Patents by Inventor Young Whan Cho

Young Whan Cho 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 for Fabricating Magnesium-Based Hydrogen Storage Material
    Publication number: 20080111105
    Abstract: A method for fabricating a magnesium-based hydrogen storage material according to the present invention comprises a) forming a mixture of a magnesium hydride powder and a transition metal halide powder, b) adding the mixture and balls into a vessel, c) filling the vessel with an inert gas or hydrogen, and d) subjecting the mixture to high energy ball milling.
    Type: Application
    Filed: November 14, 2007
    Publication date: May 15, 2008
    Applicant: Korea Institute of Science and Technology
    Inventors: Jae-Hyeok Shim, Seon-Ah Jin, Young-Whan Cho
  • Method of fabricating ultra-fine cermet alloys with homogeneous solid grain structure
    Patent number: 7217390
    Abstract: The present invention relates to a method of fabricating ultra-fine grain cermet alloys with a homogenous solid solution grain structure. More particularly, the invention relates to a method of fabricating an ultra-fine TiC-base cermet alloy with a homogenous solid solution structure which does not comprise a core-rim structure in the carbide grain. The object of the present invention is to provide a method of fabricating a TiC-base cermet alloy without the core-rim structure. The above objects of the present invention could be achieved by employing a conventional sintering process (vacuum sintering) of (Ti,TM)C carbide obtained from a mechano-chemical synthesis (high energy ball-milling) from milling the powders of Ti, TM, Ni and Co metals.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: May 15, 2007
    Assignee: Korea Institute of Science and Technology
    Inventors: Jae Hyeok Shim, Jong Ku Park, Young Whan Cho