Patents by Inventor Hiraku Aoyagi

Hiraku Aoyagi 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).

  • Powder comprising silica-coated zinc oxide, organic polymer composition containing the powder and shaped article thereof
    Publication number: 20060167138
    Abstract: A powder comprising silica-coated zinc oxide fine particles in which the surface of each particle is coated with silica, wherein large particles of 5 ?m or more account for 0.1 mass % or less. A powder comprising surface-hydrophobicized silica-coated zinc oxide fine particles in which the silica-coated zinc oxide fine particles whose surfaces have been coated with silica are further treated with a hydrophobicity-imparting agent, wherein large particles of 5 ?m or more account for 0.1 mass % or less.
    Type: Application
    Filed: June 4, 2003
    Publication date: July 27, 2006
    Applicant: SHOWA DENKO K.K.
    Inventors: Nobuaki Ishii, Jun Tanaka, Hiraku Aoyagi