Patents by Inventor Bum Ha Cha

Bum Ha Cha 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 Preparing Nano-Sized Metal Powder Feedstock and Method for Producing Sintered Body Using the Feedstock
    Publication number: 20080286141
    Abstract: A method for preparing a nano-sized metal powder feedstock comprises the steps of preparing a nano-sized metal powder, mixing the metal powder with a solution of an organic binder in a solvent, and wet-milling the mixture so that aggregates of the metal powder are uniformly formed. Further disclosed is a method for producing a sintered body using the feedstock.
    Type: Application
    Filed: July 22, 2005
    Publication date: November 20, 2008
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Jai Sung Lee, Yun Sung Kang, Bum Ha Cha