Patents by Inventor Kimitaka Tanaka

Kimitaka Tanaka 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).

  • Hydrogel particles
    Patent number: 8222193
    Abstract: The present invention relates to hydrogel particles containing bubbles and having a specific gravity of 0.7 to 1.00 and an average particle diameter of 50 to 500 ?m, as well as a process for producing the same. The hydrogel particles may also contain hollow inorganic particles.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: July 17, 2012
    Assignee: Kao Corporation
    Inventors: Kimitaka Tanaka, Satoshi Ueno, Koji Mine
  • HYDROGEL PARTICLE
    Publication number: 20090312213
    Abstract: The present invention relates to hydrogel particles containing bubbles and having a specific gravity of 0.7 to 1.00 and an average particle diameter of 50 to 500 ?m, as well as a process for producing the same. The hydrogel particles may also contain hollow inorganic particles.
    Type: Application
    Filed: June 26, 2007
    Publication date: December 17, 2009
    Inventors: Kimitaka Tanaka, Satoshi Ueno, Koji Mine