
    Abstract: A Large Format Display (LFD) apparatus is provided. The LFD apparatus may include: a display; a sensor configured to recognize a user that is present within a predetermined distance from the display; and a processor configured to acquire profile information of the user recognized through the sensor, determine a model and recommended clothes corresponding to the acquired profile information, and control the display to display the clothing wearing the recommended clothes.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: July 13, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hye-sun Kim, Ju-hee Seo, Moon-sik Jeong, Da-hyun Ryu, Seong-oh Lee
  • Publication number: 20170053158
    Abstract: A Large Format Display (LFD) apparatus is provided. The LFD apparatus may include: a display; a sensor configured to recognize a user that is present within a predetermined distance from the display; and a processor configured to acquire profile information of the user recognized through the sensor, determine a model and recommended clothes corresponding to the acquired profile information, and control the display to display the clothing wearing the recommended clothes.
    Type: Application
    Filed: February 8, 2016
    Publication date: February 23, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hye-sun KIM, Ju-hee SEO, Moon-sik JEONG, Da-hyun RYU, Seong-oh LEE