Patents by Inventor Ki Hyun Chang

Ki Hyun Chang 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).

  • Apparatus and method for extracting a silicon ingot made by an electromagnetic continuous casting method
    Patent number: 9017478
    Abstract: Provided are an apparatus and method of extracting a silicon ingot. The apparatus for extracting a silicon ingot includes a chamber in which a silicon source material introduced into a cold crucible is melted, a primary extraction apparatus vertically movably installed in the chamber and configured to solidify the molten silicon to extract the silicon ingot, a movable apparatus configured to horizontally move the primary extraction apparatus, and a secondary extraction apparatus vertically movably installed under the chamber and configured to extract the silicon ingot in a state in which the primary extraction apparatus is moved to one side. Therefore, as the height of the extraction apparatus is reduced, manufacturing cost of equipment can be reduced and installation space of the extraction apparatus can also be reduced.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: April 28, 2015
    Assignee: KCC Corporation
    Inventors: Ki Hyun Chang, Dong Hyun Nam
  • APPARATUS AND METHOD FOR EXTRACTING A SILICON INGOT
    Publication number: 20120240635
    Abstract: Provided are an apparatus and method of extracting a silicon ingot. The apparatus for extracting a silicon ingot includes a chamber in which a silicon source material introduced into a cold crucible is melted, a primary extraction apparatus vertically movably installed in the chamber and configured to solidify the molten silicon to extract the silicon ingot, a movable apparatus configured to horizontally move the primary extraction apparatus, and a secondary extraction apparatus vertically movably installed under the chamber and configured to extract the silicon ingot in a state in which the primary extraction apparatus is moved to one side. Therefore, as the height of the extraction apparatus is reduced, manufacturing cost of equipment can be reduced and installation space of the extraction apparatus can also be reduced.
    Type: Application
    Filed: December 14, 2010
    Publication date: September 27, 2012
    Applicant: KCC CORPORATION
    Inventors: Ki Hyun Chang, Dong Hyun Nam