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: 12269296Abstract: 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: GrantFiled: December 23, 2021Date of Patent: April 8, 2025Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Takashi Hagihara, Ryota Ikeda, Takuya Fujimoto, Daichi Takatsuki, Masahiro Tatsuta, Kengo Fukuda
-
Patent number: 11884108Abstract: 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: GrantFiled: June 14, 2022Date of Patent: January 30, 2024Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Tomohisa Kuriyama, Ryota Ikeda, Daichi Takatsuki, Kohei Miyoshi
-
Publication number: 20220396099Abstract: 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: ApplicationFiled: June 14, 2022Publication date: December 15, 2022Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Tomohisa KURIYAMA, Ryota IKEDA, Daichi TAKATSUKI, Kohei MIYOSHI
-
Patent number: 11524529Abstract: 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: GrantFiled: November 17, 2020Date of Patent: December 13, 2022Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Takuya Osawa, Teppei Nakamichi, Kensuke Aizawa, Daichi Takatsuki
-
Publication number: 20220203773Abstract: 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: ApplicationFiled: December 23, 2021Publication date: June 30, 2022Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.Inventors: Takashi HAGIHARA, Ryota IKEDA, Takuya FUJIMOTO, Daichi TAKATSUKI, Masahiro TATSUTA, Kengo FUKUDA
-
Publication number: 20210146729Abstract: 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: ApplicationFiled: November 17, 2020Publication date: May 20, 2021Applicant: Sumitomo Rubber Industries, Ltd.Inventors: Takuya OSAWA, Teppei NAKAMICHI, Kensuke AIZAWA, Daichi TAKATSUKI