Patents by Inventor Aki NAKATSU

Aki NAKATSU 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).

  • RUBBER MODIFIER FOR TIRE AND RUBBER COMPOSITION FOR TIRE
    Publication number: 20230211634
    Abstract: A rubber modifier for a tire includes rosins and/or terpenes and at least one kind of nitrogen-containing compound selected from the group consisting of a nitrogen-containing heterocyclic compound, a tertiary amine compound, and an amino alcohol.
    Type: Application
    Filed: May 13, 2021
    Publication date: July 6, 2023
    Applicant: Harima Chemicals, lncorporated
    Inventors: Takeshi OGI, Katsuya MATSUYOSHI, Takashi ARAMAKI, Kota NOMURA, Aki NAKATSU
  • Filler for tires, rubber composition for tires, tire, method for producing filler for tires, and aggregation inhibitor
    Patent number: 10947363
    Abstract: In a filler for tires containing silica particles and an aggregation inhibitor inhibiting the aggregation of the silica particles, the aggregation inhibitor contains at least one kind selected from the group consisting of phosphate and derivative thereof, amino alcohol, cationic surfactant, water-soluble aminosilane, nitrogen-containing heterocyclic compound, nonionic surfactant, tertiary amine compound, polyvinyl alcohol, non-zinc soap, saturated fatty acid ester, and glycerine fatty acid ester.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 16, 2021
    Assignee: HARIMA CHEMICALS, INCORPORATED
    Inventors: Takeshi Ogi, Tatsuya Tsukamoto, Aki Nakatsu
  • FILLER FOR TIRES, RUBBER COMPOSITION FOR TIRES, TIRE, METHOD FOR PRODUCING FILLER FOR TIRES, AND AGGREGATION INHIBITOR
    Publication number: 20190284364
    Abstract: In a filler for tires containing silica particles and an aggregation inhibitor inhibiting the aggregation of the silica particles, the aggregation inhibitor contains at least one kind selected from the group consisting of phosphate and derivative thereof, amino alcohol, cationic surfactant, water-soluble aminosilane, nitrogen-containing heterocyclic compound, nonionic surfactant, tertiary amine compound, polyvinyl alcohol, non-zinc soap, saturated fatty acid ester, and glycerine fatty acid ester.
    Type: Application
    Filed: May 11, 2017
    Publication date: September 19, 2019
    Applicant: HARIMA CHEMICALS, INCORPORATED
    Inventors: Takeshi OGI, Tatsuya TSUKAMOTO, Aki NAKATSU