Patents by Inventor Yuto KAMEDA

Yuto KAMEDA 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).

  • Titanium dioxide aqueous dispersion and method for producing same
    Patent number: 11702560
    Abstract: Provided are a titanium dioxide aqueous dispersion having high dispersibility and little aggregation or coarse particles, and a method for producing the same. The titanium dioxide aqueous dispersion contains titanium dioxide particles having a hydrophobic compound such as a higher fatty acid or a salt thereof on the surface, an aqueous dispersion medium, a nonionic surfactant having an HLB value of 10 or higher, and a basic compound such as an alkanolamine, and the pH is in the 8.5-13 range. The method for producing a titanium dioxide aqueous dispersion has a step for mixing the titanium dioxide particles having a hydrophobic compound on the surface, the aqueous dispersion medium, the nonionic surfactant having an HLB value of 10 or higher, and the basic compound to bring the pH of the aqueous dispersion into the 8.5-13 range.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: July 18, 2023
    Assignee: ISHIHARA SANGYO KAISHA, LTD.
    Inventors: Masanori Tomonari, Satoshi Nagamori, Yuto Kameda
  • TITANIUM DIOXIDE AQUEOUS DISPERSION AND METHOD FOR PRODUCING SAME
    Publication number: 20200347256
    Abstract: Provided are a titanium dioxide aqueous dispersion having high dispersibility and little aggregation or coarse particles, and a method for producing the same. The titanium dioxide aqueous dispersion contains titanium dioxide particles having a hydrophobic compound such as a higher fatty acid or a salt thereof on the surface, an aqueous dispersion medium, a nonionic surfactant having an HLB value of 10 or higher, and a basic compound such as an alkanolamine, and the pH is in the 8.5-13 range. The method for producing a titanium dioxide aqueous dispersion has a step for mixing the titanium dioxide particles having a hydrophobic compound on the surface, the aqueous dispersion medium, the nonionic surfactant having an HLB value of 10 or higher, and the basic compound to bring the pH of the aqueous dispersion into the 8.5-13 range.
    Type: Application
    Filed: January 28, 2019
    Publication date: November 5, 2020
    Inventors: Masanori TOMONARI, Satoshi NAGAMORI, Yuto KAMEDA