Patents by Inventor Keita OHNO

Keita OHNO 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).

  • Publication number: 20230374182
    Abstract: A conjugated diene polymer containing at least conjugated diene monomer units, wherein the conjugated diene polymer has a molecular weight distribution curve obtained by GPC measurement where three or more peaks are present, and the peak top molecular weight of a finally detected peak (Z) is 80000 to 250000, and a polymer chain corresponding to a maximum peak (L) has a degree of adsorption onto silica of less than 40% where in the molecular weight distribution curve, the last detected peak in the GPC measurement is defined as the finally detected peak (Z), and a peak having the largest peak area among peaks excluding the finally detected peak (Z) is defined as the maximum peak (L).
    Type: Application
    Filed: October 7, 2021
    Publication date: November 23, 2023
    Applicants: ZS ELASTOMERS CO., LTD., SUMITOMO CHEMICAL COMPANY, LIMITED, ZEON CORPORATION
    Inventors: Masahide SAKADA, Keita NISHIZAWA, Keita OHNO
  • Publication number: 20230365728
    Abstract: A conjugated diene polymer containing at least conjugated diene monomer units, wherein the conjugated diene polymer contains 95 weight ppm or more of silicon and has an ionic strength index of 75% or less.
    Type: Application
    Filed: October 7, 2021
    Publication date: November 16, 2023
    Applicants: ZS ELASTOMERS CO., LTD., SUMITOMO CHEMICAL COMPANY, LIMITED, ZEON CORPORATION
    Inventors: Keita OHNO, Sho KANESAKA, Yukari ICHIMIYA