Patents by Inventor Ruey-Kai Hu

Ruey-Kai Hu 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).

  • Hydrophilic magnetic metal oxide nanoparticles and preparing method thereof
    Patent number: 7175909
    Abstract: A water-soluble polymer is used to change surfaces of the magnetic metal oxide nanoparticles to hydrophilic surfaces. The hydrophilic magnetic metal s oxide nanoparticles can be stably dispersed in a water matrix. Then, the hydrophilic magnetic metal oxide nanoparticles are mixed with hydrophilic resin, and a nanometer-scale uniform size of nanoparticles is maintained.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: February 13, 2007
    Assignee: Taiwan Textile Research Institute
    Inventors: Ruey-Kai Hu, Hsien-Yi Chiu
  • Hydrophilic magnetic metal oxide nanoparticles and preparing method thereof
    Publication number: 20060081808
    Abstract: A water-soluble polymer is used to change surfaces of the magnetic metal oxide nanoparticles to hydrophilic surfaces. The hydrophilic magnetic metal s oxide nanoparticles can be stably dispersed in a water matrix. Then, the hydrophilic magnetic metal oxide nanoparticles are mixed with hydrophilic resin, and a nanometer-scale uniform size of nanoparticles is maintained.
    Type: Application
    Filed: January 19, 2005
    Publication date: April 20, 2006
    Inventors: Ruey-Kai Hu, Hsien-Yi Chiu