Patents by Inventor Goonhee Lee

Goonhee Lee 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).

  • Method and apparatus for die casting of parts
    Patent number: 7971628
    Abstract: A cold-chamber die-casting apparatus and method for making a die-cast part with an open space within the geometry of the part. The apparatus includes an injection shaft which receives molten material for casting the part. The molten material is pushed with a plunger through a gate and into a tool cavity corresponding to the part. The gate is disposed at an end of the injection shaft and adjacent the tool cavity at a position that corresponds to the open space of the part and is inside the geometry of the part.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: July 5, 2011
    Assignee: Interplex NAS, Inc.
    Inventors: Goonhee Lee, Bonggee Lee
  • METHOD AND APPARATUS FOR DIE CASTING OF PARTS
    Publication number: 20090017324
    Abstract: A cold-chamber die-casting apparatus and method for making a die-cast part with an open space within the geometry of the part. The apparatus includes an injection shaft which receives molten material for casting the part. The molten material is pushed with a plunger through a gate and into a tool cavity corresponding to the part. The gate is disposed at an end of the injection shaft and adjacent the tool cavity at a position that corresponds to the open space of the part and is inside the geometry of the part.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Applicant: Interplex NAS, Inc.
    Inventors: Goonhee Lee, Bonggee Lee
  • Method and system for fabricating artificial bone implants
    Publication number: 20030069638
    Abstract: A process for making bone implants from calcium phosphate powders is disclosed. This process involves selectively fusing layers of calcium powders that have been coated or mixed with polymer binders. The calcium powder mixture may be foamed into layers and the polymer fused with a laser. Complex three-dimensional geometrical shapes can be automatically replicated or modified using this approach.
    Type: Application
    Filed: September 26, 2002
    Publication date: April 10, 2003
    Inventors: Joel W. Barlow, Goonhee Lee, Richard H. Crawford, Joseph J. Beaman, Harris L. Marcus, Richard J. Lagow
  • Artificial bone implants
    Patent number: 6540784
    Abstract: A process for making bone implants from calcium phosphate powders is disclosed. This process involves selectively fusing layers of calcium powders that have been coated or mixed with polymer binders. The calcium powder mixture may be formed into layers and the polymer fused with a laser. Complex three-dimensional geometrical shapes can be automatically replicated or modified using this approach.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: April 1, 2003
    Assignee: Board of Regents, The University of Texas System
    Inventors: Joel W. Barlow, Goonhee Lee, Richard H. Crawford, Joseph J. Beaman, Harris L. Marcus, Richard J Lagow
  • Artificial bone implants
    Patent number: 6183515
    Abstract: A process for making bone implants from calcium phosphate powders is disclosed. This process involves selectively fusing layers of calcium powders that have been coated or mixed with polymer binders. The calcium powder mixture may be formed into layers and the polymer fused with a laser. Complex three-dimensional geometrical shapes can be automatically replicated or modified using this approach.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: February 6, 2001
    Assignee: Board of Regents, The University of Texas System
    Inventors: Joel W. Barlow, Goonhee Lee, Richard H. Crawford, Joseph J. Beaman, Harris L. Marcus, Richard J. Lagow
  • Method for fabricating artificial bone implant green parts
    Patent number: 5639402
    Abstract: Bone implants are made from calcium phosphate powders by selectively fusing layers of calcium powders that have been coated or mixed with polymer binders. The calcium powder mixture may be formed into layers and the polymer fused with a laser. Complex three-dimensional geometrical shapes can be automatically replicated or modified using this approach.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: June 17, 1997
    Inventors: Joel W. Barlow, Goonhee Lee, Richard H. Crawford, Joseph J. Beaman, Harris L. Marcus, Richard J. Lagow