Patents by Inventor Sang Yul Lee

Sang Yul 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).

  • Method of preparing high-purity lithium difluorophosphate crystal and non-aqueous electrolyte solution for secondary battery including the crystal
    Patent number: 11225417
    Abstract: The present invention relates to a method of preparing a lithium difluorophosphate crystal. More particularly, the present invention relates to a method of preparing a high-purity lithium difluorophosphate crystal at a high yield, and the high-purity lithium difluorophosphate crystal prepared by the method can be used for various purposes.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: January 18, 2022
    Assignee: Chun Bo., Ltd
    Inventors: Sang Yul Lee, Kyoung Cheol Kim, Kyoung Hwan Kim, Ji Ung Jeon, Su Cheol Park
  • Method of preparing high-purity lithium difluorophosphate crystal and non-aqueous electrolyte solution for secondary battery including the crystal
    Patent number: 11148949
    Abstract: The present invention relates to a method of preparing a lithium difluorophosphate crystal. More particularly, the present invention relates to a method of preparing a high-purity lithium difluorophosphate crystal at a high yield, and the high-purity lithium difluorophosphate crystal prepared by the method can be used for various purposes.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 19, 2021
    Assignee: Chun Bo., Ltd
    Inventors: Sang Yul Lee, Kyoung Cheol Kim, Kyoung Hwan Kim, Ji Ung Jeon, Su Cheol Park
  • METHOD OF PREPARING HIGH-PURITY LITHIUM DIFLUOROPHOSPHATE CRYSTAL AND NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY INCLUDING THE CRYSTAL
    Publication number: 20210246027
    Abstract: The present invention relates to a method of preparing a lithium difluorophosphate crystal. More particularly, the present invention relates to a method of preparing a high-purity lithium difluorophosphate crystal at a high yield, and the high-purity lithium difluorophosphate crystal prepared by the method can be used for various purposes.
    Type: Application
    Filed: June 25, 2018
    Publication date: August 12, 2021
    Applicant: Chun Bo.,Ltd
    Inventors: Sang Yul LEE, Kyoung Cheol KIM, Kyoung Hwan KIM, Ji Ung JEON, Su Cheol PARK
  • METHOD OF PREPARING HIGH-PURITY LITHIUM DIFLUOROPHOSPHATE CRYSTAL AND NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY INCLUDING THE CRYSTAL
    Publication number: 20210246042
    Abstract: The present invention relates to a method of preparing a lithium difluorophosphate crystal. More particularly, the present invention relates to a method of preparing a high-purity lithium difluorophosphate crystal at a high yield, and the high-purity lithium difluorophosphate crystal prepared by the method can be used for various purposes.
    Type: Application
    Filed: June 25, 2018
    Publication date: August 12, 2021
    Applicant: Chun Bo., Ltd
    Inventors: Sang Yul LEE, Kyoung Cheol KIM, Kyoung Hwan KIM, Ji Ung JEON, Su Cheol PARK
  • LEAD PIN FOR PACKAGE SUBSTRATE AND SEMICONDUCTOR PACKAGE PRINTED CIRCUIT BOARD INCLUDING THE SAME
    Publication number: 20120153473
    Abstract: Disclosed herein is a lead pin for a package substrate including a connection pin, and a head part including a flange part formed at one end of the connection pin and having one surface bonded to the connection pin and a flat part formed at the other surface of the flange part and having at least one groove formed along an outer circumference thereof. According to the present invention, the grooves are formed along the outer circumference of the flat part of the head part of the lead pin to increase a bonding area, thereby making it possible to increase bonding strength of the lead pin.
    Type: Application
    Filed: March 11, 2011
    Publication date: June 21, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Sang Yul LEE
  • COOLING SYSTEM FOR A VEHICLE
    Publication number: 20090038562
    Abstract: Disclosed is a cooling system for a vehicle, in which coolant coolant, a blend of an antifreezing solution and water flowed into a radiator generates turbulent flow when a vehicle is in a state of a critical driving mode of a vehicle for example, a hill-climbing mode, thereby enhancing heat radiating performance and reducing pressure drop amount at the same time.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 12, 2009
    Applicant: HALLA CLIMATE CONTROL CORP.
    Inventors: Ho Chang Sim, Sun An Jeong, Gil Woong Jun, Byoung Sun Cho, Sang Yul Lee, Kwang Yong Jung
  • Multiflow type condenser for an air conditioner
    Patent number: 6062303
    Abstract: A multiflow type condenser for an automobile air conditioner comprising: a pair of header pipes disposed in parallel with each other and arranged to have an inlet and an outlet; a pluratlity of flat tubes each connected to said header pipes at opposite ends thereof, each of said flat tubes having a plurality of inside fluid paths, a hydraulic diameter of said inside fluid paths being in the range of about 1 to 1.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: May 16, 2000
    Assignee: Halla Climate Control Corp.
    Inventors: Yong Gwi Ahn, Sang Yul Lee, Seung Hwan Kim, Sang Ok Lee, Kwang Heon Oh, Yong Ho Kim