Patents by Inventor Keunsik CHOI

Keunsik CHOI 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: 20200215752
    Abstract: A three-dimensional (3D) printer including a floating solution for reducing resin usage may include a main frame, a water tank disposed inside the main frame, a build platform slidable in a vertical direction along the water tank, an optical assembly disposed at an upper portion of the main frame and irradiating a laser beam to the build platform, resin contained inside the water tank, and the floating solution contained inside the water tank, wherein the floating solution is not mixed with the resin, has a higher density than the resin, and supports the resin.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 9, 2020
    Inventors: Keunsik CHOI, Kangwook LEE, Seongmin KANG, Seongsu YOO