Patents by Inventor Yudai YABE

Yudai YABE 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).

  • Patent number: 10836884
    Abstract: Provided are a rubber composition excellent in fracture resistance, wear resistance, and on-ice performance, and a tire obtained therefrom. There are provided a rubber composition containing: a diene-based rubber component; a short fiber; and a surface active agent, in which the surface active agent contains at least one material selected from the group consisting of a fatty acid polyhydric alcohol ester, a nonionic ester type surface active agent, an alkanolamide type surface active agent, and a sulfonic acid type surface active agent, and a tire obtained from the rubber composition, more particularly a studless tire.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: November 17, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Yudai Yabe
  • Publication number: 20180298163
    Abstract: Provided are a rubber composition excellent in fracture resistance, wear resistance, and on-ice performance, and a tire obtained therefrom. There are provided a rubber composition containing: a diene-based rubber component; a short fiber; and a surface active agent, in which the surface active agent contains at least one material selected from the group consisting of a fatty acid polyhydric alcohol ester, a nonionic ester type surface active agent, an alkanolamide type surface active agent, and a sulfonic acid type surface active agent, and a tire obtained from the rubber composition, more particularly a studless tire.
    Type: Application
    Filed: October 21, 2016
    Publication date: October 18, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Yudai YABE
  • Publication number: 20180030251
    Abstract: This disclosure is to provide a rubber composition excellent in low loss property, breaking resistance and wear resistance. In order to achieve the aforementioned purpose, this disclosure is a rubber composition containing a rubber component having a diene-based polymer and a silica, wherein: the diene-based polymer has 3 or more modified functional groups capable of interacting with the silica merely within a range of ¼ of an entire chain length from a terminal, and has at least one monomer structural unit of a diene-based polymer among the modified functional groups; and a content of the silica is 60 to 250 parts by mass per 100 parts by mass of the rubber component.
    Type: Application
    Filed: March 4, 2016
    Publication date: February 1, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Eiju SUZUKI, Yudai YABE
  • Publication number: 20180030159
    Abstract: This disclosure is to provide a rubber composition excellent in low loss property and wear resistance without deteriorating the processability. The rubber composition of this disclosure contains a rubber component having a diene-based polymer, a silica, and a glycerin fatty acid ester composition, wherein: the diene-based polymer has 3 or more modified functional groups capable of interacting with the silica merely within a range of ¼ of an entire chain length from a terminal, and has at least one monomer structural unit of a diene-based polymer among the modified functional groups; and the glycerin fatty acid ester composition has a glycerin fatty acid monoester and a glycerin fatty acid diester of C8 to C28 fatty acids, and a content of the glycerin fatty acid ester composition is 0.5 to 15 parts by mass per 100 parts by mass of the rubber component.
    Type: Application
    Filed: March 1, 2016
    Publication date: February 1, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kenji NAKATANI, Yudai YABE