Patents Assigned to SJ Tech Co., Ltd.
  • Publication number: 20240123301
    Abstract: The present invention is a smart golf cart system, which relates to a smart golf cart system comprising: a golf cart including a driving module and a wireless communication module, which are configured to move according to a preset signal, and configured to load a user's golf equipment; an RTK GNSS module providing GNSS information including location information of the golf cart through communication with the wireless communication module; a GIS module including a library part in which map information of a golf course is stored in advance, wherein the map information is in the form of GIS information including altitude information; and a path calculation module for calculating the path of the golf cart, wherein the path calculation module receives GNSS information of the golf cart through the RTK GNSS module to calculate an initial path, generates an avoidance path based on the GIS information of the initial path provided from the GIS module to form a reference path, and controls the driving module depending
    Type: Application
    Filed: June 21, 2022
    Publication date: April 18, 2024
    Applicant: Sj Tech Co., Ltd
    Inventors: Hwan Cheol HWANG, Jae Hyeon JO, Yeohosua KIM
  • Patent number: 11807918
    Abstract: Disclosed are an aluminum alloy for a die casting and a method of producing an aluminum alloy casting product. The aluminum alloy may include silicon (Si) in an amount of about 7.5 to 9.5 wt %; magnesium (Mg) in an amount of about 2.5 to 3.5 wt %; iron (Fe) in an amount of about 0.5 to 1.0 wt %; manganese (Mn) in an amount of about 0.1 to 0.6 wt %; and aluminum (Al) constituting the remaining balance of the aluminum alloy, all the wt % are based on the total weight of the aluminum alloy.
    Type: Grant
    Filed: October 28, 2018
    Date of Patent: November 7, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, SJ Tech Co., Ltd.
    Inventors: Byong Soo Kim, Il Huh, Jung Mok Lee
  • Patent number: 11293080
    Abstract: Disclosed are a magnesium die casting alloy, and an alloy composition for improving thermal conductivity and electrical conductivity. A magnesium die casting alloy includes an amount of about 0.5 to 2.0 wt % of aluminum (Al) and the balance magnesium (Mg), based on the total weight of the magnesium die casting alloy. Accordingly, an alloy, which has high thermal conductivity and electrical conductivity as compared to a conventional AZ91D magnesium alloy, is obtained.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: April 5, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, SJ Tech Co., Ltd.
    Inventors: Byong-Soo Kim, Jung-Mok Lee, Dong-Keun Lee, Il Huh
  • Patent number: D976164
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: January 24, 2023
    Assignee: SJ TECH CO LTD.
    Inventor: Hwan Cheol Hwang