Patents by Inventor Takayasu Arakawa

Takayasu Arakawa 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).

  • Inorganic particle dispersion
    Patent number: 11186740
    Abstract: An inorganic particle dispersion having high spinnability comprises an inorganic powder, hydrophilic fumed silica, and a resin having a hydroxyl group.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: November 30, 2021
    Assignee: HARIMA CHEMICALS, INC.
    Inventors: Takayasu Arakawa, Yoshiaki Yamabayashi, Hideyuki Goto
  • INORGANIC PARTICLE DISPERSION
    Publication number: 20200062989
    Abstract: An inorganic particle dispersion having high spinnability is provided. The inorganic particle dispersion according to one embodiment includes an inorganic powder, hydrophilic fumed silica, and a resin having a hydroxyl group.
    Type: Application
    Filed: March 30, 2018
    Publication date: February 27, 2020
    Applicant: HARIMA CHEMICALS, INC.
    Inventors: Takayasu ARAKAWA, Yoshiaki YAMABAYASHI, Hideyuki GOTO
  • Resin-platinum complex and resin-supported platinum cluster catalyst
    Patent number: 7897817
    Abstract: To provide a catalyst that has sufficient catalytic activity as a platinum catalyst and yet is readily separated from a target material and can be reused. A resin-supported platinum cluster catalyst containing a resin layer comprising a platinum particle core, the average diameter of which is from 1 nm to 10 nm, and a compound containing nitrogen (general formula R1NH2) surrounding the core.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: March 1, 2011
    Assignee: Inter-University Research Institute Corporation National Institutes of Natural Sciences
    Inventors: Yasuhiro Uozumi, Yoichi Yamada, Takayasu Arakawa
  • Resin-Platinum Complex and Resin-Supported Platinum Cluster Catalyst
    Publication number: 20080176739
    Abstract: To provide a catalyst that has sufficient catalytic activity as a platinum catalyst and yet is readily separated from a target material and can be reused. A resin-supported platinum cluster catalyst containing a resin layer comprising a platinum particle core, the average diameter of which is from 1 nm to 10 nm, and a compound containing nitrogen (general formula R1NH2) surrounding the core.
    Type: Application
    Filed: December 1, 2005
    Publication date: July 24, 2008
    Inventors: Yasuhiro Uozumi, Yoichi Yamada, Takayasu Arakawa