Patents by Inventor Tomoko Kiseki

Tomoko Kiseki 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).

  • Hydrophobic silica powder
    Patent number: 11691885
    Abstract: Provided is a hydrophobic silica powder that can be obtained by the sol-gel process, and that is excellent in charge properties. The hydrophobic silica powder has a hydrophobicity of 50% or more, a saturated water content of 4% or less, and a nitrogen content of 0.05% or more.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: July 4, 2023
    Assignee: FUSO CHEMICAL CO., LTD.
    Inventors: Kazui Omokawa, Hirokazu Yokota, Kenichi Takeuchi, Yuma Negishi, Tomoko Kiseki, Munenori Komoto
  • HYDROPHOBIC SILICA POWDER
    Publication number: 20210061667
    Abstract: Provided is a hydrophobic silica powder that can be obtained by the sol-gel process, and that is excellent in charge properties. The hydrophobic silica powder has a hydrophobicity of 50% or more, a saturated water content of 4% or less, and a nitrogen content of 0.05% or more.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 4, 2021
    Applicant: FUSO CHEMICAL CO., LTD.
    Inventors: Kazui Omokawa, Hirokazu Yokota, Kenichi Takeuchi, Yuma Negishi, Tomoko Kiseki, Munenori Komoto