Patents by Inventor Hak-Eui Wang

Hak-Eui Wang 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).

  • Single crystal ingot, apparatus and method for manufacturing the same
    Patent number: 9534314
    Abstract: Disclosed is a single-crystal ingot manufacturing apparatus, which includes a crucible in which a melt is accommodated, a heater configured to heat the crucible, a heat shield member configured to shield radiant heat from the heater and the melt, and a neck cover configured to encompass a seed crystal unit above the crucible with being introduced into an opening of the heat shield member, the radiant heat being not shielded in the opening, the neck cover being vertically moved in linkage to vertical movement of the seed crystal unit within a predetermined range.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: January 3, 2017
    Assignee: LG SILTRON INCORPORATED
    Inventors: Il Soo Choi, Jin Woo Ahn, Hak Eui Wang, Yong Jin Kim
  • SINGLE-CRYSTAL INGOT, APPARATUS AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20140205837
    Abstract: Disclosed is a single-crystal ingot manufacturing apparatus, which includes a crucible in which a melt is accommodated, a heater configured to heat the crucible, a heat shield member configured to shield radiant heat from the heater and the melt, and a neck cover configured to encompass a seed crystal unit above the crucible with being introduced into an opening of the heat shield member, the radiant heat being not shielded in the opening, the neck cover being vertically moved in linkage to vertical movement of the seed crystal unit within a predetermined range.
    Type: Application
    Filed: June 11, 2013
    Publication date: July 24, 2014
    Inventors: Il Soo CHOI, Jin Woo Ahn, Hak Eui Wang, Yong Jin Kim
  • SINGLE CRYSTAL COOLING APPARATUS AND SINGLE CRYSTAL GROWER INCLUDING THE SAME
    Publication number: 20120000416
    Abstract: Provided are a single crystal cooling apparatus and a single crystal grower including the same. The single crystal cooling apparatus includes an upper flange having a circular shape and a lower flange extending downward from the upper flange, the lower flange having a diameter less than that of the upper flange.
    Type: Application
    Filed: March 2, 2011
    Publication date: January 5, 2012
    Inventors: Hak-Eui Wang, Gwang-Ha Na