Patents by Inventor Daichi TAKATSUKI

Daichi TAKATSUKI 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: 11884108
    Abstract: A tire that includes a tread portion having a designated mounting direction to a vehicle can comprise: an outer shoulder land portion having a greatest width, in the tire axial direction, of a ground contact surface among five land portions. The outer shoulder land portion can include a plurality of outer shoulder sipes connected to an outer shoulder circumferential groove. An outer middle land portion can include a plurality of outer middle sipes extending completely across the outer middle land portion in the tire axial direction. The outer shoulder sipes and the outer middle sipes each can include a pair of sipe walls. The outer shoulder sipes and the outer middle sipes can each include a body portion in which the pair of sipe walls are disposed substantially parallel to each other. A width of a body portion of each outer shoulder sipe can be greater than a width of a body portion of each outer middle sipe.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: January 30, 2024
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Tomohisa Kuriyama, Ryota Ikeda, Daichi Takatsuki, Kohei Miyoshi
  • Publication number: 20220396099
    Abstract: A tire that includes a tread portion having a designated mounting direction to a vehicle can comprise: an outer shoulder land portion having a greatest width, in the tire axial direction, of a ground contact surface among five land portions. The outer shoulder land portion can include a plurality of outer shoulder sipes connected to an outer shoulder circumferential groove. An outer middle land portion can include a plurality of outer middle sipes extending completely across the outer middle land portion in the tire axial direction. The outer shoulder sipes and the outer middle sipes each can include a pair of sipe walls. The outer shoulder sipes and the outer middle sipes can each include a body portion in which the pair of sipe walls are disposed substantially parallel to each other. A width of a body portion of each outer shoulder sipe can be greater than a width of a body portion of each outer middle sipe.
    Type: Application
    Filed: June 14, 2022
    Publication date: December 15, 2022
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Tomohisa KURIYAMA, Ryota IKEDA, Daichi TAKATSUKI, Kohei MIYOSHI
  • Patent number: 11524529
    Abstract: The tire has a tread portion axially divided into two shoulder land regions, two middle land regions and one crown land region by two shoulder circumferential grooves and two crown circumferential grooves. The middle land regions are each provided with a single longitudinal sipe, and first and second middle transverse grooves extending from the adjacent shoulder circumferential groove and crown circumferential groove, and terminated without being connected to the longitudinal sipe. The shoulder land regions are each provided with shoulder transverse grooves extending from tread edges and terminated within the respective shoulder land regions.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: December 13, 2022
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takuya Osawa, Teppei Nakamichi, Kensuke Aizawa, Daichi Takatsuki
  • Publication number: 20220203773
    Abstract: A tire for which a mounting direction to a vehicle is specified, has a tread portion axially divided into five land portions each provided with sipes. The five land portions are a first shoulder land portion, a first middle land portion, a crown land portion, a second middle land portion, and a second shoulder land portion having ground contacting surface widths W1s, W1m, Wc, W2m and W2s, respectively, which satisfy the following condition: W1s>W1m>Wc>W2m=>W2s under a 50% load state of the tire.
    Type: Application
    Filed: December 23, 2021
    Publication date: June 30, 2022
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Takashi HAGIHARA, Ryota IKEDA, Takuya FUJIMOTO, Daichi TAKATSUKI, Masahiro TATSUTA, Kengo FUKUDA
  • Publication number: 20210146729
    Abstract: The tire has a tread portion axially divided into two shoulder land regions, two middle land regions and one crown land region by two shoulder circumferential grooves and two crown circumferential grooves. The middle land regions are each provided with a single longitudinal sipe, and first and second middle transverse grooves extending from the adjacent shoulder circumferential groove and crown circumferential groove, and terminated without being connected to the longitudinal sipe. The shoulder land regions are each provided with shoulder transverse grooves extending from tread edges and terminated within the respective shoulder land regions.
    Type: Application
    Filed: November 17, 2020
    Publication date: May 20, 2021
    Applicant: Sumitomo Rubber Industries, Ltd.
    Inventors: Takuya OSAWA, Teppei NAKAMICHI, Kensuke AIZAWA, Daichi TAKATSUKI