Patents by Inventor Ryou Muraguchi

Ryou Muraguchi 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).

  • Silica-Based Particles, Method of Producing the Same, Paint for Forming Coating Film and Coated
    Publication number: 20070275257
    Abstract: To provide silica-based particles with a low refractive index, the hollow and spherical silica-based particles include porous materials or cavities inside an outer shell thereof by growing porous composite oxide particles (primary particles) adjusting a ratio of a quantity of added silica sources versus a quantity of added sources for an inorganic oxide other than silica and then removing the inorganic oxide other than silica. The dispersion liquid of silica-based particles is aged at a range from the room temperature to 300° C., cleaning is performed according to the necessity, and hydrothermal processing is performed at a temperature in the range from 50 to 300° C.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 29, 2007
    Applicant: Catalysts & Chemicals Industries Co., Ltd
    Inventors: Ryou Muraguchi, Mitsuaki Kumazawa, Toshiharu Hirai