Patents by Inventor Ha Young LIM

Ha Young LIM 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).

  • Method of characterizing errors in NAND flash memory, and error estimation method and storage system control method using the same
    Patent number: 12158808
    Abstract: A method of characterizing an error in a NAND flash memory, and an error estimation method and a storage system control method using the same are provided. The method of characterizing an error in a NAND flash memory characterizes an error source of the NAND flash memory using a center distance between one pattern and another pattern among a plurality of patterns in a threshold voltage distribution of NAND flash memory cells as a parameter.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: December 3, 2024
    Assignee: FADU Inc.
    Inventors: Sung Gil Hong, Ha Young Lim, Ji Yoon Jung, Do Hee Kim
  • METHOD OF CHARACTERIZING ERRORS IN NAND FLASH MEMORY, AND ERROR ESTIMATION METHOD AND STORAGE SYSTEM CONTROL METHOD USING THE SAME
    Publication number: 20230297471
    Abstract: A method of characterizing an error in a NAND flash memory, and an error estimation method and a storage system control method using the same are provided. The method of characterizing an error in a NAND flash memory characterizes an error source of the NAND flash memory using a center distance between one pattern and another pattern among a plurality of patterns in a threshold voltage distribution of NAND flash memory cells as a parameter.
    Type: Application
    Filed: January 5, 2023
    Publication date: September 21, 2023
    Applicant: FADU Inc.
    Inventors: Sung Gil HONG, Ha Young LIM, Ji Yoon JUNG, Do Hee KIM
  • Anode active material, preparation method therefor, and nonaqueous lithium secondary battery comprising same anode active material, and preparation method therefor
    Patent number: 11522196
    Abstract: The present invention relates to an anode active material, a nonaqueous lithium secondary battery comprising the same, and a preparation method therefor, and the purpose of the present invention is to improve high-rate charging characteristics without deterioration of charging and discharging efficiency and lifetime characteristics when applying an amorphous carbon coating layer as the anode active material of the nonaqueous lithium secondary battery, wherein the amorphous carbon coating layer comprising MoPx particles composed of MoP and MoP2 is formed on the surface of a carbon-based material, thereby reducing resistance when intercalating lithium ions into the surface of the carbon-based material, and improving reactivity and structural stability of the surface. The anode active material according to the present invention comprises a carbon-based material, and an amorphous carbon coating layer comprising MoPx particles composed of MoP and MoP2 formed on the surface of the carbon-based material.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: December 6, 2022
    Assignees: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE, UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Sang Min Lee, Min Sik Park, Gum Jae Park, Ha Young Lim, Jeong Hee Choi
  • ANODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, AND NONAQUEOUS LITHIUM SECONDARY BATTERY COMPRISING SAME ANODE ACTIVE MATERIAL, AND PREPARATION METHOD THEREFOR
    Publication number: 20200395617
    Abstract: The present invention relates to an anode active material, a nonaqueous lithium secondary battery comprising the same, and a preparation method therefor, and the purpose of the present invention is to improve high-rate charging characteristics without deterioration of charging and discharging efficiency and lifetime characteristics when applying an amorphous carbon coating layer as the anode active material of the nonaqueous lithium secondary battery, wherein the amorphous carbon coating layer comprising MoPx particles composed of MoP and MoP2 is formed on the surface of a carbon-based material, thereby reducing resistance when intercalating lithium ions into the surface of the carbon-based material, and improving reactivity and structural stability of the surface. The anode active material according to the present invention comprises a carbon-based material, and an amorphous carbon coating layer comprising MoPx particles composed of MoP and MoP2 formed on the surface of the carbon-based material.
    Type: Application
    Filed: November 14, 2018
    Publication date: December 17, 2020
    Inventors: Sang Min LEE, Min Sik PARK, Gum Jae PARK, Ha Young LIM, Jeong Hee CHOI