Patents by Inventor Cheol Han LEE

Cheol Han 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).

  • Publication number: 20250121430
    Abstract: A method of manufacturing a vehicle chassis part capable of increasing bonding strength between a cast material and an extruded material forming the chassis part is proposed. The method includes: forming a pattern portion for bonding to a cast material on an outer surface of an extruded material; inserting and fixing the extruded material into which the pattern portion is formed, in a mold for molding the cast material; and injecting molten metal for molding the cast material into the mold to form the cast material. A portion of the cast material overlaps the pattern portion of the extruded material to be formed integrally therewith.
    Type: Application
    Filed: July 19, 2024
    Publication date: April 17, 2025
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Cheol Ung Lee, Yoon Ki Lee, Ju Han Lee
  • Publication number: 20250044463
    Abstract: The present disclosure provides a location information acquisition method of a computing device, including the steps of: acquiring first location information at which an electro-optical topographic surveying device is located in response to a received satellite Global Navigation Satellite System (GNSS) signal; acquiring photography information for positioning of a target object photographed by a drone while the drone is flying in a GNSS shadow area from the drone equipped with a survey prism that reflects light waves from the surveying device; calculating absolute coordinates of the target object corresponding to the surveying device based on reflective metering of the survey prism and the photography information for positioning; and calculating GNSS based second location information as location information of the target object using the absolute coordinates and the first location information.
    Type: Application
    Filed: July 17, 2024
    Publication date: February 6, 2025
    Inventors: Seong Sam Kim, Jae-Wook Seok, Yong-Han Jung, Eon-taek Lim, Seul Koo, Cheol-Kyu Lee
  • Publication number: 20250033432
    Abstract: An embodiment provides an air conditioner for a vehicle, the air conditioner including an air conditioning unit having a heat exchanger disposed therein, and a blower unit configured to supply air to the air conditioning unit, in which the blower unit includes a blower casing having an inner surface, and a blower configured to allow the air to flow toward the inner surface, in which the inner surface includes a first surface, and a second surface disposed on the first surface and inclined, and in which the first and second surfaces divide a direction of the air, which is allowed to flow by the blower, into at least two directions. Therefore, the air conditioner for a vehicle may improve performance and quality of the blower unit.
    Type: Application
    Filed: September 8, 2022
    Publication date: January 30, 2025
    Applicant: Hanon Systems
    Inventors: Seung Ho LEE, Seo Jun YOON, Sang Ki LEE, Chang Sun PARK, Cheol Han JANG, Yong Sik KIM
  • Patent number: 11453775
    Abstract: Disclosed are: a thermoplastic elastomer resin composition comprising a thermoplastic elastomer resin and, as a reactive additive, a compound containing one or more isocyanurate functional groups; a molded product comprising the same.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 27, 2022
    Assignee: SAMYANG CORPORATION
    Inventors: Jae-Kwan Kwon, Jin Yoo, Cheol-Han Lee, Yong-Chan Lim, Sang-Hyun Park
  • Patent number: 10995212
    Abstract: The present invention relates to a thermoplastic polyether ester elastomer (TPEE) having a hard segment and a soft segment and a method for preparing the same and, more specifically, to a thermoplastic polyether ester elastomer and a method for preparing the same, wherein a unit derived from an anhydrosugar alcohol derivative with improved reactivity derived from biomass is contained in the soft segment, and thus through the adjustment of the content of the anhydrosugar alcohol derivative, elastic characteristics and physical characteristics (for example, hardness, etc.), which are important characteristics of an elastomer, can be favorably maintained, the melting point variously required in the molding process of a final product can be easily controlled, a problem of depletion of, especially, petroleum resources as finite resources, can be solved, and environmental friendliness can be improved.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: May 4, 2021
    Assignee: SAMYANG CORPORATION
    Inventors: Min Sun Lee, Mi Ran Kim, Yun Ju Chang, Jae Kwan Kwon, Cheol Han Lee, Young Do Kwon
  • Publication number: 20210061991
    Abstract: Disclosed are: a thermoplastic elastomer resin composition comprising a thermoplastic elastomer resin and, as a reactive additive, a compound containing one or more isocyanurate functional groups; a molded product comprising the same.
    Type: Application
    Filed: December 27, 2018
    Publication date: March 4, 2021
    Applicant: SAMYANG CORPORATION
    Inventors: Jae-Kwan KWON, Jin YOO, Cheol-Han LEE, Yong-Chan LIM, Sang-Hyun PARK
  • Publication number: 20200071518
    Abstract: The present invention relates to a thermoplastic polyether ester elastomer (TPEE) having a hard segment and a soft segment and a method for preparing the same and, more specifically, to a thermoplastic polyether ester elastomer and a method for preparing the same, wherein a unit derived from an anhydrosugar alcohol derivative with improved reactivity derived from biomass is contained in the soft segment, and thus through the adjustment of the content of the anhydrosugar alcohol derivative, elastic characteristics and physical characteristics (for example, hardness, etc.), which are important characteristics of an elastomer, can be favorably maintained, the melting point variously required in the molding process of a final product can be easily controlled, a problem of depletion of, especially, petroleum resources as finite resources, can be solved, and environmental friendliness can be improved.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 5, 2020
    Applicant: SAMYANG CORPORATION
    Inventors: Min Sun LEE, Mi Ran KIM, Yun Ju CHANG, Jae Kwan KWON, Cheol Han LEE, Young Do KWON