Patents by Inventor Joo Ro Kim

Joo Ro Kim 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).

  • Multilayer structure for a diamond growth and a method of providing the same
    Patent number: 9238875
    Abstract: A multi-layer structure in a reaction cell for a diamond growth is provided. The multi-layer structure includes: a diamond seed; a first metal catalyst layer provided on the diamond seed, the first metal catalyst layer containing a first concentration of carbon; a second metal catalyst layer provided on the first metal layer, the second metal catalyst layer containing a second concentration of carbon that is higher than the first concentration; and a carbon source layer provided on the second metal layer.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: January 19, 2016
    Assignee: Sunset Peak International Limited
    Inventors: Hexiang Zhu, Karl Pearson, Joo Ro Kim
  • STEP HEATING PROCESS FOR GROWING HIGH QUALITY DIAMOND
    Publication number: 20130160700
    Abstract: Disclosed is a method of growing a diamond, including the steps of providing a diamond seed in a reaction chamber; providing a protective layer above the diamond seed; providing a catalyst above the protective layer; providing a carbon source above the catalyst; applying pressure to the reaction chamber; heating the catalyst to a first temperature; holding the first temperature for a first duration; heating the catalyst to a second temperature; and holding the second temperature for a second duration.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 27, 2013
    Applicant: GEMESIS DIAMOND COMPANY
    Inventors: Joo Ro KIM, Hexiang ZHU, Karl PEARSON
  • Multilayer structure for a diamond growth and a method of providing the same
    Publication number: 20120192785
    Abstract: A multi-layer structure in a reaction cell for a diamond growth is provided. The multi-layer structure includes: a diamond seed; a first metal catalyst layer provided on the diamond seed, the first metal catalyst layer containing a first concentration of carbon; a second metal catalyst layer provided on the first metal layer, the second metal catalyst layer containing a second concentration of carbon that is higher than the first concentration; and a carbon source layer provided on the second metal layer.
    Type: Application
    Filed: February 1, 2011
    Publication date: August 2, 2012
    Applicant: GEMESIS DIAMOND COMPANY
    Inventors: Hexiang Zhu, Karl Pearson, Joo Ro Kim