Patents by Inventor Seong-Jun Lim

Seong-Jun 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).

  • Serial multi-cavity high pressure casting apparatus and high pressure casting method using the same
    Patent number: 11396042
    Abstract: A serial multi-cavity high pressure casting apparatus includes a three stage mold comprising a fixed mold, an operation mold, and a medium mold disposed between the fixed mold and the operation mold, a main sleeve penetrating a lower portion of the fixed mold, and having molten metal injected thereinto, a main runner formed to extend upward from the main sleeve, an auxiliary sleeve branched to both directions from the main runner, an auxiliary runner formed to extend upward from each of both ends of the auxiliary sleeve and connected to each of a first cavity formed between the fixed mold and the medium mold, and a second cavity formed between the medium mold and the operation mold, and a sleeve core disposed on a lower portion of the medium mold, and having the main sleeve, the main runner, and the auxiliary sleeve inserted thereinto.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: July 26, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Cheol-Ung Lee, Ji-Yong Lee, Dae-Ho Lee, Seong-Jun Lim, Hyo-Moon Joo, Cheon-Hee Kim, Sung-Hyun Kwon, Yoon-Ki Lee