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https://drivepatents.com/patents/1394889 · 2 Jul 2025
An object of the present invention is to improve propulsion performance on a snow-covered road surface, and provided is a tire with a tread portion having a groove, wherein the cap rubber layer forming the tread portion contains 40 parts by mass or more an...
https://drivepatents.com/patents/1394950 · 2 Jul 2025
A tire having a tread portion which can improve wear resistance performance when running on uneven ground, wherein the cap rubber layer forming the tread portion contains styrene-butadiene rubber (SBR), isoprene-based rubber, and silica; the content of the...
https://drivepatents.com/patents/1394945 · 2 Jul 2025
It is provided a tire having a tread portion, wherein the cap rubber layer forming the tread portion is formed from a rubber composition containing 60 parts by mass or more and 80 parts by mass or less of styrene-butadiene rubber having a styrene content o...
https://drivepatents.com/patents/1395040 · 2 Jul 2025
A motorcycle tire 1 comprises a tread reinforcement 7 including a jointless band ply 8A. The jointless band ply 8A has a developed width Wa of not more than 65% of the developed tread width TWe. The tread portion 2 has a tread profile P comprising a crown ...
https://drivepatents.com/patents/1396703 · 2 Jul 2025
Provided is a motorcycle tire, that provides excellent steering stability while using steel cords as a belt layer material, which comprises a carcass extending from a tread portion to a bead core of a bead portion via a sidewall portion, and a belt layer a...
https://drivepatents.com/patents/1398483 · 2 Jul 2025
A pneumatic tire has a bead portion provided with a bead core and a bead apex rubber. The bead apex rubber extends radially outward from the radially outer surface of the bead core, and has a radially outer end not positioned in a first region. The first r...
https://drivepatents.com/patents/1391547 · 25 Jun 2025
A retreaded tire includes a base tire (1a) and a tread rubber (2a) for retread adhered to the base tire. The tread rubber (2a) includes a first tread edge (T1) and a first shoulder circumferential groove (11) adjacent to the first tread edge (T1) and exten...
https://drivepatents.com/patents/1391672 · 25 Jun 2025
A tire comprises a tread portion 2 provided with blocks 11 including a first block 13 provided with a plurality of sipes 15. Each sipe 15 comprises a zigzag portion in a cross section perpendicular to the sipe length direction, and a zigzag portion in a cr...
https://drivepatents.com/patents/1392473 · 25 Jun 2025
A heavy duty tire 2 includes a tread 4 having a tread surface 6. A circumferential groove 10 located between middle land portions 12m on a first end side and a second end side of the tread surface 6 is a circumferential narrow groove 36. The circumferentia...
https://drivepatents.com/patents/1396866 · 25 Jun 2025
A contour CL of a carcass 12 includes a curved portion 44 and an inversely curved portion 46. A boundary between the curved portion 44 and the inversely curved portion 46 is an inflection point PV. Apart or an entirety of the curved portion 44 is represent...